./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 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/MultCommutative-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU --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-dev-4fc63b2 [2024-10-31 22:03:43,751 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:03:43,852 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 22:03:43,857 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:03:43,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:03:43,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:03:43,884 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:03:43,885 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:03:43,885 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:03:43,886 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:03:43,887 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:03:43,887 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:03:43,888 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:03:43,888 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:03:43,889 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:03:43,889 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:03:43,890 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:03:43,890 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:03:43,890 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:03:43,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:03:43,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:03:43,895 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:03:43,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:03:43,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:03:43,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:03:43,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:03:43,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:03:43,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:03:43,901 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:03:43,901 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:03:43,902 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:03:43,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:03:43,903 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:03:43,906 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:03:43,906 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:03:43,907 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:03:43,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:03:43,907 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:03:43,908 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:03:43,908 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce29b37e076ab683230ebf17073db3b7759ea39570dd2ef64322b6d43bb636cd [2024-10-31 22:03:44,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:03:44,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:03:44,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:03:44,248 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:03:44,249 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:03:44,250 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/recursive/MultCommutative-2.c Unable to find full path for "g++" [2024-10-31 22:03:46,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:03:47,060 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:03:47,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/sv-benchmarks/c/recursive/MultCommutative-2.c [2024-10-31 22:03:47,072 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/data/541d627cd/f252e7d92bd943eaabc6e54fe96b8f3e/FLAGb6d6225fe [2024-10-31 22:03:47,097 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/data/541d627cd/f252e7d92bd943eaabc6e54fe96b8f3e [2024-10-31 22:03:47,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:03:47,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:03:47,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:47,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:03:47,117 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:03:47,118 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11ed7fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47, skipping insertion in model container [2024-10-31 22:03:47,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,147 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:03:47,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:47,404 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:03:47,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:47,436 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:03:47,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47 WrapperNode [2024-10-31 22:03:47,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:47,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:47,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:03:47,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:03:47,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,473 INFO L138 Inliner]: procedures = 13, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2024-10-31 22:03:47,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:47,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:03:47,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:03:47,475 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:03:47,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,495 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,507 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]. [2024-10-31 22:03:47,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,513 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,515 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,520 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:03:47,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:03:47,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:03:47,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:03:47,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47" (1/1) ... [2024-10-31 22:03:47,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:47,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:47,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:47,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:03:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:03:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2024-10-31 22:03:47,611 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2024-10-31 22:03:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:03:47,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:03:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:03:47,679 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:03:47,681 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:03:47,875 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-31 22:03:47,876 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:03:47,893 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:03:47,894 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:03:47,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:47 BoogieIcfgContainer [2024-10-31 22:03:47,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:03:47,896 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:03:47,898 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:03:47,903 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:03:47,904 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:03:47,905 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:03:47" (1/3) ... [2024-10-31 22:03:47,906 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38fdcf3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:03:47, skipping insertion in model container [2024-10-31 22:03:47,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:03:47,907 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:47" (2/3) ... [2024-10-31 22:03:47,908 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38fdcf3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:03:47, skipping insertion in model container [2024-10-31 22:03:47,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:03:47,909 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:47" (3/3) ... [2024-10-31 22:03:47,910 INFO L332 chiAutomizerObserver]: Analyzing ICFG MultCommutative-2.c [2024-10-31 22:03:47,985 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:03:47,986 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:03:47,986 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:03:47,986 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:03:47,988 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:03:47,988 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:03:47,988 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:03:47,988 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:03:47,994 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) [2024-10-31 22:03:48,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:03:48,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:48,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:48,032 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-31 22:03:48,032 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:03:48,032 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:03:48,033 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) [2024-10-31 22:03:48,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:03:48,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:48,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:48,039 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-31 22:03:48,039 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:03:48,048 INFO L745 eck$LassoCheckResult]: Stem: 18#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 7#L29true assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 10#L33true assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 13#L36true call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 5#$Ultimate##0true [2024-10-31 22:03:48,048 INFO L747 eck$LassoCheckResult]: Loop: 5#$Ultimate##0true ~n := #in~n;~m := #in~m; 3#L18true assume ~m < 0; 20#L19true call #t~ret4 := mult(~n, -~m);< 5#$Ultimate##0true [2024-10-31 22:03:48,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:48,059 INFO L85 PathProgramCache]: Analyzing trace with hash 42056135, now seen corresponding path program 1 times [2024-10-31 22:03:48,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:48,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254486978] [2024-10-31 22:03:48,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:48,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:48,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:48,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:48,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:48,262 INFO L85 PathProgramCache]: Analyzing trace with hash 29927, now seen corresponding path program 1 times [2024-10-31 22:03:48,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:48,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146677159] [2024-10-31 22:03:48,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:48,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:48,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:48,286 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:48,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:48,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1236132511, now seen corresponding path program 1 times [2024-10-31 22:03:48,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:48,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157467809] [2024-10-31 22:03:48,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:48,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:48,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:48,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157467809] [2024-10-31 22:03:48,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157467809] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:48,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:48,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:03:48,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388233857] [2024-10-31 22:03:48,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:48,670 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:48,670 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:48,671 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:48,671 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:48,671 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:03:48,671 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:48,672 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:48,672 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:48,672 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2024-10-31 22:03:48,672 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:48,673 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:48,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:48,704 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:48,714 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:48,727 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:48,733 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:48,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:48,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:48,910 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:48,911 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:03:48,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:48,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:48,917 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:48,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:03:48,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:48,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:48,948 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:48,949 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:48,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 22:03:48,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:48,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:48,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:48,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:03:48,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:48,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:49,002 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:49,002 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:49,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:49,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,026 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:03:49,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:49,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:49,046 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:49,046 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:49,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:49,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,064 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:03:49,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:49,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:49,083 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:49,083 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret5=0} Honda state: {mult_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:49,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 22:03:49,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,110 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:03:49,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:49,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:49,135 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:49,135 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:49,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 22:03:49,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,159 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:03:49,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:49,165 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:49,182 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:49,183 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:49,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:49,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,206 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:03:49,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:49,210 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:49,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:49,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,246 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:03:49,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:03:49,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:49,298 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:03:49,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:49,302 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:49,302 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:49,303 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:49,303 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:49,303 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:03:49,303 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,303 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:49,303 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:49,303 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2024-10-31 22:03:49,303 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:49,303 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:49,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:49,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:49,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:49,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:49,323 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:49,329 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:49,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:49,409 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:49,414 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:03:49,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,418 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:03:49,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:49,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:49,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:49,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:49,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:49,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:49,442 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:49,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:49,450 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:49,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:03:49,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,475 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:03:49,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:49,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:49,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:49,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:49,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:49,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:49,494 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:49,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:49,497 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:49,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 22:03:49,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,520 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:03:49,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:49,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:49,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:49,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:49,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:49,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:49,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:49,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:49,542 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:49,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:49,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,557 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:03:49,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:49,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:49,570 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:49,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:49,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:49,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:49,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:49,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:49,574 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:49,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:03:49,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,595 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:03:49,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:49,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:49,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:49,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:49,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:49,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:49,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:49,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:49,619 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:49,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:49,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,645 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:03:49,648 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:49,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:49,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:49,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:49,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:49,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:49,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:49,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:49,674 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:49,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:03:49,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,697 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:03:49,703 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:49,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:49,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:49,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:49,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:49,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:49,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:49,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:49,732 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:03:49,749 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:03:49,750 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:03:49,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:49,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:49,770 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:49,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:03:49,773 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:03:49,777 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:03:49,777 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:03:49,778 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2024-10-31 22:03:49,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:03:49,801 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:03:49,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:49,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:03:49,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:49,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:03:49,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:50,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:50,074 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 [2024-10-31 22:03:50,078 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) [2024-10-31 22:03:50,241 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. [2024-10-31 22:03:50,246 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 [2024-10-31 22:03:50,251 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) [2024-10-31 22:03:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2024-10-31 22:03:50,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2024-10-31 22:03:50,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:50,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2024-10-31 22:03:50,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:50,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 5 letters. Loop has 6 letters. [2024-10-31 22:03:50,259 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:50,260 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 67 transitions. [2024-10-31 22:03:50,268 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:03:50,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 32 states and 45 transitions. [2024-10-31 22:03:50,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-10-31 22:03:50,283 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-10-31 22:03:50,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 45 transitions. [2024-10-31 22:03:50,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:03:50,285 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 45 transitions. [2024-10-31 22:03:50,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 45 transitions. [2024-10-31 22:03:50,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2024-10-31 22:03:50,323 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) [2024-10-31 22:03:50,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2024-10-31 22:03:50,329 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 37 transitions. [2024-10-31 22:03:50,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:50,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:03:50,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:03:50,337 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) [2024-10-31 22:03:50,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:50,442 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2024-10-31 22:03:50,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2024-10-31 22:03:50,446 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:03:50,451 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 34 transitions. [2024-10-31 22:03:50,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2024-10-31 22:03:50,452 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-10-31 22:03:50,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2024-10-31 22:03:50,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:03:50,453 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-10-31 22:03:50,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2024-10-31 22:03:50,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2024-10-31 22:03:50,459 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) [2024-10-31 22:03:50,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2024-10-31 22:03:50,461 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2024-10-31 22:03:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:50,463 INFO L425 stractBuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2024-10-31 22:03:50,464 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:03:50,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2024-10-31 22:03:50,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:03:50,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:50,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:50,467 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:50,468 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:03:50,468 INFO L745 eck$LassoCheckResult]: Stem: 217#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 215#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 211#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 212#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 200#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 202#$Ultimate##0 ~n := #in~n;~m := #in~m; 199#L18 assume !(~m < 0); 201#L21 assume !(0 == ~m); 208#L24 call #t~ret5 := mult(~n, ~m - 1);< 216#$Ultimate##0 [2024-10-31 22:03:50,469 INFO L747 eck$LassoCheckResult]: Loop: 216#$Ultimate##0 ~n := #in~n;~m := #in~m; 220#L18 assume ~m < 0; 207#L19 call #t~ret4 := mult(~n, -~m);< 216#$Ultimate##0 [2024-10-31 22:03:50,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:50,469 INFO L85 PathProgramCache]: Analyzing trace with hash 334599728, now seen corresponding path program 1 times [2024-10-31 22:03:50,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:50,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834208237] [2024-10-31 22:03:50,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:50,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:50,485 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:50,501 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:50,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:50,502 INFO L85 PathProgramCache]: Analyzing trace with hash 29927, now seen corresponding path program 2 times [2024-10-31 22:03:50,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:50,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185594700] [2024-10-31 22:03:50,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:50,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:50,509 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:50,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:50,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:50,516 INFO L85 PathProgramCache]: Analyzing trace with hash -558597032, now seen corresponding path program 1 times [2024-10-31 22:03:50,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:50,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343118785] [2024-10-31 22:03:50,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:50,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:50,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:50,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:50,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343118785] [2024-10-31 22:03:50,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343118785] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:50,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:50,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:03:50,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342058026] [2024-10-31 22:03:50,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:50,734 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:50,734 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:50,734 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:50,735 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:50,735 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:03:50,735 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:50,735 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:50,735 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:50,735 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2024-10-31 22:03:50,735 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:50,735 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:50,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:50,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:50,744 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:50,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:50,755 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:50,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:50,766 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:50,831 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:50,831 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:03:50,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:50,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:50,833 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:50,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:50,859 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:50,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:03:50,887 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:50,887 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:50,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-31 22:03:50,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:50,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:50,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:50,910 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:50,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:03:50,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:50,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:50,930 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:50,930 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:50,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-31 22:03:50,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:50,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:50,955 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:50,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:03:50,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:50,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:50,990 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:50,990 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:51,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-31 22:03:51,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:51,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:51,012 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:51,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:03:51,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:51,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:51,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 22:03:51,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:51,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:51,069 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:51,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:03:51,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:03:51,077 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:51,233 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:03:51,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:51,239 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:51,239 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:51,239 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:51,239 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:51,239 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:03:51,239 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:51,239 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:51,239 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:51,239 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2024-10-31 22:03:51,239 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:51,239 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:51,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:51,251 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:51,254 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:51,262 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:51,275 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:51,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:51,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:51,351 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:51,351 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:03:51,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:51,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:51,353 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:51,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:03:51,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:51,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:51,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:51,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:51,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:51,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:51,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:51,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:51,374 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:51,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:51,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:51,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:51,395 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:51,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:03:51,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:51,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:51,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:51,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:51,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:51,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:51,414 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:51,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:51,417 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:51,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-10-31 22:03:51,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:51,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:51,439 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:51,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:03:51,444 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:51,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:51,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:51,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:51,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:51,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:51,457 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:51,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:51,463 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:51,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-31 22:03:51,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:51,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:51,485 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:51,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:03:51,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:51,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:51,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:51,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:51,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:51,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:51,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:51,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:51,520 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:03:51,527 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:03:51,527 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:03:51,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:51,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:51,530 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:51,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:03:51,532 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:03:51,532 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:03:51,533 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:03:51,533 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2024-10-31 22:03:51,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:51,555 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:03:51,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:51,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:03:51,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:51,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:03:51,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:51,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:51,738 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 [2024-10-31 22:03:51,738 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) [2024-10-31 22:03:51,856 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. [2024-10-31 22:03:51,857 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 [2024-10-31 22:03:51,858 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) [2024-10-31 22:03:51,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 28 transitions. [2024-10-31 22:03:51,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2024-10-31 22:03:51,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:51,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2024-10-31 22:03:51,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:51,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2024-10-31 22:03:51,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:51,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 92 transitions. [2024-10-31 22:03:51,866 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-31 22:03:51,868 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 51 states and 66 transitions. [2024-10-31 22:03:51,868 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2024-10-31 22:03:51,872 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-10-31 22:03:51,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 66 transitions. [2024-10-31 22:03:51,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:03:51,873 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 66 transitions. [2024-10-31 22:03:51,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 66 transitions. [2024-10-31 22:03:51,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2024-10-31 22:03:51,879 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) [2024-10-31 22:03:51,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2024-10-31 22:03:51,881 INFO L240 hiAutomatonCegarLoop]: Abstraction has 44 states and 55 transitions. [2024-10-31 22:03:51,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:51,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:03:51,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:03:51,883 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) [2024-10-31 22:03:51,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:51,953 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2024-10-31 22:03:51,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 58 transitions. [2024-10-31 22:03:51,955 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2024-10-31 22:03:51,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 42 states and 48 transitions. [2024-10-31 22:03:51,956 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-10-31 22:03:51,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-10-31 22:03:51,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 48 transitions. [2024-10-31 22:03:51,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:03:51,957 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-10-31 22:03:51,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 48 transitions. [2024-10-31 22:03:51,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-10-31 22:03:51,960 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) [2024-10-31 22:03:51,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2024-10-31 22:03:51,962 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-10-31 22:03:51,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:03:51,964 INFO L425 stractBuchiCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-10-31 22:03:51,964 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:03:51,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 48 transitions. [2024-10-31 22:03:51,965 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2024-10-31 22:03:51,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:51,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:51,966 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:51,966 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:03:51,966 INFO L745 eck$LassoCheckResult]: Stem: 492#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 489#L-1 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; 487#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; 488#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 478#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 490#$Ultimate##0 ~n := #in~n;~m := #in~m; 502#L18 assume !(~m < 0); 500#L21 assume 0 == ~m;#res := 0; 501#multFINAL assume true; 513#multEXIT >#48#return; 512#L36-1 main_~res1~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 508#L37 call main_#t~ret9#1 := mult(main_~n~0#1, main_~m~0#1);< 511#$Ultimate##0 [2024-10-31 22:03:51,966 INFO L747 eck$LassoCheckResult]: Loop: 511#$Ultimate##0 ~n := #in~n;~m := #in~m; 510#L18 assume ~m < 0; 507#L19 call #t~ret4 := mult(~n, -~m);< 511#$Ultimate##0 [2024-10-31 22:03:51,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:51,967 INFO L85 PathProgramCache]: Analyzing trace with hash -560426956, now seen corresponding path program 1 times [2024-10-31 22:03:51,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:51,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609032319] [2024-10-31 22:03:51,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:51,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:51,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:51,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:51,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:51,990 INFO L85 PathProgramCache]: Analyzing trace with hash 29927, now seen corresponding path program 3 times [2024-10-31 22:03:51,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:51,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724057427] [2024-10-31 22:03:51,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:51,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:52,000 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:52,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:52,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:52,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1141566508, now seen corresponding path program 1 times [2024-10-31 22:03:52,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:52,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491558171] [2024-10-31 22:03:52,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:52,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:52,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-31 22:03:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:52,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:52,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:52,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491558171] [2024-10-31 22:03:52,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491558171] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:52,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:52,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:03:52,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841156012] [2024-10-31 22:03:52,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:52,183 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:52,183 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:52,183 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:52,183 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:52,184 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:03:52,184 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:52,184 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:52,184 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:52,184 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2024-10-31 22:03:52,184 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:52,184 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:52,185 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,189 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,195 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,199 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,208 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,271 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:52,271 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:03:52,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:52,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:52,274 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:52,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:03:52,277 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:52,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:52,294 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:52,294 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret5=0} Honda state: {mult_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:52,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-10-31 22:03:52,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:52,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:52,315 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:52,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:03:52,318 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:52,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:52,332 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:52,332 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret4=0} Honda state: {mult_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:52,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:52,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:52,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:52,347 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:52,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:03:52,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:52,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:52,362 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:52,362 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:52,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-10-31 22:03:52,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:52,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:52,376 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:52,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:03:52,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:52,380 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:52,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:52,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:52,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:52,420 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:52,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 22:03:52,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:03:52,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:52,486 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:03:52,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-10-31 22:03:52,489 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:52,489 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:52,489 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:52,489 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:52,489 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:03:52,489 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:52,489 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:52,490 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:52,490 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2024-10-31 22:03:52,490 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:52,490 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:52,491 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,493 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,495 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,499 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:52,554 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:52,554 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:03:52,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:52,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:52,557 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:52,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 22:03:52,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:52,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:52,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:52,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:52,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:52,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:52,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:52,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:52,577 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:52,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:52,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:52,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:52,597 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:52,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:03:52,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:52,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:52,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:52,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:52,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:52,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:52,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:52,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:52,618 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:52,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:52,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:52,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:52,632 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:52,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:52,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 22:03:52,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:52,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:52,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:52,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:52,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:52,647 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:52,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:52,648 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:52,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-10-31 22:03:52,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:52,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:52,663 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:52,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-31 22:03:52,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:52,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:52,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:52,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:52,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:52,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:52,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:52,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:52,678 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:52,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:52,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:52,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:52,691 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:52,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-31 22:03:52,692 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:52,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:52,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:52,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:52,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:52,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:52,706 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:52,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:52,708 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:03:52,713 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:03:52,713 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:03:52,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:52,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:52,715 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:52,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-31 22:03:52,720 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:03:52,720 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:03:52,720 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:03:52,720 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2024-10-31 22:03:52,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:52,734 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:03:52,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:52,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:03:52,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:52,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:03:52,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:52,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:52,916 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 [2024-10-31 22:03:52,917 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) [2024-10-31 22:03:53,026 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. [2024-10-31 22:03:53,027 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 [2024-10-31 22:03:53,028 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) [2024-10-31 22:03:53,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2024-10-31 22:03:53,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 3 letters. [2024-10-31 22:03:53,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:53,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 3 letters. [2024-10-31 22:03:53,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:53,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 6 letters. [2024-10-31 22:03:53,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:53,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 91 transitions. [2024-10-31 22:03:53,031 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-31 22:03:53,033 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 63 states and 71 transitions. [2024-10-31 22:03:53,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2024-10-31 22:03:53,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2024-10-31 22:03:53,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 71 transitions. [2024-10-31 22:03:53,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:03:53,034 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 71 transitions. [2024-10-31 22:03:53,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 71 transitions. [2024-10-31 22:03:53,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 36. [2024-10-31 22:03:53,037 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) [2024-10-31 22:03:53,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2024-10-31 22:03:53,037 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 42 transitions. [2024-10-31 22:03:53,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:53,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:03:53,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:03:53,039 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) [2024-10-31 22:03:53,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:53,069 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2024-10-31 22:03:53,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 43 transitions. [2024-10-31 22:03:53,070 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-31 22:03:53,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 38 states and 42 transitions. [2024-10-31 22:03:53,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2024-10-31 22:03:53,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2024-10-31 22:03:53,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 42 transitions. [2024-10-31 22:03:53,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:03:53,071 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 42 transitions. [2024-10-31 22:03:53,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 42 transitions. [2024-10-31 22:03:53,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2024-10-31 22:03:53,074 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) [2024-10-31 22:03:53,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2024-10-31 22:03:53,075 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 36 transitions. [2024-10-31 22:03:53,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:53,077 INFO L425 stractBuchiCegarLoop]: Abstraction has 32 states and 36 transitions. [2024-10-31 22:03:53,078 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:03:53,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 36 transitions. [2024-10-31 22:03:53,078 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-31 22:03:53,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:53,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:53,079 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:53,079 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:03:53,079 INFO L745 eck$LassoCheckResult]: Stem: 779#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 777#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~m~0#1, main_~n~0#1, main_~res1~0#1, main_~res2~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 771#L29 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 46340);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 772#L33 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 46340); 776#L36 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 778#$Ultimate##0 ~n := #in~n;~m := #in~m; 786#L18 assume !(~m < 0); 784#L21 assume 0 == ~m;#res := 0; 782#multFINAL assume true; 781#multEXIT >#48#return; 780#L36-1 main_~res1~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1; 766#L37 call main_#t~ret9#1 := mult(main_~n~0#1, main_~m~0#1);< 767#$Ultimate##0 [2024-10-31 22:03:53,079 INFO L747 eck$LassoCheckResult]: Loop: 767#$Ultimate##0 ~n := #in~n;~m := #in~m; 763#L18 assume !(~m < 0); 765#L21 assume !(0 == ~m); 764#L24 call #t~ret5 := mult(~n, ~m - 1);< 767#$Ultimate##0 [2024-10-31 22:03:53,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:53,080 INFO L85 PathProgramCache]: Analyzing trace with hash -560426956, now seen corresponding path program 2 times [2024-10-31 22:03:53,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:53,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390195994] [2024-10-31 22:03:53,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:53,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:53,089 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:53,100 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:53,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:53,100 INFO L85 PathProgramCache]: Analyzing trace with hash 929642, now seen corresponding path program 1 times [2024-10-31 22:03:53,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:53,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091085324] [2024-10-31 22:03:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:53,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:53,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:53,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:53,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:53,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1028821475, now seen corresponding path program 1 times [2024-10-31 22:03:53,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:53,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18378089] [2024-10-31 22:03:53,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:53,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:53,116 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:53,125 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:53,189 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:53,190 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:53,190 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:53,190 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:53,190 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:03:53,190 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:53,190 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:53,190 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:53,190 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2024-10-31 22:03:53,190 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:53,190 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:53,191 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,195 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,203 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,206 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,208 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,263 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:53,263 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:03:53,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:53,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:53,266 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:53,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-31 22:03:53,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:53,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:53,281 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:53,281 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:53,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:53,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:53,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:53,294 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:53,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-31 22:03:53,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:53,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:53,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-10-31 22:03:53,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:53,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:53,321 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:53,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-31 22:03:53,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:03:53,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:53,353 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:03:53,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:53,356 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:53,356 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:53,356 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:53,356 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:53,356 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:03:53,356 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:53,356 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:53,356 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:53,356 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2024-10-31 22:03:53,356 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:53,357 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:53,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,363 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,374 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,377 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:53,428 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:53,428 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:03:53,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:53,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:53,430 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:53,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-31 22:03:53,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:53,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:53,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:53,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:53,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:53,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:53,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:53,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:53,457 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:53,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:53,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:53,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:53,476 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:53,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-31 22:03:53,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:53,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:53,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:53,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:53,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:53,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:53,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:53,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:53,502 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:53,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:53,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:53,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:53,524 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:53,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-10-31 22:03:53,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:53,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-10-31 22:03:53,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:53,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:53,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:53,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:53,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:53,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:53,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:53,546 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:53,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:53,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:53,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:53,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:53,566 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:53,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-10-31 22:03:53,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:53,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:53,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:53,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:53,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:53,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:53,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:53,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:53,586 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:03:53,590 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:03:53,590 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:03:53,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:53,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:53,593 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:53,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-10-31 22:03:53,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:03:53,596 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:03:53,596 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:03:53,596 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2024-10-31 22:03:53,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-10-31 22:03:53,618 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:03:53,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:53,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:03:53,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:53,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:03:53,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:53,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:53,832 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 [2024-10-31 22:03:53,833 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) [2024-10-31 22:03:53,953 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. [2024-10-31 22:03:53,953 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 [2024-10-31 22:03:53,954 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) [2024-10-31 22:03:53,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2024-10-31 22:03:53,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 4 letters. [2024-10-31 22:03:53,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:53,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 16 letters. Loop has 4 letters. [2024-10-31 22:03:53,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:53,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 8 letters. [2024-10-31 22:03:53,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:53,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 46 transitions. [2024-10-31 22:03:53,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:03:53,957 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 16 states and 16 transitions. [2024-10-31 22:03:53,957 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-10-31 22:03:53,957 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-10-31 22:03:53,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 16 transitions. [2024-10-31 22:03:53,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:03:53,958 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-10-31 22:03:53,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 16 transitions. [2024-10-31 22:03:53,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 9. [2024-10-31 22:03:53,959 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) [2024-10-31 22:03:53,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-10-31 22:03:53,959 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-10-31 22:03:53,959 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-10-31 22:03:53,959 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:03:53,959 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 9 transitions. [2024-10-31 22:03:53,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:03:53,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:53,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:53,960 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-31 22:03:53,960 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:03:53,960 INFO L745 eck$LassoCheckResult]: Stem: 932#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 933#L-1 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; 934#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 call main_#t~ret8#1 := mult(main_~m~0#1, main_~n~0#1);< 931#$Ultimate##0 [2024-10-31 22:03:53,960 INFO L747 eck$LassoCheckResult]: Loop: 931#$Ultimate##0 ~n := #in~n;~m := #in~m; 927#L18 assume !(~m < 0); 929#L21 assume !(0 == ~m); 930#L24 call #t~ret5 := mult(~n, ~m - 1);< 931#$Ultimate##0 [2024-10-31 22:03:53,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:53,961 INFO L85 PathProgramCache]: Analyzing trace with hash 42056135, now seen corresponding path program 2 times [2024-10-31 22:03:53,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:53,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381653910] [2024-10-31 22:03:53,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:53,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:53,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:53,972 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:53,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:53,973 INFO L85 PathProgramCache]: Analyzing trace with hash 929642, now seen corresponding path program 2 times [2024-10-31 22:03:53,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:53,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957490419] [2024-10-31 22:03:53,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:53,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:53,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:53,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:53,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:53,981 INFO L85 PathProgramCache]: Analyzing trace with hash 334599728, now seen corresponding path program 2 times [2024-10-31 22:03:53,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:53,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616697458] [2024-10-31 22:03:53,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:53,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:53,988 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:53,994 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:54,062 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:54,063 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:54,063 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:54,063 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:54,063 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:03:54,063 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:54,063 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:54,063 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:54,063 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2024-10-31 22:03:54,063 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:54,063 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:54,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,080 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,086 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,089 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,147 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:54,147 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:03:54,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:54,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:54,148 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:54,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-10-31 22:03:54,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:54,151 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:54,167 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:54,167 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:54,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-10-31 22:03:54,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:54,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:54,187 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:54,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-10-31 22:03:54,190 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:54,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:54,207 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:03:54,207 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:03:54,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:54,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:54,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:54,228 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:54,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-10-31 22:03:54,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:03:54,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:54,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:54,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:54,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:54,268 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:54,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:03:54,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:03:54,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-10-31 22:03:54,313 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:03:54,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:54,317 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:54,317 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:54,317 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:54,317 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:54,317 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:03:54,317 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:54,317 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:54,317 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:54,318 INFO L132 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2024-10-31 22:03:54,318 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:54,318 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:54,322 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,348 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,354 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:54,432 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:54,432 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:03:54,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:54,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:54,434 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:54,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-10-31 22:03:54,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:54,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:54,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:54,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:54,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:54,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:54,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:54,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:54,457 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:54,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:54,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:54,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:54,477 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:54,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-10-31 22:03:54,479 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:54,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:54,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:54,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:54,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:54,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:54,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:54,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:54,493 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:54,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-10-31 22:03:54,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:54,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:54,508 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:54,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-10-31 22:03:54,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:54,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:54,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:54,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:54,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:54,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:54,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:54,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:54,526 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:03:54,530 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:03:54,530 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:03:54,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:54,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:54,533 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:54,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-10-31 22:03:54,535 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:03:54,535 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:03:54,535 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:03:54,535 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2024-10-31 22:03:54,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-10-31 22:03:54,556 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:03:54,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:54,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:03:54,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:54,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:03:54,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:54,683 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-10-31 22:03:54,684 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) [2024-10-31 22:03:54,768 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. [2024-10-31 22:03:54,769 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 [2024-10-31 22:03:54,770 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) [2024-10-31 22:03:54,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2024-10-31 22:03:54,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2024-10-31 22:03:54,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:54,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-31 22:03:54,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:54,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 8 letters. [2024-10-31 22:03:54,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:54,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 19 transitions. [2024-10-31 22:03:54,772 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:03:54,772 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2024-10-31 22:03:54,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:03:54,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:03:54,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:03:54,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:03:54,775 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:03:54,775 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:03:54,775 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:03:54,775 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:03:54,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:03:54,776 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:03:54,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:03:54,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:03:54 BoogieIcfgContainer [2024-10-31 22:03:54,786 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:03:54,786 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:03:54,786 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:03:54,787 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:03:54,787 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:47" (3/4) ... [2024-10-31 22:03:54,791 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:03:54,792 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:03:54,794 INFO L158 Benchmark]: Toolchain (without parser) took 7687.60ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 105.8MB in the beginning and 112.6MB in the end (delta: -6.8MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. [2024-10-31 22:03:54,794 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 146.8MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:03:54,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.77ms. Allocated memory is still 146.8MB. Free memory was 105.8MB in the beginning and 93.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:03:54,795 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.84ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 92.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:03:54,795 INFO L158 Benchmark]: Boogie Preprocessor took 47.48ms. Allocated memory is still 146.8MB. Free memory was 92.4MB in the beginning and 90.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:03:54,798 INFO L158 Benchmark]: RCFGBuilder took 371.94ms. Allocated memory is still 146.8MB. Free memory was 90.8MB in the beginning and 80.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:03:54,799 INFO L158 Benchmark]: BuchiAutomizer took 6889.59ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 79.9MB in the beginning and 112.6MB in the end (delta: -32.6MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2024-10-31 22:03:54,799 INFO L158 Benchmark]: Witness Printer took 5.56ms. Allocated memory is still 211.8MB. Free memory is still 112.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:03:54,802 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 146.8MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.77ms. Allocated memory is still 146.8MB. Free memory was 105.8MB in the beginning and 93.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.84ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 92.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.48ms. Allocated memory is still 146.8MB. Free memory was 92.4MB in the beginning and 90.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 371.94ms. Allocated memory is still 146.8MB. Free memory was 90.8MB in the beginning and 80.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 6889.59ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 79.9MB in the beginning and 112.6MB in the end (delta: -32.6MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * Witness Printer took 5.56ms. Allocated memory is still 211.8MB. Free memory is still 112.6MB. 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 6.8s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 4.7s. Construction of modules took 0.2s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 3. Automata minimization 0.1s 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, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 260 SdHoareTripleChecker+Invalid, 0.3s 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: 35ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-31 22:03:54,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-10-31 22:03:55,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-10-31 22:03:55,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb5c381-1776-41fa-9a58-42dac983d1ee/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE