./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 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_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 759adb73d7cf84e38b053793a18c9790a1be4e7fcbaa9f1ea135fb0a39711b48 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:07:19,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:07:19,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:07:19,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:07:19,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:07:19,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:07:19,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:07:19,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:07:19,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:07:19,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:07:19,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:07:19,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:07:19,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:07:19,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:07:19,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:07:19,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:07:19,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:07:19,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:07:19,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:07:19,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:07:19,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:07:19,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:07:19,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:07:19,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:07:19,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:07:19,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:07:19,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:07:19,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:07:19,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:07:19,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:07:19,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:07:19,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:07:19,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:07:19,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:07:19,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:07:19,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:07:19,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:07:19,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:07:19,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:07:19,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:07:19,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:07:19,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-21 16:07:19,181 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:07:19,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:07:19,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:07:19,182 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:07:19,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:07:19,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:07:19,184 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:07:19,184 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 16:07:19,184 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 16:07:19,185 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 16:07:19,185 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 16:07:19,185 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 16:07:19,185 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 16:07:19,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:07:19,186 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:07:19,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:07:19,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:07:19,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 16:07:19,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 16:07:19,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 16:07:19,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:07:19,187 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 16:07:19,188 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:07:19,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 16:07:19,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:07:19,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:07:19,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:07:19,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:07:19,190 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 16:07:19,190 INFO L138 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_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 759adb73d7cf84e38b053793a18c9790a1be4e7fcbaa9f1ea135fb0a39711b48 [2022-11-21 16:07:19,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:07:19,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:07:19,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:07:19,524 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:07:19,527 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:07:19,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c [2022-11-21 16:07:22,643 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:07:22,890 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:07:22,890 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c [2022-11-21 16:07:22,896 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/data/8e5f02846/d5b01531c3d049fe8b7347e363eadc0b/FLAG7bb1fd959 [2022-11-21 16:07:22,911 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/data/8e5f02846/d5b01531c3d049fe8b7347e363eadc0b [2022-11-21 16:07:22,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:07:22,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:07:22,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:07:22,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:07:22,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:07:22,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:07:22" (1/1) ... [2022-11-21 16:07:22,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6917b135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:22, skipping insertion in model container [2022-11-21 16:07:22,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:07:22" (1/1) ... [2022-11-21 16:07:22,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:07:22,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:07:23,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:07:23,090 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:07:23,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:07:23,112 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:07:23,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23 WrapperNode [2022-11-21 16:07:23,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:07:23,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:07:23,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:07:23,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:07:23,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,146 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-11-21 16:07:23,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:07:23,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:07:23,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:07:23,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:07:23,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,161 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:07:23,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:07:23,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:07:23,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:07:23,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (1/1) ... [2022-11-21 16:07:23,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:23,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:23,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:23,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 16:07:23,240 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2022-11-21 16:07:23,241 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2022-11-21 16:07:23,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:07:23,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:07:23,304 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:07:23,306 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:07:23,417 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:07:23,428 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:07:23,428 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:07:23,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:23 BoogieIcfgContainer [2022-11-21 16:07:23,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:07:23,445 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 16:07:23,445 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 16:07:23,449 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 16:07:23,450 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:07:23,450 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 04:07:22" (1/3) ... [2022-11-21 16:07:23,451 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17f6d12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:07:23, skipping insertion in model container [2022-11-21 16:07:23,451 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:07:23,451 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:23" (2/3) ... [2022-11-21 16:07:23,452 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17f6d12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:07:23, skipping insertion in model container [2022-11-21 16:07:23,452 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:07:23,452 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:23" (3/3) ... [2022-11-21 16:07:23,454 INFO L332 chiAutomizerObserver]: Analyzing ICFG RecursiveMultiplication-1.c [2022-11-21 16:07:23,508 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 16:07:23,509 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 16:07:23,509 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 16:07:23,509 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 16:07:23,509 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 16:07:23,509 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 16:07:23,509 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 16:07:23,509 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 16:07:23,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-21 16:07:23,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-21 16:07:23,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:07:23,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:07:23,543 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-21 16:07:23,543 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 16:07:23,544 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 16:07:23,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-21 16:07:23,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-21 16:07:23,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:07:23,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:07:23,547 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-21 16:07:23,547 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 16:07:23,553 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 13#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~m~0#1, main_~n~0#1, main_~res~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 11#L26true assume !!(-65535 <= main_~m~0#1 && main_~m~0#1 <= 65535); 5#L27true assume !!(-65535 <= main_~n~0#1 && main_~n~0#1 <= 65535); 15#L28true call main_#t~ret4#1 := mult(main_~m~0#1, main_~n~0#1);< 7#multENTRYtrue [2022-11-21 16:07:23,554 INFO L750 eck$LassoCheckResult]: Loop: 7#multENTRYtrue ~n := #in~n;~m := #in~m; 4#L13true assume ~m < 0; 17#L14true call #t~ret0 := mult(~n, -~m);< 7#multENTRYtrue [2022-11-21 16:07:23,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:23,560 INFO L85 PathProgramCache]: Analyzing trace with hash 42056124, now seen corresponding path program 1 times [2022-11-21 16:07:23,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:23,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875702062] [2022-11-21 16:07:23,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:23,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:23,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:23,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:23,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:23,683 INFO L85 PathProgramCache]: Analyzing trace with hash 29916, now seen corresponding path program 1 times [2022-11-21 16:07:23,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:23,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117487765] [2022-11-21 16:07:23,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:23,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:23,710 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:23,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:23,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:23,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1236460223, now seen corresponding path program 1 times [2022-11-21 16:07:23,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:23,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515686581] [2022-11-21 16:07:23,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:23,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:23,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:23,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:23,959 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:07:23,960 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:07:23,960 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:07:23,960 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:07:23,961 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 16:07:23,961 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:23,961 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:07:23,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:07:23,961 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration1_Loop [2022-11-21 16:07:23,962 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:07:23,962 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:07:23,980 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:23,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:23,996 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:23,999 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:24,003 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:24,009 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:24,013 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:24,117 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 16:07:24,118 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 16:07:24,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,124 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-21 16:07:24,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:07:24,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:24,158 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 16:07:24,158 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 16:07:24,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-11-21 16:07:24,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:07:24,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:24,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-21 16:07:24,204 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 16:07:24,204 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 16:07:24,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:24,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,211 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:07:24,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:24,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-21 16:07:24,246 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 16:07:24,247 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 16:07:24,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:24,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,259 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-21 16:07:24,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:07:24,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:24,289 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 16:07:24,289 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 16:07:24,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:24,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,297 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:07:24,307 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:24,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-21 16:07:24,336 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 16:07:24,337 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 16:07:24,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:24,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,343 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-21 16:07:24,346 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:07:24,346 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:24,368 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 16:07:24,369 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 16:07:24,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:24,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,379 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-21 16:07:24,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:07:24,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:24,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:24,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,409 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-21 16:07:24,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 16:07:24,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:24,459 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 16:07:24,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-21 16:07:24,464 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:07:24,464 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:07:24,464 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:07:24,464 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:07:24,465 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 16:07:24,465 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,465 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:07:24,465 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:07:24,465 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration1_Loop [2022-11-21 16:07:24,465 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:07:24,465 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:07:24,467 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:24,474 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:24,479 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:24,486 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:24,493 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:24,500 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:24,507 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:24,573 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 16:07:24,578 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 16:07:24,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,581 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,594 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 [2022-11-21 16:07:24,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-21 16:07:24,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:07:24,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:07:24,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:07:24,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:07:24,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:07:24,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:07:24,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:07:24,621 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:07:24,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:24,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,632 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-21 16:07:24,637 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 [2022-11-21 16:07:24,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:07:24,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:07:24,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:07:24,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:07:24,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:07:24,653 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:07:24,653 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:07:24,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:07:24,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:24,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,687 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-21 16:07:24,693 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 [2022-11-21 16:07:24,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:07:24,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:07:24,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:07:24,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:07:24,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:07:24,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:07:24,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:07:24,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:07:24,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:24,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,734 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,747 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 [2022-11-21 16:07:24,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-21 16:07:24,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:07:24,760 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:07:24,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:07:24,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:07:24,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:07:24,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:07:24,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:07:24,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:07:24,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:24,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,783 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,798 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 [2022-11-21 16:07:24,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-21 16:07:24,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:07:24,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:07:24,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:07:24,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:07:24,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:07:24,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:07:24,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:07:24,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:07:24,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-11-21 16:07:24,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,865 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-21 16:07:24,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 16:07:24,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:07:24,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:07:24,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:07:24,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:07:24,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:07:24,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:07:24,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:07:24,944 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:07:24,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:24,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:24,955 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:24,966 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 [2022-11-21 16:07:24,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-21 16:07:24,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:07:24,977 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:07:24,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:07:24,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:07:24,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:07:24,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:07:24,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:07:24,990 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 16:07:24,995 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-21 16:07:24,995 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-21 16:07:24,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:24,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:25,029 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:25,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-21 16:07:25,032 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 16:07:25,032 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 16:07:25,033 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 16:07:25,033 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2022-11-21 16:07:25,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:25,044 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 16:07:25,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:25,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:07:25,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:07:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:25,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:07:25,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:07:25,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:25,311 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 [2022-11-21 16:07:25,313 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2022-11-21 16:07:25,448 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). 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 47 states and 60 transitions. Complement of second has 12 states. [2022-11-21 16:07:25,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-21 16:07:25,455 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) [2022-11-21 16:07:25,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-21 16:07:25,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-21 16:07:25,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:07:25,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2022-11-21 16:07:25,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:07:25,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 6 letters. [2022-11-21 16:07:25,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:07:25,461 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 60 transitions. [2022-11-21 16:07:25,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-21 16:07:25,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 22 states and 25 transitions. [2022-11-21 16:07:25,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-21 16:07:25,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-11-21 16:07:25,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 25 transitions. [2022-11-21 16:07:25,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 16:07:25,474 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-21 16:07:25,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 25 transitions. [2022-11-21 16:07:25,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2022-11-21 16:07:25,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:25,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2022-11-21 16:07:25,505 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2022-11-21 16:07:25,505 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2022-11-21 16:07:25,505 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 16:07:25,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2022-11-21 16:07:25,506 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-21 16:07:25,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:07:25,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:07:25,507 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:25,507 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 16:07:25,507 INFO L748 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~m~0#1, main_~n~0#1, main_~res~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 136#L26 assume !!(-65535 <= main_~m~0#1 && main_~m~0#1 <= 65535); 130#L27 assume !!(-65535 <= main_~n~0#1 && main_~n~0#1 <= 65535); 126#L28 call main_#t~ret4#1 := mult(main_~m~0#1, main_~n~0#1);< 131#multENTRY ~n := #in~n;~m := #in~m; 125#L13 assume !(~m < 0); 127#L16 [2022-11-21 16:07:25,507 INFO L750 eck$LassoCheckResult]: Loop: 127#L16 assume !(0 == ~m); 133#L19 call #t~ret1 := mult(~n, ~m - 1);< 135#multENTRY ~n := #in~n;~m := #in~m; 137#L13 assume !(~m < 0); 127#L16 [2022-11-21 16:07:25,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:25,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1761229506, now seen corresponding path program 1 times [2022-11-21 16:07:25,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:25,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233456558] [2022-11-21 16:07:25,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:25,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:25,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:25,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:25,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:25,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1254111, now seen corresponding path program 1 times [2022-11-21 16:07:25,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:25,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409448136] [2022-11-21 16:07:25,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:25,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:25,528 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:25,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:25,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:25,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1744825056, now seen corresponding path program 1 times [2022-11-21 16:07:25,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:25,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607573636] [2022-11-21 16:07:25,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:25,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:25,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:25,551 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:25,653 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:07:25,653 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:07:25,653 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:07:25,653 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:07:25,653 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 16:07:25,653 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:25,653 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:07:25,653 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:07:25,654 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration2_Loop [2022-11-21 16:07:25,654 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:07:25,654 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:07:25,655 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:25,658 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:25,660 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:25,663 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:25,671 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:25,726 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 16:07:25,726 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 16:07:25,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:25,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:25,728 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:25,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-21 16:07:25,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:07:25,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:25,764 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 16:07:25,764 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 16:07:25,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:25,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:25,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:25,775 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:25,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:07:25,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:25,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-21 16:07:25,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 16:07:25,812 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 16:07:25,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:25,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:25,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:25,817 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:25,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-21 16:07:25,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:07:25,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:25,834 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 16:07:25,834 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 16:07:25,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:25,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:25,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:25,839 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:25,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-21 16:07:25,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:07:25,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:25,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:25,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:25,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:25,878 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:25,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-21 16:07:25,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 16:07:25,885 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:29,566 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 16:07:29,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:29,571 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:07:29,571 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:07:29,571 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:07:29,571 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:07:29,571 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 16:07:29,571 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:29,571 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:07:29,571 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:07:29,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration2_Loop [2022-11-21 16:07:29,571 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:07:29,571 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:07:29,573 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:29,578 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:29,582 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:29,587 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:29,602 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:29,676 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 16:07:29,676 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 16:07:29,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:29,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:29,678 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:29,686 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 [2022-11-21 16:07:29,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-21 16:07:29,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:07:29,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:07:29,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:07:29,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:07:29,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:07:29,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:07:29,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:07:29,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:07:29,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:29,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:29,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:29,727 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:29,733 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 [2022-11-21 16:07:29,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-21 16:07:29,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:07:29,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:07:29,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:07:29,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:07:29,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:07:29,749 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:07:29,749 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:07:29,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:07:29,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:29,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:29,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:29,775 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:29,781 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 [2022-11-21 16:07:29,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-21 16:07:29,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:07:29,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:07:29,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:07:29,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:07:29,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:07:29,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:07:29,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:07:29,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:07:29,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:29,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:29,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:29,813 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:29,817 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 [2022-11-21 16:07:29,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-21 16:07:29,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:07:29,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:07:29,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:07:29,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:07:29,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:07:29,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:07:29,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:07:29,860 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 16:07:29,865 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-21 16:07:29,865 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-21 16:07:29,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:29,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:29,872 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:29,873 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 16:07:29,873 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 16:07:29,874 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 16:07:29,874 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_~m) = 1*mult_~m Supporting invariants [] [2022-11-21 16:07:29,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-21 16:07:29,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:29,880 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 16:07:29,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:29,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:07:29,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:07:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:29,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:07:29,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:07:30,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:30,026 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 [2022-11-21 16:07:30,026 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-11-21 16:07:30,095 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) Result 27 states and 32 transitions. Complement of second has 13 states. [2022-11-21 16:07:30,098 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 [2022-11-21 16:07:30,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-11-21 16:07:30,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2022-11-21 16:07:30,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 7 letters. Loop has 4 letters. [2022-11-21 16:07:30,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:07:30,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 11 letters. Loop has 4 letters. [2022-11-21 16:07:30,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:07:30,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 7 letters. Loop has 8 letters. [2022-11-21 16:07:30,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:07:30,102 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2022-11-21 16:07:30,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-21 16:07:30,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 26 states and 31 transitions. [2022-11-21 16:07:30,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-21 16:07:30,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-21 16:07:30,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 31 transitions. [2022-11-21 16:07:30,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 16:07:30,105 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-21 16:07:30,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 31 transitions. [2022-11-21 16:07:30,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2022-11-21 16:07:30,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:30,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-11-21 16:07:30,112 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-21 16:07:30,112 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-21 16:07:30,112 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-21 16:07:30,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2022-11-21 16:07:30,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-21 16:07:30,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:07:30,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:07:30,117 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:30,117 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 16:07:30,117 INFO L748 eck$LassoCheckResult]: Stem: 230#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 231#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~ret4#1, main_~m~0#1, main_~n~0#1, main_~res~0#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 246#L26 assume !!(-65535 <= main_~m~0#1 && main_~m~0#1 <= 65535); 238#L27 assume !!(-65535 <= main_~n~0#1 && main_~n~0#1 <= 65535); 239#L28 call main_#t~ret4#1 := mult(main_~m~0#1, main_~n~0#1);< 244#multENTRY ~n := #in~n;~m := #in~m; 250#L13 assume !(~m < 0); 251#L16 assume !(0 == ~m); 233#L19 call #t~ret1 := mult(~n, ~m - 1);< 252#multENTRY ~n := #in~n;~m := #in~m; 232#L13 assume ~m < 0; 234#L14 [2022-11-21 16:07:30,118 INFO L750 eck$LassoCheckResult]: Loop: 234#L14 call #t~ret0 := mult(~n, -~m);< 240#multENTRY ~n := #in~n;~m := #in~m; 242#L13 assume ~m < 0; 234#L14 [2022-11-21 16:07:30,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:30,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1744825059, now seen corresponding path program 1 times [2022-11-21 16:07:30,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:30,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462793233] [2022-11-21 16:07:30,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:30,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:30,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:30,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:30,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462793233] [2022-11-21 16:07:30,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462793233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:30,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:30,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:07:30,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517048262] [2022-11-21 16:07:30,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:30,238 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 16:07:30,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:30,239 INFO L85 PathProgramCache]: Analyzing trace with hash 60546, now seen corresponding path program 2 times [2022-11-21 16:07:30,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:30,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900199910] [2022-11-21 16:07:30,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:30,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:30,244 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:30,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:30,394 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:07:30,394 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:07:30,395 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:07:30,395 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:07:30,395 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 16:07:30,395 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:30,395 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:07:30,395 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:07:30,395 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration3_Loop [2022-11-21 16:07:30,396 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:07:30,396 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:07:30,397 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:30,404 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:30,419 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:30,422 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:30,425 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:30,473 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 16:07:30,474 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 16:07:30,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:30,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:30,498 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:30,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-21 16:07:30,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:07:30,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:30,609 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 16:07:30,609 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=-6, mult_#in~n=-6} Honda state: {mult_~n=-6, mult_#in~n=-6} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 16:07:30,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:30,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:30,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:30,631 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:30,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 16:07:30,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:30,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-21 16:07:30,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:30,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:30,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:30,690 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:30,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 16:07:30,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 16:07:30,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-21 16:07:31,525 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 16:07:31,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:31,529 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 16:07:31,529 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 16:07:31,529 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 16:07:31,546 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 16:07:31,546 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 16:07:31,546 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:31,547 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 16:07:31,547 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 16:07:31,547 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration3_Loop [2022-11-21 16:07:31,547 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 16:07:31,547 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 16:07:31,548 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:31,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:31,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:31,560 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:31,568 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:31,576 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:31,579 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 16:07:31,651 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 16:07:31,651 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 16:07:31,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:31,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:31,653 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:31,661 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 [2022-11-21 16:07:31,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-21 16:07:31,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:07:31,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:07:31,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:07:31,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:07:31,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:07:31,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:07:31,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:07:31,692 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 16:07:31,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:31,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:31,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:31,698 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:31,705 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 [2022-11-21 16:07:31,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-21 16:07:31,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 16:07:31,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 16:07:31,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 16:07:31,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 16:07:31,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 16:07:31,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 16:07:31,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 16:07:31,746 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 16:07:31,751 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-21 16:07:31,751 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-21 16:07:31,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:31,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:31,757 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:31,765 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 16:07:31,765 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 16:07:31,765 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 16:07:31,765 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_~m) = 1*mult_~m Supporting invariants [] [2022-11-21 16:07:31,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-21 16:07:31,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:31,776 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 16:07:31,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:31,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:07:31,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:07:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:31,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:07:31,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:07:31,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:31,900 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 [2022-11-21 16:07:31,900 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 8 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-21 16:07:31,939 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 8. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 52 states and 62 transitions. Complement of second has 9 states. [2022-11-21 16:07:31,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-21 16:07:31,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-21 16:07:31,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-11-21 16:07:31,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2022-11-21 16:07:31,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:07:31,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2022-11-21 16:07:31,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:07:31,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 6 letters. [2022-11-21 16:07:31,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 16:07:31,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 62 transitions. [2022-11-21 16:07:31,944 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-21 16:07:31,946 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 45 states and 55 transitions. [2022-11-21 16:07:31,946 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-21 16:07:31,946 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-11-21 16:07:31,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 55 transitions. [2022-11-21 16:07:31,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 16:07:31,947 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 55 transitions. [2022-11-21 16:07:31,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 55 transitions. [2022-11-21 16:07:31,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2022-11-21 16:07:31,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 10 states have call successors, (13), 10 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:07:31,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2022-11-21 16:07:31,958 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-11-21 16:07:31,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:31,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:07:31,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:07:31,963 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-11-21 16:07:32,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:07:32,017 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-11-21 16:07:32,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 36 transitions. [2022-11-21 16:07:32,018 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 16:07:32,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2022-11-21 16:07:32,019 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-21 16:07:32,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-21 16:07:32,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-21 16:07:32,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:32,019 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:07:32,020 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:07:32,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:07:32,021 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:07:32,021 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-21 16:07:32,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:07:32,022 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 16:07:32,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-21 16:07:32,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 04:07:32 BoogieIcfgContainer [2022-11-21 16:07:32,031 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 16:07:32,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:07:32,032 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:07:32,032 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:07:32,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:23" (3/4) ... [2022-11-21 16:07:32,036 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:07:32,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:07:32,037 INFO L158 Benchmark]: Toolchain (without parser) took 9121.44ms. Allocated memory is still 174.1MB. Free memory was 145.0MB in the beginning and 121.3MB in the end (delta: 23.6MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-11-21 16:07:32,038 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 121.6MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:07:32,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.25ms. Allocated memory is still 174.1MB. Free memory was 145.0MB in the beginning and 135.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 16:07:32,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.60ms. Allocated memory is still 174.1MB. Free memory was 135.7MB in the beginning and 134.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:07:32,039 INFO L158 Benchmark]: Boogie Preprocessor took 15.58ms. Allocated memory is still 174.1MB. Free memory was 134.2MB in the beginning and 133.4MB in the end (delta: 781.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:07:32,040 INFO L158 Benchmark]: RCFGBuilder took 267.53ms. Allocated memory is still 174.1MB. Free memory was 133.4MB in the beginning and 124.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:07:32,040 INFO L158 Benchmark]: BuchiAutomizer took 8586.55ms. Allocated memory is still 174.1MB. Free memory was 124.0MB in the beginning and 121.3MB in the end (delta: 2.7MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2022-11-21 16:07:32,041 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 174.1MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:07:32,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 121.6MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.25ms. Allocated memory is still 174.1MB. Free memory was 145.0MB in the beginning and 135.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.60ms. Allocated memory is still 174.1MB. Free memory was 135.7MB in the beginning and 134.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.58ms. Allocated memory is still 174.1MB. Free memory was 134.2MB in the beginning and 133.4MB in the end (delta: 781.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 267.53ms. Allocated memory is still 174.1MB. Free memory was 133.4MB in the beginning and 124.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 8586.55ms. Allocated memory is still 174.1MB. Free memory was 124.0MB in the beginning and 121.3MB in the end (delta: 2.7MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 174.1MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * \old(m) and consists of 4 locations. One deterministic module has affine ranking function m and consists of 5 locations. One deterministic module has affine ranking function m and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.5s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 7.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 46 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp71 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf92 smp100 dnf100 smp100 tf110 neg98 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 5.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-21 16:07:32,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-21 16:07:32,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_849685ab-8d73-4ccc-ac4f-cec3c119319f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE