./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b.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_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/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_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/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_b3767c64-a56d-4228-94f2-e17ec9051ca3/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 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:34:55,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:34:55,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:34:55,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:34:55,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:34:55,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:34:55,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:34:55,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:34:55,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:34:55,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:34:55,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:34:55,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:34:55,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:34:55,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:34:55,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:34:55,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:34:55,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:34:55,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:34:55,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:34:55,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:34:55,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:34:55,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:34:55,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:34:55,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:34:55,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:34:55,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:34:55,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:34:55,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:34:55,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:34:55,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:34:55,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:34:55,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:34:55,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:34:55,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:34:55,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:34:55,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:34:55,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:34:55,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:34:55,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:34:55,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:34:55,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:34:55,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 17:34:55,902 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:34:55,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:34:55,902 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:34:55,902 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:34:55,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:34:55,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:34:55,904 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:34:55,904 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 17:34:55,904 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 17:34:55,904 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 17:34:55,905 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 17:34:55,905 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 17:34:55,905 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 17:34:55,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:34:55,905 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:34:55,905 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 17:34:55,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:34:55,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:34:55,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:34:55,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 17:34:55,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 17:34:55,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 17:34:55,907 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:34:55,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:34:55,907 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 17:34:55,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:34:55,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 17:34:55,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:34:55,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:34:55,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:34:55,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:34:55,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:34:55,909 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 17:34:55,910 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_b3767c64-a56d-4228-94f2-e17ec9051ca3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c [2021-12-06 17:34:56,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:34:56,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:34:56,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:34:56,127 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:34:56,128 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:34:56,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/loop-lit/cggmp2005b.i [2021-12-06 17:34:56,177 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/data/ade6dd79b/e13dd425ef9241a0961dabec57b141ab/FLAGa46836290 [2021-12-06 17:34:56,571 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:34:56,571 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/sv-benchmarks/c/loop-lit/cggmp2005b.i [2021-12-06 17:34:56,577 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/data/ade6dd79b/e13dd425ef9241a0961dabec57b141ab/FLAGa46836290 [2021-12-06 17:34:56,588 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/data/ade6dd79b/e13dd425ef9241a0961dabec57b141ab [2021-12-06 17:34:56,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:34:56,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:34:56,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:34:56,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:34:56,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:34:56,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:34:56" (1/1) ... [2021-12-06 17:34:56,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51992489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:34:56, skipping insertion in model container [2021-12-06 17:34:56,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:34:56" (1/1) ... [2021-12-06 17:34:56,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:34:56,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:34:56,735 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_b3767c64-a56d-4228-94f2-e17ec9051ca3/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2021-12-06 17:34:56,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:34:56,749 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:34:56,758 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_b3767c64-a56d-4228-94f2-e17ec9051ca3/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2021-12-06 17:34:56,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:34:56,771 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:34:56,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:34:56 WrapperNode [2021-12-06 17:34:56,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:34:56,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:34:56,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:34:56,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:34:56,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:34:56" (1/1) ... [2021-12-06 17:34:56,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:34:56" (1/1) ... [2021-12-06 17:34:56,802 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2021-12-06 17:34:56,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:34:56,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:34:56,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:34:56,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:34:56,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:34:56" (1/1) ... [2021-12-06 17:34:56,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:34:56" (1/1) ... [2021-12-06 17:34:56,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:34:56" (1/1) ... [2021-12-06 17:34:56,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:34:56" (1/1) ... [2021-12-06 17:34:56,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:34:56" (1/1) ... [2021-12-06 17:34:56,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:34:56" (1/1) ... [2021-12-06 17:34:56,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:34:56" (1/1) ... [2021-12-06 17:34:56,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:34:56,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:34:56,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:34:56,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:34:56,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:34:56" (1/1) ... [2021-12-06 17:34:56,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:56,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:56,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:56,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 17:34:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:34:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:34:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:34:56,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:34:56,934 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:34:56,935 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:34:57,001 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:34:57,006 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:34:57,006 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-06 17:34:57,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:34:57 BoogieIcfgContainer [2021-12-06 17:34:57,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:34:57,009 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 17:34:57,009 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 17:34:57,012 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 17:34:57,013 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 17:34:57,013 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 05:34:56" (1/3) ... [2021-12-06 17:34:57,014 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60d0fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 05:34:57, skipping insertion in model container [2021-12-06 17:34:57,014 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 17:34:57,014 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:34:56" (2/3) ... [2021-12-06 17:34:57,015 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60d0fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 05:34:57, skipping insertion in model container [2021-12-06 17:34:57,015 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 17:34:57,015 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:34:57" (3/3) ... [2021-12-06 17:34:57,016 INFO L388 chiAutomizerObserver]: Analyzing ICFG cggmp2005b.i [2021-12-06 17:34:57,056 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 17:34:57,056 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 17:34:57,057 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 17:34:57,057 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 17:34:57,057 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 17:34:57,057 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 17:34:57,057 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 17:34:57,057 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 17:34:57,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 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 17:34:57,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 17:34:57,086 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:34:57,086 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:34:57,091 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 17:34:57,092 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 17:34:57,092 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 17:34:57,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 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 17:34:57,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 17:34:57,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:34:57,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:34:57,094 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 17:34:57,094 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 17:34:57,101 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(9, 2); 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 6#L35-3true [2021-12-06 17:34:57,101 INFO L793 eck$LassoCheckResult]: Loop: 6#L35-3true assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 11#L31-2true assume !(main_~j~0#1 < 20); 7#L31-3true main_~k~0#1 := 4; 10#L35-2true assume !true; 6#L35-3true [2021-12-06 17:34:57,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:57,107 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 17:34:57,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:34:57,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904801301] [2021-12-06 17:34:57,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:57,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:34:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:57,198 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:34:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:57,223 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:34:57,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:57,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1269299, now seen corresponding path program 1 times [2021-12-06 17:34:57,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:34:57,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574409547] [2021-12-06 17:34:57,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:57,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:34:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:57,264 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 17:34:57,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:34:57,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574409547] [2021-12-06 17:34:57,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574409547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:34:57,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:34:57,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-12-06 17:34:57,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644353199] [2021-12-06 17:34:57,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:34:57,269 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-06 17:34:57,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:34:57,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 17:34:57,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:34:57,296 INFO L87 Difference]: Start difference. First operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 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, 1 states have (on average 4.0) 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 17:34:57,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:34:57,301 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-12-06 17:34:57,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:34:57,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2021-12-06 17:34:57,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 17:34:57,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 6 states and 8 transitions. [2021-12-06 17:34:57,309 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 17:34:57,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-06 17:34:57,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2021-12-06 17:34:57,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:34:57,310 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-12-06 17:34:57,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2021-12-06 17:34:57,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-12-06 17:34:57,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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 17:34:57,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-12-06 17:34:57,330 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-12-06 17:34:57,330 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-12-06 17:34:57,330 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 17:34:57,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2021-12-06 17:34:57,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 17:34:57,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:34:57,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:34:57,331 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 17:34:57,331 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 17:34:57,331 INFO L791 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 35#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 37#L35-3 [2021-12-06 17:34:57,331 INFO L793 eck$LassoCheckResult]: Loop: 37#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 38#L31-2 assume !(main_~j~0#1 < 20); 39#L31-3 main_~k~0#1 := 4; 36#L35-2 assume !(main_~k~0#1 <= 3); 37#L35-3 [2021-12-06 17:34:57,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:57,332 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-12-06 17:34:57,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:34:57,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326120376] [2021-12-06 17:34:57,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:57,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:34:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:57,338 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:34:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:57,345 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:34:57,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:57,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1269295, now seen corresponding path program 1 times [2021-12-06 17:34:57,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:34:57,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19326684] [2021-12-06 17:34:57,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:57,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:34:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:57,352 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:34:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:57,356 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:34:57,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:57,357 INFO L85 PathProgramCache]: Analyzing trace with hash 889696497, now seen corresponding path program 1 times [2021-12-06 17:34:57,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:34:57,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932163673] [2021-12-06 17:34:57,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:57,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:34:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:57,384 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 17:34:57,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:34:57,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932163673] [2021-12-06 17:34:57,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932163673] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:34:57,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:34:57,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:34:57,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480422663] [2021-12-06 17:34:57,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:34:57,441 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:34:57,442 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:34:57,442 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:34:57,442 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:34:57,442 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 17:34:57,442 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:57,442 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:34:57,442 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:34:57,442 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2021-12-06 17:34:57,442 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:34:57,443 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:34:57,458 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 17:34:57,464 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 17:34:57,468 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 17:34:57,511 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:34:57,512 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 17:34:57,514 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:57,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:57,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:57,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 17:34:57,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:34:57,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:34:57,533 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:34:57,534 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=20} Honda state: {ULTIMATE.start_main_~j~0#1=20} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 17:34:57,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:34:57,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:57,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:57,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:57,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 17:34:57,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:34:57,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:34:57,578 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:34:57,579 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=4} Honda state: {ULTIMATE.start_main_~k~0#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 17:34:57,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 17:34:57,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:57,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:57,598 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:57,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 17:34:57,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:34:57,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:34:57,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 17:34:57,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:57,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:57,628 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:57,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 17:34:57,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 17:34:57,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:34:57,664 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 17:34:57,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 17:34:57,667 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:34:57,667 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:34:57,667 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:34:57,667 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:34:57,667 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:34:57,667 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:57,667 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:34:57,667 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:34:57,667 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2021-12-06 17:34:57,667 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:34:57,667 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:34:57,668 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 17:34:57,671 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 17:34:57,676 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 17:34:57,699 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:34:57,702 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:34:57,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:57,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:57,704 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:57,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 17:34:57,705 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 17:34:57,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:57,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:34:57,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:57,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:57,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:57,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:34:57,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:34:57,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:34:57,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 17:34:57,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:57,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:57,750 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:57,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 17:34:57,752 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 17:34:57,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:57,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:34:57,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:57,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:57,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:57,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:34:57,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:34:57,763 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:34:57,766 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 17:34:57,766 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 17:34:57,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:57,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:57,768 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:57,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 17:34:57,769 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:34:57,770 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 17:34:57,770 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:34:57,770 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 201 Supporting invariants [] [2021-12-06 17:34:57,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 17:34:57,791 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 17:34:57,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:57,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:34:57,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:57,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:34:57,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:57,873 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 17:34:57,875 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 17:34:57,876 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 17:34:57,896 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14 states and 21 transitions. Complement of second has 4 states. [2021-12-06 17:34:57,897 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 17:34:57,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 17:34:57,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-12-06 17:34:57,899 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-06 17:34:57,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:57,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-06 17:34:57,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:57,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2021-12-06 17:34:57,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:57,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 21 transitions. [2021-12-06 17:34:57,902 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-12-06 17:34:57,902 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 20 transitions. [2021-12-06 17:34:57,902 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 17:34:57,903 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-06 17:34:57,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 20 transitions. [2021-12-06 17:34:57,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:34:57,903 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2021-12-06 17:34:57,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 20 transitions. [2021-12-06 17:34:57,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-12-06 17:34:57,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 10 states have internal predecessors, (17), 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 17:34:57,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2021-12-06 17:34:57,904 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2021-12-06 17:34:57,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:34:57,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:34:57,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:34:57,905 INFO L87 Difference]: Start difference. First operand 11 states and 17 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 17:34:57,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:34:57,909 INFO L93 Difference]: Finished difference Result 12 states and 19 transitions. [2021-12-06 17:34:57,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:34:57,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 19 transitions. [2021-12-06 17:34:57,911 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-12-06 17:34:57,911 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 19 transitions. [2021-12-06 17:34:57,911 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 17:34:57,911 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-06 17:34:57,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2021-12-06 17:34:57,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:34:57,912 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2021-12-06 17:34:57,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2021-12-06 17:34:57,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-06 17:34:57,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 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 17:34:57,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 19 transitions. [2021-12-06 17:34:57,913 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2021-12-06 17:34:57,913 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2021-12-06 17:34:57,913 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 17:34:57,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 19 transitions. [2021-12-06 17:34:57,914 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-12-06 17:34:57,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:34:57,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:34:57,914 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 17:34:57,914 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 17:34:57,914 INFO L791 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 117#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 125#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 126#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 121#L31-2 [2021-12-06 17:34:57,914 INFO L793 eck$LassoCheckResult]: Loop: 121#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 121#L31-2 [2021-12-06 17:34:57,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:57,915 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2021-12-06 17:34:57,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:34:57,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905380182] [2021-12-06 17:34:57,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:57,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:34:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:57,922 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:34:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:57,929 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:34:57,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:57,929 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-12-06 17:34:57,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:34:57,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572552623] [2021-12-06 17:34:57,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:57,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:34:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:57,932 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:34:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:57,934 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:34:57,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:57,935 INFO L85 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 2 times [2021-12-06 17:34:57,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:34:57,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233738539] [2021-12-06 17:34:57,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:57,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:34:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:57,942 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:34:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:57,949 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:34:58,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 17:34:58,063 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:34:58,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:34:58,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:34:58,063 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:34:58,064 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:34:58,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:34:58,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:34:58,064 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2021-12-06 17:34:58,064 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:34:58,064 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:34:58,066 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 17:34:58,068 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 17:34:58,079 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 17:34:58,081 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 17:34:58,086 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 17:34:58,089 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 17:34:58,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:34:58,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:34:58,100 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 17:34:58,175 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:34:58,175 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:34:58,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,176 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 17:34:58,177 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 17:34:58,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,187 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:34:58,187 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:34:58,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:34:58,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 17:34:58,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,213 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 17:34:58,214 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 17:34:58,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:34:58,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:34:58,228 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:34:58,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 17:34:58,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,250 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 17:34:58,251 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 17:34:58,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:34:58,261 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:34:58,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:34:58,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 17:34:58,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,286 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 17:34:58,287 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 17:34:58,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,297 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:34:58,297 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:34:58,300 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:34:58,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 17:34:58,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,333 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 17:34:58,334 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 17:34:58,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,343 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:34:58,343 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:34:58,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:34:58,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 17:34:58,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,368 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 17:34:58,369 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 17:34:58,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:34:58,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:34:58,381 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:34:58,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-06 17:34:58,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,401 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 17:34:58,402 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 17:34:58,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:34:58,411 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:34:58,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:34:58,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 17:34:58,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,432 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 17:34:58,433 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 17:34:58,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,441 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:34:58,441 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:34:58,444 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:34:58,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 17:34:58,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,463 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 17:34:58,465 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 17:34:58,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:34:58,474 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:34:58,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:34:58,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 17:34:58,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,507 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 17:34:58,509 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 17:34:58,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:34:58,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:34:58,524 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:34:58,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-06 17:34:58,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,544 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 17:34:58,545 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 17:34:58,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:34:58,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:34:58,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:34:58,554 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:34:58,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 17:34:58,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,573 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 17:34:58,575 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 17:34:58,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:34:58,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:34:58,586 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:34:58,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 17:34:58,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,605 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 17:34:58,607 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 17:34:58,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,616 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:34:58,616 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:34:58,622 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:34:58,629 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-06 17:34:58,629 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-06 17:34:58,629 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,630 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 17:34:58,631 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:34:58,642 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-06 17:34:58,642 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:34:58,642 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0#1 - 1 >= 0] [2021-12-06 17:34:58,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 17:34:58,676 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2021-12-06 17:34:58,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:58,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:34:58,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:58,721 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 17:34:58,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:58,721 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 17:34:58,722 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2021-12-06 17:34:58,722 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 17:34:58,745 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Result 21 states and 34 transitions. Complement of second has 6 states. [2021-12-06 17:34:58,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 17:34:58,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 17:34:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-12-06 17:34:58,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 1 letters. [2021-12-06 17:34:58,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:58,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 5 letters. Loop has 1 letters. [2021-12-06 17:34:58,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:58,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-06 17:34:58,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:58,746 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 34 transitions. [2021-12-06 17:34:58,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 17:34:58,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 28 transitions. [2021-12-06 17:34:58,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 17:34:58,748 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 17:34:58,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2021-12-06 17:34:58,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:34:58,748 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2021-12-06 17:34:58,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2021-12-06 17:34:58,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-12-06 17:34:58,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.588235294117647) internal successors, (27), 16 states have internal predecessors, (27), 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 17:34:58,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 27 transitions. [2021-12-06 17:34:58,749 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2021-12-06 17:34:58,750 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2021-12-06 17:34:58,750 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 17:34:58,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 27 transitions. [2021-12-06 17:34:58,750 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 17:34:58,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:34:58,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:34:58,750 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-06 17:34:58,750 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 17:34:58,750 INFO L791 eck$LassoCheckResult]: Stem: 201#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 202#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 212#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 213#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 206#L31-2 assume !(main_~j~0#1 < 20); 207#L31-3 main_~k~0#1 := 4; 203#L35-2 [2021-12-06 17:34:58,751 INFO L793 eck$LassoCheckResult]: Loop: 203#L35-2 assume !!(main_~k~0#1 <= 3);main_~k~0#1 := 1 + main_~k~0#1; 203#L35-2 [2021-12-06 17:34:58,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:58,751 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2021-12-06 17:34:58,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:34:58,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511896629] [2021-12-06 17:34:58,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:58,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:34:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:34:58,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:34:58,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511896629] [2021-12-06 17:34:58,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511896629] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:34:58,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940947212] [2021-12-06 17:34:58,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:58,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:34:58,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,777 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-12-06 17:34:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:58,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 17:34:58,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:58,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:34:58,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:34:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:34:58,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940947212] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:34:58,846 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:34:58,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-06 17:34:58,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099370772] [2021-12-06 17:34:58,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:34:58,846 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 17:34:58,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:58,847 INFO L85 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2021-12-06 17:34:58,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:34:58,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139657051] [2021-12-06 17:34:58,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:58,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:34:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:58,849 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:34:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:58,851 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:34:58,858 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:34:58,858 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:34:58,858 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:34:58,859 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:34:58,859 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 17:34:58,859 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,859 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:34:58,859 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:34:58,859 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2021-12-06 17:34:58,859 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:34:58,859 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:34:58,859 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 17:34:58,870 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:34:58,870 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 17:34:58,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,906 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 17:34:58,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:34:58,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:34:58,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 17:34:58,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,935 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 17:34:58,936 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 17:34:58,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:34:58,966 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 17:34:58,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-06 17:34:58,968 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:34:58,968 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:34:58,968 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:34:58,968 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:34:58,968 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:34:58,968 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,968 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:34:58,968 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:34:58,968 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2021-12-06 17:34:58,968 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:34:58,968 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:34:58,969 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 17:34:58,977 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:34:58,977 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:34:58,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,978 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 17:34:58,979 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 17:34:58,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:58,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:34:58,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:58,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:58,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:58,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:34:58,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:34:58,989 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:34:58,991 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 17:34:58,991 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 17:34:58,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:58,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:58,996 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:58,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-06 17:34:58,997 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:34:58,997 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 17:34:58,997 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:34:58,997 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = -2*ULTIMATE.start_main_~k~0#1 + 7 Supporting invariants [] [2021-12-06 17:34:59,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-06 17:34:59,016 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 17:34:59,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:59,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:34:59,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:59,036 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:34:59,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:59,036 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 17:34:59,037 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 17:34:59,037 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 17:34:59,045 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 48 states and 76 transitions. Complement of second has 5 states. [2021-12-06 17:34:59,046 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 17:34:59,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 17:34:59,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-12-06 17:34:59,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 1 letters. [2021-12-06 17:34:59,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:59,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 1 letters. [2021-12-06 17:34:59,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:59,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-06 17:34:59,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:59,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 76 transitions. [2021-12-06 17:34:59,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 17:34:59,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 52 transitions. [2021-12-06 17:34:59,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-06 17:34:59,051 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-06 17:34:59,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 52 transitions. [2021-12-06 17:34:59,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:34:59,051 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 52 transitions. [2021-12-06 17:34:59,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 52 transitions. [2021-12-06 17:34:59,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 17. [2021-12-06 17:34:59,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 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 17:34:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2021-12-06 17:34:59,054 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2021-12-06 17:34:59,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:34:59,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 17:34:59,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-12-06 17:34:59,055 INFO L87 Difference]: Start difference. First operand 17 states and 26 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 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 17:34:59,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:34:59,074 INFO L93 Difference]: Finished difference Result 19 states and 28 transitions. [2021-12-06 17:34:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:34:59,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 28 transitions. [2021-12-06 17:34:59,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 17:34:59,076 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 28 transitions. [2021-12-06 17:34:59,076 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 17:34:59,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-06 17:34:59,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 28 transitions. [2021-12-06 17:34:59,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:34:59,076 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2021-12-06 17:34:59,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 28 transitions. [2021-12-06 17:34:59,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-06 17:34:59,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 18 states have internal predecessors, (28), 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 17:34:59,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2021-12-06 17:34:59,078 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2021-12-06 17:34:59,078 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2021-12-06 17:34:59,078 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 17:34:59,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 28 transitions. [2021-12-06 17:34:59,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-06 17:34:59,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:34:59,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:34:59,079 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1] [2021-12-06 17:34:59,079 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 17:34:59,079 INFO L791 eck$LassoCheckResult]: Stem: 381#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(9, 2); 382#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 386#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 390#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 391#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 399#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 396#L31-2 assume !(main_~j~0#1 < 20); 393#L31-3 main_~k~0#1 := 4; 384#L35-2 assume !(main_~k~0#1 <= 3); 385#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 392#L31-2 assume !(main_~j~0#1 < 20); 388#L31-3 main_~k~0#1 := 4; 383#L35-2 [2021-12-06 17:34:59,079 INFO L793 eck$LassoCheckResult]: Loop: 383#L35-2 assume !!(main_~k~0#1 <= 3);main_~k~0#1 := 1 + main_~k~0#1; 383#L35-2 [2021-12-06 17:34:59,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:59,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1938241212, now seen corresponding path program 1 times [2021-12-06 17:34:59,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:34:59,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14632656] [2021-12-06 17:34:59,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:59,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:34:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:59,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-06 17:34:59,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 17:34:59,124 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 17:34:59,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:34:59,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14632656] [2021-12-06 17:34:59,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14632656] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:34:59,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762531474] [2021-12-06 17:34:59,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:59,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:34:59,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:59,126 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:34:59,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-12-06 17:34:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:59,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 17:34:59,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:59,211 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 17:34:59,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:34:59,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 17:34:59,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762531474] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:34:59,278 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:34:59,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2021-12-06 17:34:59,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774539044] [2021-12-06 17:34:59,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:34:59,279 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 17:34:59,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:59,279 INFO L85 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 2 times [2021-12-06 17:34:59,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:34:59,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461081102] [2021-12-06 17:34:59,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:34:59,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:34:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:59,282 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:34:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:34:59,284 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:34:59,291 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:34:59,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:34:59,291 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:34:59,291 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:34:59,291 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 17:34:59,291 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:59,291 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:34:59,291 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:34:59,291 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2021-12-06 17:34:59,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:34:59,292 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:34:59,292 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 17:34:59,301 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:34:59,301 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 17:34:59,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:59,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:59,302 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:59,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-06 17:34:59,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:34:59,304 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:34:59,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-12-06 17:34:59,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:59,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:59,331 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:59,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-06 17:34:59,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 17:34:59,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:34:59,362 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 17:34:59,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-06 17:34:59,364 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:34:59,364 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:34:59,364 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:34:59,364 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:34:59,364 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:34:59,364 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:59,364 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:34:59,364 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:34:59,364 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2021-12-06 17:34:59,364 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:34:59,364 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:34:59,365 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 17:34:59,372 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:34:59,373 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:34:59,373 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:59,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:59,373 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:59,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-06 17:34:59,374 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 17:34:59,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:34:59,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:34:59,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:34:59,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:34:59,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:34:59,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:34:59,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:34:59,383 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:34:59,385 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 17:34:59,385 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 17:34:59,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:34:59,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:34:59,385 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:34:59,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-06 17:34:59,386 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:34:59,386 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 17:34:59,386 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:34:59,386 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = -2*ULTIMATE.start_main_~k~0#1 + 7 Supporting invariants [] [2021-12-06 17:34:59,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-06 17:34:59,404 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 17:34:59,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:59,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:34:59,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:59,428 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:34:59,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:59,429 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 17:34:59,429 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 17:34:59,429 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 17:34:59,435 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 45 states and 70 transitions. Complement of second has 5 states. [2021-12-06 17:34:59,435 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 17:34:59,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 17:34:59,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-12-06 17:34:59,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 1 letters. [2021-12-06 17:34:59,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:59,436 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:34:59,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:59,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:34:59,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:59,459 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:34:59,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:59,460 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 17:34:59,460 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 17:34:59,460 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 17:34:59,466 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 45 states and 70 transitions. Complement of second has 5 states. [2021-12-06 17:34:59,467 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 17:34:59,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 17:34:59,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2021-12-06 17:34:59,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 1 letters. [2021-12-06 17:34:59,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:59,468 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:34:59,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:34:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:59,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:34:59,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:34:59,491 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:34:59,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:34:59,491 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 17:34:59,491 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 17:34:59,492 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 17:34:59,499 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 34 states and 50 transitions. Complement of second has 4 states. [2021-12-06 17:34:59,499 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 17:34:59,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 17:34:59,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-12-06 17:34:59,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 1 letters. [2021-12-06 17:34:59,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:59,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 13 letters. Loop has 1 letters. [2021-12-06 17:34:59,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:59,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 2 letters. [2021-12-06 17:34:59,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:34:59,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2021-12-06 17:34:59,501 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 17:34:59,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2021-12-06 17:34:59,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 17:34:59,501 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 17:34:59,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 17:34:59,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:34:59,502 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:34:59,502 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:34:59,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:34:59,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-06 17:34:59,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:34:59,502 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 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 17:34:59,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:34:59,502 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-12-06 17:34:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:34:59,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-12-06 17:34:59,503 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 17:34:59,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 17:34:59,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 17:34:59,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 17:34:59,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 17:34:59,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:34:59,503 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:34:59,503 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:34:59,503 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:34:59,503 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 17:34:59,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 17:34:59,504 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 17:34:59,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 17:34:59,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 05:34:59 BoogieIcfgContainer [2021-12-06 17:34:59,509 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 17:34:59,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:34:59,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:34:59,509 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:34:59,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:34:57" (3/4) ... [2021-12-06 17:34:59,512 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 17:34:59,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:34:59,512 INFO L158 Benchmark]: Toolchain (without parser) took 2921.51ms. Allocated memory is still 138.4MB. Free memory was 95.2MB in the beginning and 71.1MB in the end (delta: 24.1MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2021-12-06 17:34:59,512 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:34:59,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.19ms. Allocated memory is still 138.4MB. Free memory was 94.9MB in the beginning and 85.4MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 17:34:59,513 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.74ms. Allocated memory is still 138.4MB. Free memory was 85.4MB in the beginning and 83.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:34:59,513 INFO L158 Benchmark]: Boogie Preprocessor took 18.55ms. Allocated memory is still 138.4MB. Free memory was 83.8MB in the beginning and 82.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:34:59,513 INFO L158 Benchmark]: RCFGBuilder took 185.62ms. Allocated memory is still 138.4MB. Free memory was 82.8MB in the beginning and 112.3MB in the end (delta: -29.5MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2021-12-06 17:34:59,514 INFO L158 Benchmark]: BuchiAutomizer took 2500.11ms. Allocated memory is still 138.4MB. Free memory was 112.3MB in the beginning and 71.1MB in the end (delta: 41.2MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2021-12-06 17:34:59,514 INFO L158 Benchmark]: Witness Printer took 2.37ms. Allocated memory is still 138.4MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:34:59,516 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.19ms. Allocated memory is still 138.4MB. Free memory was 94.9MB in the beginning and 85.4MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.74ms. Allocated memory is still 138.4MB. Free memory was 85.4MB in the beginning and 83.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.55ms. Allocated memory is still 138.4MB. Free memory was 83.8MB in the beginning and 82.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 185.62ms. Allocated memory is still 138.4MB. Free memory was 82.8MB in the beginning and 112.3MB in the end (delta: -29.5MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2500.11ms. Allocated memory is still 138.4MB. Free memory was 112.3MB in the beginning and 71.1MB in the end (delta: 41.2MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. * Witness Printer took 2.37ms. Allocated memory is still 138.4MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 201 and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 39 and consists of 5 locations. One deterministic module has affine ranking function 7 + -2 * k and consists of 3 locations. One nondeterministic module has affine ranking function 7 + -2 * k and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 6 iterations. TraceHistogramMax:3. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 112 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 81 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf99 lsp78 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 17:34:59,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-06 17:34:59,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-12-06 17:34:59,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-12-06 17:35:00,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3767c64-a56d-4228-94f2-e17ec9051ca3/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