./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/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_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/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 32bit --witnessprinter.graph.data.programhash 03931b69e9073178e54f20b91a2b2a66154a89c69758aa4d312927278c5c0104 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:52:19,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:52:19,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:52:19,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:52:19,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:52:19,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:52:19,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:52:19,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:52:19,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:52:19,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:52:19,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:52:19,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:52:19,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:52:19,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:52:19,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:52:19,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:52:20,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:52:20,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:52:20,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:52:20,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:52:20,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:52:20,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:52:20,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:52:20,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:52:20,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:52:20,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:52:20,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:52:20,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:52:20,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:52:20,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:52:20,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:52:20,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:52:20,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:52:20,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:52:20,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:52:20,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:52:20,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:52:20,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:52:20,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:52:20,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:52:20,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:52:20,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 21:52:20,040 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:52:20,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:52:20,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:52:20,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:52:20,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:52:20,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:52:20,041 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:52:20,042 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 21:52:20,042 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 21:52:20,042 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 21:52:20,042 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 21:52:20,042 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 21:52:20,042 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 21:52:20,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:52:20,043 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 21:52:20,043 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 21:52:20,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 21:52:20,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 21:52:20,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:52:20,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 21:52:20,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 21:52:20,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 21:52:20,043 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 21:52:20,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 21:52:20,044 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 21:52:20,044 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:52:20,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 21:52:20,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:52:20,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:52:20,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:52:20,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 21:52:20,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:52:20,045 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 21:52:20,046 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_b5ee964d-6db9-49aa-a75a-0873fc2311b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03931b69e9073178e54f20b91a2b2a66154a89c69758aa4d312927278c5c0104 [2021-12-06 21:52:20,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:52:20,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:52:20,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:52:20,255 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:52:20,256 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:52:20,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2021-12-06 21:52:20,307 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/data/ffba73442/b029173195964a22a889d744e7ce9959/FLAG9f125fdc6 [2021-12-06 21:52:20,757 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:52:20,757 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2021-12-06 21:52:20,762 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/data/ffba73442/b029173195964a22a889d744e7ce9959/FLAG9f125fdc6 [2021-12-06 21:52:20,771 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/data/ffba73442/b029173195964a22a889d744e7ce9959 [2021-12-06 21:52:20,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:52:20,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:52:20,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:52:20,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:52:20,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:52:20,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:52:20" (1/1) ... [2021-12-06 21:52:20,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599b1734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:52:20, skipping insertion in model container [2021-12-06 21:52:20,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:52:20" (1/1) ... [2021-12-06 21:52:20,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:52:20,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:52:20,923 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i[809,822] [2021-12-06 21:52:20,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:52:20,939 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:52:20,951 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i[809,822] [2021-12-06 21:52:20,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:52:20,967 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:52:20,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:52:20 WrapperNode [2021-12-06 21:52:20,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:52:20,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:52:20,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:52:20,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:52:20,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:52:20" (1/1) ... [2021-12-06 21:52:20,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:52:20" (1/1) ... [2021-12-06 21:52:20,990 INFO L137 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2021-12-06 21:52:20,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:52:20,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:52:20,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:52:20,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:52:20,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:52:20" (1/1) ... [2021-12-06 21:52:20,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:52:20" (1/1) ... [2021-12-06 21:52:20,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:52:20" (1/1) ... [2021-12-06 21:52:20,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:52:20" (1/1) ... [2021-12-06 21:52:21,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:52:20" (1/1) ... [2021-12-06 21:52:21,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:52:20" (1/1) ... [2021-12-06 21:52:21,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:52:20" (1/1) ... [2021-12-06 21:52:21,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:52:21,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:52:21,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:52:21,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:52:21,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:52:20" (1/1) ... [2021-12-06 21:52:21,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:21,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:21,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:21,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 21:52:21,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 21:52:21,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 21:52:21,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 21:52:21,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 21:52:21,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:52:21,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:52:21,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 21:52:21,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 21:52:21,107 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:52:21,108 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:52:21,174 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:52:21,178 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:52:21,178 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 21:52:21,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:52:21 BoogieIcfgContainer [2021-12-06 21:52:21,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:52:21,180 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 21:52:21,180 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 21:52:21,183 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 21:52:21,183 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 21:52:21,183 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 09:52:20" (1/3) ... [2021-12-06 21:52:21,184 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56a81d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 09:52:21, skipping insertion in model container [2021-12-06 21:52:21,184 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 21:52:21,184 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:52:20" (2/3) ... [2021-12-06 21:52:21,185 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56a81d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 09:52:21, skipping insertion in model container [2021-12-06 21:52:21,185 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 21:52:21,185 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:52:21" (3/3) ... [2021-12-06 21:52:21,186 INFO L388 chiAutomizerObserver]: Analyzing ICFG array_shadowinit.i [2021-12-06 21:52:21,218 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 21:52:21,218 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 21:52:21,218 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 21:52:21,218 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 21:52:21,218 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 21:52:21,219 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 21:52:21,219 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 21:52:21,219 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 21:52:21,229 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:52:21,241 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-06 21:52:21,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:52:21,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:52:21,246 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 21:52:21,246 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 21:52:21,246 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 21:52:21,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:52:21,248 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-06 21:52:21,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:52:21,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:52:21,248 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 21:52:21,248 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 21:52:21,253 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(19, 2);~N~0 := 0; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~mem2#1, main_~i~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;~N~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 7#L18true assume ~N~0 > 0;havoc main_~i~0#1;havoc main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0#1 := 0;main_~k~0#1 := 0; 12#L23-2true [2021-12-06 21:52:21,253 INFO L793 eck$LassoCheckResult]: Loop: 12#L23-2true assume !!(main_~i~0#1 < ~N~0);call write~int(main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_~i~0#1 := 1 + main_~i~0#1;main_~k~0#1 := 1 + main_~k~0#1; 12#L23-2true [2021-12-06 21:52:21,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:52:21,258 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-12-06 21:52:21,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:52:21,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596154540] [2021-12-06 21:52:21,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:52:21,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:52:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:21,335 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:52:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:21,357 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:52:21,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:52:21,360 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2021-12-06 21:52:21,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:52:21,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60135917] [2021-12-06 21:52:21,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:52:21,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:52:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:21,369 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:52:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:21,377 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:52:21,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:52:21,379 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2021-12-06 21:52:21,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:52:21,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004349850] [2021-12-06 21:52:21,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:52:21,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:52:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:21,398 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:52:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:21,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:52:21,712 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 21:52:21,713 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 21:52:21,713 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 21:52:21,713 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 21:52:21,713 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 21:52:21,713 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:21,713 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 21:52:21,714 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 21:52:21,714 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration1_Lasso [2021-12-06 21:52:21,714 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 21:52:21,714 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 21:52:21,731 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 21:52:21,737 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 21:52:21,738 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 21:52:21,740 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 21:52:21,742 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 21:52:21,743 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 21:52:21,981 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 21:52:21,984 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 21:52:21,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:21,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:21,988 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:21,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 21:52:21,990 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 21:52:21,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:21,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:21,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:21,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:22,003 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:52:22,003 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:52:22,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:22,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 21:52:22,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:22,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:22,028 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:22,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 21:52:22,029 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 21:52:22,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:22,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:52:22,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:22,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:22,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:22,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:52:22,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:52:22,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:22,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 21:52:22,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:22,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:22,060 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:22,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 21:52:22,061 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 21:52:22,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:22,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:22,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:22,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:22,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:52:22,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:52:22,074 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:22,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 21:52:22,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:22,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:22,094 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:22,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 21:52:22,095 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 21:52:22,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:22,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:52:22,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:22,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:22,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:22,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:52:22,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:52:22,104 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:22,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 21:52:22,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:22,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:22,124 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:22,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 21:52:22,125 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 21:52:22,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:22,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:52:22,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:22,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:22,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:22,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:52:22,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:52:22,134 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:22,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-06 21:52:22,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:22,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:22,153 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:22,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 21:52:22,154 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 21:52:22,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:22,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:22,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:22,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:22,169 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:52:22,169 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:52:22,178 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 21:52:22,199 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-12-06 21:52:22,199 INFO L444 ModelExtractionUtils]: 7 out of 19 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-12-06 21:52:22,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:22,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:22,202 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:22,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 21:52:22,203 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 21:52:22,212 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-06 21:52:22,213 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 21:52:22,213 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1) = -3*ULTIMATE.start_main_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1 Supporting invariants [1*ULTIMATE.start_main_~#a~0#1.offset - 3*ULTIMATE.start_main_~i~0#1 + 4*ULTIMATE.start_main_~k~0#1 >= 0] [2021-12-06 21:52:22,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 21:52:22,259 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2021-12-06 21:52:22,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:52:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:52:22,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 21:52:22,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:52:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:52:22,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 21:52:22,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:52:22,312 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 21:52:22,336 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 21:52:22,336 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:52:22,388 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 39 transitions. Complement of second has 6 states. [2021-12-06 21:52:22,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 21:52:22,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 21:52:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:52:22,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2021-12-06 21:52:22,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 1 letters. [2021-12-06 21:52:22,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:52:22,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2021-12-06 21:52:22,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:52:22,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-06 21:52:22,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:52:22,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2021-12-06 21:52:22,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 21:52:22,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 10 states and 13 transitions. [2021-12-06 21:52:22,402 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-06 21:52:22,402 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-06 21:52:22,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-12-06 21:52:22,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:52:22,403 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-06 21:52:22,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-12-06 21:52:22,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-06 21:52:22,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:52:22,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-12-06 21:52:22,422 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-06 21:52:22,422 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-06 21:52:22,422 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 21:52:22,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-12-06 21:52:22,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 21:52:22,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:52:22,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:52:22,423 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-06 21:52:22,423 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 21:52:22,423 INFO L791 eck$LassoCheckResult]: Stem: 113#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(19, 2);~N~0 := 0; 114#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~mem2#1, main_~i~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;~N~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 111#L18 assume ~N~0 > 0;havoc main_~i~0#1;havoc main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0#1 := 0;main_~k~0#1 := 0; 112#L23-2 assume !(main_~i~0#1 < ~N~0); 116#L23-3 main_~i~0#1 := 0; 118#L29-2 [2021-12-06 21:52:22,423 INFO L793 eck$LassoCheckResult]: Loop: 118#L29-2 assume !!(main_~i~0#1 < ~N~0);call main_#t~mem2#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_#t~mem2#1 == main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 115#L13 assume !(0 == __VERIFIER_assert_~cond#1); 110#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1;main_~i~0#1 := 1 + main_~i~0#1; 118#L29-2 [2021-12-06 21:52:22,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:52:22,424 INFO L85 PathProgramCache]: Analyzing trace with hash 28693928, now seen corresponding path program 1 times [2021-12-06 21:52:22,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:52:22,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548645432] [2021-12-06 21:52:22,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:52:22,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:52:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:52:22,472 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 21:52:22,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:52:22,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548645432] [2021-12-06 21:52:22,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548645432] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:52:22,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:52:22,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:52:22,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769210565] [2021-12-06 21:52:22,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:52:22,475 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 21:52:22,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:52:22,476 INFO L85 PathProgramCache]: Analyzing trace with hash 56828, now seen corresponding path program 1 times [2021-12-06 21:52:22,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:52:22,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488038219] [2021-12-06 21:52:22,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:52:22,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:52:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:22,486 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:52:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:22,494 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:52:22,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:52:22,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:52:22,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:52:22,565 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:52:22,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:52:22,576 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-12-06 21:52:22,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:52:22,577 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2021-12-06 21:52:22,577 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 21:52:22,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 10 transitions. [2021-12-06 21:52:22,577 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-06 21:52:22,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-06 21:52:22,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-12-06 21:52:22,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:52:22,578 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-06 21:52:22,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-12-06 21:52:22,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-06 21:52:22,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:52:22,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-12-06 21:52:22,579 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-06 21:52:22,579 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-06 21:52:22,579 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 21:52:22,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2021-12-06 21:52:22,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 21:52:22,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:52:22,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:52:22,580 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-06 21:52:22,580 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 21:52:22,580 INFO L791 eck$LassoCheckResult]: Stem: 139#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(19, 2);~N~0 := 0; 140#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~mem2#1, main_~i~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;~N~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 135#L18 assume ~N~0 > 0;havoc main_~i~0#1;havoc main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0#1 := 0;main_~k~0#1 := 0; 136#L23-2 assume !!(main_~i~0#1 < ~N~0);call write~int(main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_~i~0#1 := 1 + main_~i~0#1;main_~k~0#1 := 1 + main_~k~0#1; 141#L23-2 assume !(main_~i~0#1 < ~N~0); 142#L23-3 main_~i~0#1 := 0; 143#L29-2 [2021-12-06 21:52:22,580 INFO L793 eck$LassoCheckResult]: Loop: 143#L29-2 assume !!(main_~i~0#1 < ~N~0);call main_#t~mem2#1 := read~int(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_#t~mem2#1 == main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 137#L13 assume !(0 == __VERIFIER_assert_~cond#1); 138#L13-3 assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1;main_~i~0#1 := 1 + main_~i~0#1; 143#L29-2 [2021-12-06 21:52:22,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:52:22,581 INFO L85 PathProgramCache]: Analyzing trace with hash 889513522, now seen corresponding path program 1 times [2021-12-06 21:52:22,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:52:22,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404309807] [2021-12-06 21:52:22,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:52:22,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:52:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:22,592 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:52:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:22,603 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:52:22,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:52:22,604 INFO L85 PathProgramCache]: Analyzing trace with hash 56828, now seen corresponding path program 2 times [2021-12-06 21:52:22,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:52:22,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335817102] [2021-12-06 21:52:22,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:52:22,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:52:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:22,610 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:52:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:22,615 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:52:22,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:52:22,616 INFO L85 PathProgramCache]: Analyzing trace with hash -450855381, now seen corresponding path program 1 times [2021-12-06 21:52:22,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:52:22,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000464195] [2021-12-06 21:52:22,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:52:22,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:52:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:22,629 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:52:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:52:22,643 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:52:22,882 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 21:52:22,883 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 21:52:22,883 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 21:52:22,883 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 21:52:22,883 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 21:52:22,883 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:22,883 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 21:52:22,883 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 21:52:22,883 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration3_Lasso [2021-12-06 21:52:22,884 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 21:52:22,884 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 21:52:22,887 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 21:52:22,890 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 21:52:23,005 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 21:52:23,006 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 21:52:23,007 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 21:52:23,009 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 21:52:23,011 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 21:52:23,012 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 21:52:23,152 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 21:52:23,152 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 21:52:23,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:23,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:23,153 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:23,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 21:52:23,155 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 21:52:23,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:23,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:52:23,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:23,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:23,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:23,166 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:52:23,166 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:52:23,168 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:23,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 21:52:23,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:23,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:23,194 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:23,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 21:52:23,195 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 21:52:23,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:23,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:23,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:23,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:23,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:52:23,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:52:23,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:23,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 21:52:23,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:23,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:23,240 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:23,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 21:52:23,242 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 21:52:23,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:23,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:23,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:23,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:23,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:52:23,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:52:23,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:23,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-06 21:52:23,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:23,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:23,277 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:23,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 21:52:23,280 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 21:52:23,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:23,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:23,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:23,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:23,288 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:52:23,288 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:52:23,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:23,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 21:52:23,309 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:23,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:23,310 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:23,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 21:52:23,311 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 21:52:23,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:23,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:23,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:23,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:23,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:52:23,320 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:52:23,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:23,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 21:52:23,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:23,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:23,342 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:23,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 21:52:23,343 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 21:52:23,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:23,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:23,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:23,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:23,352 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:52:23,352 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:52:23,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:23,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 21:52:23,373 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:23,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:23,374 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:23,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 21:52:23,375 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 21:52:23,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:23,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:23,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:23,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:23,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:52:23,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:52:23,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:23,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 21:52:23,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:23,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:23,406 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:23,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 21:52:23,407 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 21:52:23,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:23,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:23,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:23,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:23,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:52:23,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:52:23,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:23,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 21:52:23,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:23,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:23,438 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:23,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 21:52:23,439 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 21:52:23,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:23,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:23,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:23,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:23,449 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:52:23,449 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:52:23,452 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:52:23,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 21:52:23,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:23,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:23,471 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:23,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 21:52:23,472 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 21:52:23,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:52:23,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:52:23,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:52:23,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:52:23,483 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:52:23,483 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:52:23,491 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 21:52:23,507 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-12-06 21:52:23,508 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-12-06 21:52:23,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:52:23,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:52:23,508 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:52:23,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 21:52:23,509 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 21:52:23,517 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 21:52:23,517 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 21:52:23,517 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ~N~0) = -1*ULTIMATE.start_main_~i~0#1 + 1*~N~0 Supporting invariants [] [2021-12-06 21:52:23,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-06 21:52:23,545 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-12-06 21:52:23,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:52:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:52:23,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 21:52:23,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:52:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:52:23,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 21:52:23,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:52:23,581 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 21:52:23,582 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 21:52:23,582 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:52:23,587 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 14 transitions. Complement of second has 4 states. [2021-12-06 21:52:23,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 21:52:23,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:52:23,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-12-06 21:52:23,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-06 21:52:23,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:52:23,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2021-12-06 21:52:23,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:52:23,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 6 letters. [2021-12-06 21:52:23,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:52:23,589 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2021-12-06 21:52:23,590 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 21:52:23,590 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2021-12-06 21:52:23,590 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 21:52:23,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 21:52:23,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 21:52:23,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:52:23,590 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 21:52:23,590 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 21:52:23,590 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 21:52:23,590 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 21:52:23,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 21:52:23,590 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 21:52:23,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 21:52:23,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 09:52:23 BoogieIcfgContainer [2021-12-06 21:52:23,595 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 21:52:23,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 21:52:23,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 21:52:23,596 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 21:52:23,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:52:21" (3/4) ... [2021-12-06 21:52:23,598 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 21:52:23,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 21:52:23,599 INFO L158 Benchmark]: Toolchain (without parser) took 2824.21ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 72.3MB in the beginning and 54.9MB in the end (delta: 17.4MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2021-12-06 21:52:23,599 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:52:23,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.05ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 85.6MB in the end (delta: -13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 21:52:23,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.67ms. Allocated memory is still 109.1MB. Free memory was 85.1MB in the beginning and 83.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 21:52:23,600 INFO L158 Benchmark]: Boogie Preprocessor took 15.15ms. Allocated memory is still 109.1MB. Free memory was 83.9MB in the beginning and 83.0MB in the end (delta: 921.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:52:23,600 INFO L158 Benchmark]: RCFGBuilder took 172.87ms. Allocated memory is still 109.1MB. Free memory was 82.8MB in the beginning and 73.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 21:52:23,601 INFO L158 Benchmark]: BuchiAutomizer took 2415.02ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 73.5MB in the beginning and 54.9MB in the end (delta: 18.5MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2021-12-06 21:52:23,601 INFO L158 Benchmark]: Witness Printer took 2.36ms. Allocated memory is still 132.1MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:52:23,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 192.05ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 85.6MB in the end (delta: -13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.67ms. Allocated memory is still 109.1MB. Free memory was 85.1MB in the beginning and 83.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.15ms. Allocated memory is still 109.1MB. Free memory was 83.9MB in the beginning and 83.0MB in the end (delta: 921.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 172.87ms. Allocated memory is still 109.1MB. Free memory was 82.8MB in the beginning and 73.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2415.02ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 73.5MB in the beginning and 54.9MB in the end (delta: 18.5MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * Witness Printer took 2.36ms. Allocated memory is still 132.1MB. Free memory is still 54.9MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -3 * i + unknown-#length-unknown[a] and consists of 4 locations. One deterministic module has affine ranking function -1 * i + N and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 24 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital141 mio100 ax100 hnf100 lsp92 ukn82 mio100 lsp49 div100 bol100 ite100 ukn100 eq161 hnf92 smp96 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 21:52:23,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 21:52:23,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ee964d-6db9-49aa-a75a-0873fc2311b2/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE