./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/rec_counter1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/rec_counter1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa --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 de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:26:40,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:26:40,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:26:40,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:26:40,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:26:40,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:26:40,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:26:40,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:26:40,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:26:40,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:26:40,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:26:40,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:26:40,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:26:40,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:26:40,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:26:40,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:26:40,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:26:40,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:26:40,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:26:40,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:26:40,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:26:40,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:26:40,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:26:40,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:26:40,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:26:40,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:26:40,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:26:40,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:26:40,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:26:40,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:26:40,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:26:40,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:26:40,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:26:40,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:26:41,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:26:41,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:26:41,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:26:41,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:26:41,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:26:41,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:26:41,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:26:41,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 20:26:41,028 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:26:41,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:26:41,029 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:26:41,029 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:26:41,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:26:41,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:26:41,030 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:26:41,030 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 20:26:41,031 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 20:26:41,031 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 20:26:41,031 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 20:26:41,031 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 20:26:41,031 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 20:26:41,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:26:41,032 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 20:26:41,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:26:41,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:26:41,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 20:26:41,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 20:26:41,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 20:26:41,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:26:41,033 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 20:26:41,033 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:26:41,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 20:26:41,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:26:41,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:26:41,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:26:41,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:26:41,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:26:41,036 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 20:26:41,036 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_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b [2021-12-06 20:26:41,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:26:41,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:26:41,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:26:41,265 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:26:41,265 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:26:41,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-numeric/rec_counter1.c [2021-12-06 20:26:41,307 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/data/5f790dc67/96e60efec39745ca841e60afe2342a90/FLAGf051d0952 [2021-12-06 20:26:41,657 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:26:41,657 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/sv-benchmarks/c/termination-numeric/rec_counter1.c [2021-12-06 20:26:41,662 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/data/5f790dc67/96e60efec39745ca841e60afe2342a90/FLAGf051d0952 [2021-12-06 20:26:41,673 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/data/5f790dc67/96e60efec39745ca841e60afe2342a90 [2021-12-06 20:26:41,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:26:41,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:26:41,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:26:41,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:26:41,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:26:41,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:26:41" (1/1) ... [2021-12-06 20:26:41,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a50a27f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:41, skipping insertion in model container [2021-12-06 20:26:41,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:26:41" (1/1) ... [2021-12-06 20:26:41,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:26:41,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:26:41,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:26:41,799 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:26:41,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:26:41,817 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:26:41,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:41 WrapperNode [2021-12-06 20:26:41,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:26:41,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:26:41,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:26:41,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:26:41,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:41" (1/1) ... [2021-12-06 20:26:41,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:41" (1/1) ... [2021-12-06 20:26:41,839 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10 [2021-12-06 20:26:41,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:26:41,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:26:41,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:26:41,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:26:41,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:41" (1/1) ... [2021-12-06 20:26:41,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:41" (1/1) ... [2021-12-06 20:26:41,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:41" (1/1) ... [2021-12-06 20:26:41,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:41" (1/1) ... [2021-12-06 20:26:41,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:41" (1/1) ... [2021-12-06 20:26:41,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:41" (1/1) ... [2021-12-06 20:26:41,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:41" (1/1) ... [2021-12-06 20:26:41,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:26:41,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:26:41,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:26:41,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:26:41,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:41" (1/1) ... [2021-12-06 20:26:41,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:41,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:41,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:41,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 20:26:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2021-12-06 20:26:41,923 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2021-12-06 20:26:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:26:41,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:26:41,970 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:26:41,971 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:26:42,028 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:26:42,034 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:26:42,034 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 20:26:42,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:26:42 BoogieIcfgContainer [2021-12-06 20:26:42,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:26:42,036 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 20:26:42,036 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 20:26:42,039 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 20:26:42,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:26:42,039 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 08:26:41" (1/3) ... [2021-12-06 20:26:42,040 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@692ef6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 08:26:42, skipping insertion in model container [2021-12-06 20:26:42,040 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:26:42,040 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:26:41" (2/3) ... [2021-12-06 20:26:42,041 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@692ef6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 08:26:42, skipping insertion in model container [2021-12-06 20:26:42,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:26:42,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:26:42" (3/3) ... [2021-12-06 20:26:42,042 INFO L388 chiAutomizerObserver]: Analyzing ICFG rec_counter1.c [2021-12-06 20:26:42,085 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 20:26:42,085 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 20:26:42,085 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 20:26:42,085 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 20:26:42,086 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 20:26:42,086 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 20:26:42,086 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 20:26:42,086 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 20:26:42,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:26:42,138 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-06 20:26:42,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:26:42,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:26:42,145 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 20:26:42,145 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 20:26:42,145 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 20:26:42,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:26:42,147 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-06 20:26:42,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:26:42,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:26:42,148 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 20:26:42,148 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 20:26:42,153 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 9#L18true assume !(main_~i~0#1 <= 0); 16#L20true call main_#t~ret3#1 := rec(main_~i~0#1);< 12#recENTRYtrue [2021-12-06 20:26:42,153 INFO L793 eck$LassoCheckResult]: Loop: 12#recENTRYtrue ~a := #in~a; 6#L5true assume !(0 == ~a); 11#L8true call #t~ret0 := rec(~a - 1);< 12#recENTRYtrue [2021-12-06 20:26:42,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:42,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1572139, now seen corresponding path program 1 times [2021-12-06 20:26:42,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:42,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115229564] [2021-12-06 20:26:42,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:42,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:42,224 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:42,238 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:42,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:42,241 INFO L85 PathProgramCache]: Analyzing trace with hash 29949, now seen corresponding path program 1 times [2021-12-06 20:26:42,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:42,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495906282] [2021-12-06 20:26:42,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:42,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:42,246 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:42,250 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:42,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:42,252 INFO L85 PathProgramCache]: Analyzing trace with hash -409047149, now seen corresponding path program 1 times [2021-12-06 20:26:42,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:42,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79790923] [2021-12-06 20:26:42,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:42,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:42,259 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:42,264 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:42,336 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:42,337 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:42,337 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:42,337 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:42,337 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:26:42,337 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,337 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:42,337 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:42,337 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Loop [2021-12-06 20:26:42,337 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:42,338 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:42,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,415 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:42,416 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:26:42,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 20:26:42,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,437 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,437 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:42,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:42,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,459 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 20:26:42,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,460 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,469 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,469 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:42,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 20:26:42,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,489 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 20:26:42,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,499 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,499 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:42,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 20:26:42,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,520 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 20:26:42,521 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,521 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,529 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,530 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:42,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 20:26:42,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,561 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 20:26:42,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,563 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,571 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,571 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:42,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 20:26:42,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,592 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 20:26:42,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:42,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,623 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 20:26:42,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:42,625 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,651 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,651 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#in~a=-1} Honda state: {rec_#in~a=-1} Generalized eigenvectors: [{rec_#in~a=-1}, {rec_#in~a=0}, {rec_#in~a=0}] Lambdas: [1, 3, 15] Nus: [0, 1] [2021-12-06 20:26:42,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 20:26:42,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,672 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 20:26:42,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,673 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,682 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,682 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:42,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:42,718 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:42,718 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:42,719 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:42,719 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:42,719 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:26:42,719 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,719 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:42,719 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:42,719 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Lasso [2021-12-06 20:26:42,719 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:42,719 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:42,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:42,780 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:42,780 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:26:42,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,781 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 20:26:42,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,791 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,791 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:42,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 20:26:42,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,811 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 20:26:42,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,821 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,821 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:42,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:42,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,842 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 20:26:42,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,852 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,852 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=0} Honda state: {ULTIMATE.start_main_~i~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:42,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 20:26:42,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,871 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 20:26:42,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,881 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,881 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:42,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:42,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,901 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 20:26:42,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,902 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,910 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,911 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:42,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 20:26:42,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,930 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 20:26:42,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,940 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,940 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~1#1=0} Honda state: {ULTIMATE.start_main_~res~1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:42,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 20:26:42,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,960 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 20:26:42,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,969 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,969 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:42,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 20:26:42,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:42,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:42,988 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:42,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 20:26:42,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:42,990 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:42,998 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:42,998 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_#t~ret4#1=0} Honda state: {ULTIMATE.start_#t~ret4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:43,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 20:26:43,017 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,017 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 20:26:43,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:43,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:43,027 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:43,027 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:43,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:43,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,046 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 20:26:43,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:43,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:43,056 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:43,056 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret3#1=0} Honda state: {ULTIMATE.start_main_#t~ret3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:43,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 20:26:43,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,076 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 20:26:43,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:43,077 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:43,086 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:43,086 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:43,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 20:26:43,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,105 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 20:26:43,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:43,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:43,116 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:26:43,116 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:26:43,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:43,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,136 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 20:26:43,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:43,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:43,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 20:26:43,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,166 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 20:26:43,167 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:43,167 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:43,211 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 20:26:43,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 20:26:43,214 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:43,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:43,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:43,214 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:43,214 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 20:26:43,214 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,214 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:43,214 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:43,214 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Lasso [2021-12-06 20:26:43,214 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:43,214 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:43,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:43,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:43,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:43,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:43,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:43,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:43,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:43,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:43,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:43,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:43,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:43,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:43,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:43,275 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:43,278 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 20:26:43,279 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,280 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 20:26:43,285 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 [2021-12-06 20:26:43,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:43,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:43,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:43,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:43,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:43,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:43,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:43,298 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:43,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 20:26:43,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,320 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 20:26:43,322 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 [2021-12-06 20:26:43,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:43,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:43,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:43,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:43,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:43,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:43,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:43,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:43,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 20:26:43,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,351 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 20:26:43,352 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 [2021-12-06 20:26:43,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:43,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:43,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:43,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:43,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:43,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:43,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:43,362 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:43,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:43,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,381 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-06 20:26:43,383 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 [2021-12-06 20:26:43,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:43,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:43,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:43,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:43,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:43,392 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:43,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:43,393 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:43,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-06 20:26:43,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,412 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-06 20:26:43,414 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 [2021-12-06 20:26:43,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:43,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:43,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:43,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:43,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:43,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:43,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:43,424 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:43,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-06 20:26:43,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,444 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-06 20:26:43,445 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 [2021-12-06 20:26:43,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:43,452 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:43,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:43,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:43,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:43,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:43,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:43,455 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:43,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-06 20:26:43,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,474 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-06 20:26:43,476 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 [2021-12-06 20:26:43,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:43,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:43,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:43,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:43,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:43,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:43,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:43,486 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:43,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-06 20:26:43,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,505 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-06 20:26:43,507 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 [2021-12-06 20:26:43,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:43,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:43,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:43,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:43,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:43,516 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:43,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:43,517 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:43,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-06 20:26:43,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,536 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-06 20:26:43,539 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 [2021-12-06 20:26:43,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:43,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:43,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:43,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:43,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:43,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:43,547 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:43,548 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:43,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-06 20:26:43,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,568 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-06 20:26:43,570 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 [2021-12-06 20:26:43,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:43,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:43,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:43,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:43,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:43,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:43,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:43,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:43,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-06 20:26:43,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,599 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-06 20:26:43,600 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 [2021-12-06 20:26:43,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:43,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:43,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:43,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:43,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:43,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:43,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:43,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:43,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-06 20:26:43,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,633 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-06 20:26:43,640 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 [2021-12-06 20:26:43,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:43,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:43,648 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 20:26:43,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:43,655 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-06 20:26:43,655 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-06 20:26:43,666 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 20:26:43,680 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-12-06 20:26:43,680 INFO L444 ModelExtractionUtils]: 3 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-12-06 20:26:43,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:43,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:43,682 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:43,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-06 20:26:43,685 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 20:26:43,697 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-12-06 20:26:43,697 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 20:26:43,698 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_#in~a) = 1*rec_#in~a Supporting invariants [1*rec_#in~a >= 0] [2021-12-06 20:26:43,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-12-06 20:26:43,721 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-12-06 20:26:43,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:43,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:26:43,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:43,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 20:26:43,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:43,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:26:43,834 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-12-06 20:26:43,835 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-12-06 20:26:43,906 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 34 states and 40 transitions. Complement of second has 13 states. [2021-12-06 20:26:43,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 20:26:43,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-12-06 20:26:43,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-12-06 20:26:43,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2021-12-06 20:26:43,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:43,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-06 20:26:43,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:43,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2021-12-06 20:26:43,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:43,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2021-12-06 20:26:43,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 20:26:43,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 18 states and 23 transitions. [2021-12-06 20:26:43,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-06 20:26:43,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-12-06 20:26:43,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2021-12-06 20:26:43,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:26:43,922 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-06 20:26:43,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2021-12-06 20:26:43,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2021-12-06 20:26:43,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:26:43,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-12-06 20:26:43,941 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-12-06 20:26:43,941 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-12-06 20:26:43,941 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 20:26:43,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2021-12-06 20:26:43,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 20:26:43,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:26:43,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:26:43,943 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:26:43,943 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 20:26:43,943 INFO L791 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~ret3#1, main_~i~0#1, main_~res~1#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 118#L18 assume !(main_~i~0#1 <= 0); 119#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 126#recENTRY ~a := #in~a; 127#L5 assume !(0 == ~a); 121#L8 call #t~ret0 := rec(~a - 1);< 125#recENTRY ~a := #in~a; 128#L5 assume 0 == ~a;#res := 0; 129#recFINAL assume true; 131#recEXIT >#35#return; 120#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 122#L10-2 [2021-12-06 20:26:43,943 INFO L793 eck$LassoCheckResult]: Loop: 122#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 122#L10-2 [2021-12-06 20:26:43,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:43,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1880555327, now seen corresponding path program 1 times [2021-12-06 20:26:43,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:43,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264363107] [2021-12-06 20:26:43,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:43,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:43,949 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:43,955 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:43,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:43,955 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2021-12-06 20:26:43,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:43,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994771173] [2021-12-06 20:26:43,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:43,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:43,958 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:43,960 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:43,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:43,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1832327022, now seen corresponding path program 1 times [2021-12-06 20:26:43,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:43,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802333329] [2021-12-06 20:26:43,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:43,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:43,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:26:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:44,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 20:26:44,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:26:44,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802333329] [2021-12-06 20:26:44,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802333329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:26:44,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:26:44,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:26:44,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126050946] [2021-12-06 20:26:44,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:26:44,016 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:44,016 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:44,016 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:44,016 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:44,016 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:26:44,016 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:44,016 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:44,016 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:44,016 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration2_Loop [2021-12-06 20:26:44,016 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:44,017 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:44,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:44,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:44,029 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:44,029 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:26:44,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:44,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:44,030 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:44,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-06 20:26:44,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:44,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:44,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-06 20:26:44,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:44,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:44,059 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:44,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-06 20:26:44,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:44,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:44,093 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 20:26:44,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-06 20:26:44,095 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:44,095 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:44,095 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:44,096 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:44,096 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 20:26:44,096 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:44,096 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:44,096 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:44,096 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration2_Loop [2021-12-06 20:26:44,096 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:44,096 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:44,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:44,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:44,110 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:44,111 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 20:26:44,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:44,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:44,112 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:44,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-06 20:26:44,113 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 [2021-12-06 20:26:44,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:44,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:44,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:44,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:44,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:44,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:44,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:44,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:26:44,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:44,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:44,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:44,152 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:44,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-06 20:26:44,174 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 [2021-12-06 20:26:44,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:44,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:44,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:44,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:44,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:44,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:44,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:44,184 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 20:26:44,187 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-12-06 20:26:44,187 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 20:26:44,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:44,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:44,188 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:44,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-06 20:26:44,189 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 20:26:44,189 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 20:26:44,189 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 20:26:44,189 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2021-12-06 20:26:44,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-12-06 20:26:44,208 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 20:26:44,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:44,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:26:44,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:44,296 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:26:44,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:44,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:26:44,297 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-12-06 20:26:44,297 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:26:44,320 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 46 states and 65 transitions. Complement of second has 12 states. [2021-12-06 20:26:44,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 20:26:44,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:26:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2021-12-06 20:26:44,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 12 letters. Loop has 1 letters. [2021-12-06 20:26:44,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:44,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 13 letters. Loop has 1 letters. [2021-12-06 20:26:44,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:44,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 12 letters. Loop has 2 letters. [2021-12-06 20:26:44,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:44,324 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 65 transitions. [2021-12-06 20:26:44,326 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 20:26:44,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 24 states and 31 transitions. [2021-12-06 20:26:44,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-12-06 20:26:44,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-06 20:26:44,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2021-12-06 20:26:44,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:26:44,328 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-12-06 20:26:44,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2021-12-06 20:26:44,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2021-12-06 20:26:44,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 20:26:44,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2021-12-06 20:26:44,330 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-12-06 20:26:44,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:26:44,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:26:44,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:26:44,333 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 20:26:44,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:26:44,343 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2021-12-06 20:26:44,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:26:44,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2021-12-06 20:26:44,345 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 20:26:44,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 23 transitions. [2021-12-06 20:26:44,346 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-06 20:26:44,346 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-06 20:26:44,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2021-12-06 20:26:44,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:26:44,346 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-12-06 20:26:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2021-12-06 20:26:44,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-06 20:26:44,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-06 20:26:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-12-06 20:26:44,348 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-12-06 20:26:44,348 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-12-06 20:26:44,348 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 20:26:44,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2021-12-06 20:26:44,349 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 20:26:44,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:26:44,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:26:44,350 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:26:44,350 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 20:26:44,350 INFO L791 eck$LassoCheckResult]: Stem: 301#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 302#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 295#L18 assume !(main_~i~0#1 <= 0); 296#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 304#recENTRY ~a := #in~a; 305#L5 assume !(0 == ~a); 298#L8 call #t~ret0 := rec(~a - 1);< 303#recENTRY ~a := #in~a; 307#L5 assume !(0 == ~a); 299#L8 call #t~ret0 := rec(~a - 1);< 303#recENTRY ~a := #in~a; 306#L5 assume 0 == ~a;#res := 0; 310#recFINAL assume true; 313#recEXIT >#35#return; 314#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 308#L10-2 assume !(~rescopy~0 > 0); 309#L10-3 #res := 1 + ~res~0; 312#recFINAL assume true; 311#recEXIT >#35#return; 297#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 300#L10-2 [2021-12-06 20:26:44,350 INFO L793 eck$LassoCheckResult]: Loop: 300#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 300#L10-2 [2021-12-06 20:26:44,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:44,350 INFO L85 PathProgramCache]: Analyzing trace with hash -873780632, now seen corresponding path program 1 times [2021-12-06 20:26:44,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:44,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601313065] [2021-12-06 20:26:44,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:44,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:44,359 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:44,370 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:44,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:44,370 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 2 times [2021-12-06 20:26:44,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:44,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342283423] [2021-12-06 20:26:44,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:44,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:44,373 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:44,374 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:44,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:44,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1317395801, now seen corresponding path program 1 times [2021-12-06 20:26:44,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:26:44,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017404142] [2021-12-06 20:26:44,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:26:44,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:26:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:44,384 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:26:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:26:44,394 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:26:44,402 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:44,402 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:44,402 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:44,402 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:44,402 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:26:44,402 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:44,402 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:44,402 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:44,402 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration3_Loop [2021-12-06 20:26:44,402 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:44,402 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:44,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:44,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:44,414 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:44,415 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:26:44,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:44,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:44,415 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:44,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-06 20:26:44,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:26:44,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:44,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-12-06 20:26:44,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:44,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:44,460 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:44,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-06 20:26:44,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:26:44,461 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:26:44,492 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 20:26:44,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-06 20:26:44,495 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:26:44,495 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:26:44,495 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:26:44,495 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:26:44,495 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 20:26:44,495 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:44,495 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:26:44,495 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:26:44,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration3_Loop [2021-12-06 20:26:44,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:26:44,496 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:26:44,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:44,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:26:44,508 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:26:44,509 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 20:26:44,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:44,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:44,509 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:44,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-06 20:26:44,511 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 [2021-12-06 20:26:44,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:26:44,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:26:44,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:26:44,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:26:44,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:26:44,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:26:44,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:26:44,521 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 20:26:44,523 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-12-06 20:26:44,524 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 20:26:44,524 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:26:44,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:26:44,525 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:26:44,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-06 20:26:44,526 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 20:26:44,526 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 20:26:44,526 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 20:26:44,526 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2021-12-06 20:26:44,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-12-06 20:26:44,545 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 20:26:44,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:44,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 20:26:44,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:44,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-06 20:26:44,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-12-06 20:26:44,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-12-06 20:26:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:44,725 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:26:44,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:44,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:26:44,726 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-12-06 20:26:44,726 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:26:44,748 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 26 states and 30 transitions. Complement of second has 7 states. [2021-12-06 20:26:44,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 20:26:44,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:26:44,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-06 20:26:44,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 20 letters. Loop has 1 letters. [2021-12-06 20:26:44,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:44,750 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 20:26:44,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:44,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 20:26:44,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:44,889 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:26:44,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:44,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:26:44,890 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2021-12-06 20:26:44,890 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:26:44,908 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 26 states and 30 transitions. Complement of second has 7 states. [2021-12-06 20:26:44,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 20:26:44,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:26:44,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-06 20:26:44,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 20 letters. Loop has 1 letters. [2021-12-06 20:26:44,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:44,909 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 20:26:44,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:26:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:44,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 20:26:44,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:26:45,051 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:26:45,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:26:45,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:26:45,052 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-12-06 20:26:45,052 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:26:45,071 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 33 states and 41 transitions. Complement of second has 9 states. [2021-12-06 20:26:45,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 20:26:45,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 20:26:45,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2021-12-06 20:26:45,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 20 letters. Loop has 1 letters. [2021-12-06 20:26:45,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:45,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 21 letters. Loop has 1 letters. [2021-12-06 20:26:45,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:45,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 20 letters. Loop has 2 letters. [2021-12-06 20:26:45,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:26:45,073 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 41 transitions. [2021-12-06 20:26:45,074 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 20:26:45,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2021-12-06 20:26:45,074 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 20:26:45,074 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 20:26:45,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 20:26:45,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:26:45,074 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:26:45,074 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:26:45,075 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:26:45,075 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 20:26:45,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 20:26:45,075 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 20:26:45,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 20:26:45,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 08:26:45 BoogieIcfgContainer [2021-12-06 20:26:45,080 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 20:26:45,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:26:45,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:26:45,080 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:26:45,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:26:42" (3/4) ... [2021-12-06 20:26:45,082 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 20:26:45,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:26:45,083 INFO L158 Benchmark]: Toolchain (without parser) took 3405.67ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 108.6MB in the beginning and 89.1MB in the end (delta: 19.5MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2021-12-06 20:26:45,083 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 146.8MB. Free memory was 125.0MB in the beginning and 124.9MB in the end (delta: 137.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:26:45,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 138.85ms. Allocated memory is still 146.8MB. Free memory was 108.3MB in the beginning and 99.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 20:26:45,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.10ms. Allocated memory is still 146.8MB. Free memory was 99.6MB in the beginning and 98.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:26:45,084 INFO L158 Benchmark]: Boogie Preprocessor took 12.34ms. Allocated memory is still 146.8MB. Free memory was 98.3MB in the beginning and 97.4MB in the end (delta: 892.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:26:45,084 INFO L158 Benchmark]: RCFGBuilder took 182.59ms. Allocated memory is still 146.8MB. Free memory was 97.4MB in the beginning and 88.5MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 20:26:45,085 INFO L158 Benchmark]: BuchiAutomizer took 3043.71ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 88.5MB in the beginning and 89.1MB in the end (delta: -665.3kB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2021-12-06 20:26:45,085 INFO L158 Benchmark]: Witness Printer took 2.41ms. Allocated memory is still 176.2MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:26:45,086 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 146.8MB. Free memory was 125.0MB in the beginning and 124.9MB in the end (delta: 137.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 138.85ms. Allocated memory is still 146.8MB. Free memory was 108.3MB in the beginning and 99.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.10ms. Allocated memory is still 146.8MB. Free memory was 99.6MB in the beginning and 98.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.34ms. Allocated memory is still 146.8MB. Free memory was 98.3MB in the beginning and 97.4MB in the end (delta: 892.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 182.59ms. Allocated memory is still 146.8MB. Free memory was 97.4MB in the beginning and 88.5MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3043.71ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 88.5MB in the beginning and 89.1MB in the end (delta: -665.3kB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Witness Printer took 2.41ms. Allocated memory is still 176.2MB. Free memory is still 89.1MB. 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, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function \old(a) and consists of 5 locations. One deterministic module has affine ranking function rescopy and consists of 5 locations. One nondeterministic module has affine ranking function rescopy 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 3.0s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 2.0s. 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, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 78 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf94 smp100 dnf124 smp100 tf108 neg97 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 64ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 20:26:45,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2e0c20-2e89-4ee6-b6ac-e02f1da1c986/bin/uautomizer-DrprNOufMa/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