./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f49dce48b63f0ee8eed4ac47c25c384a83e3c23200b58c130c184e2b953e32f3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:12:14,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:12:14,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:12:14,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:12:14,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:12:14,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:12:14,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:12:14,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:12:14,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:12:14,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:12:14,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:12:14,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:12:14,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:12:14,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:12:14,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:12:14,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:12:14,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:12:14,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:12:14,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:12:14,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:12:14,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:12:14,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:12:14,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:12:14,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:12:14,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:12:14,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:12:14,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:12:14,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:12:14,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:12:14,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:12:14,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:12:14,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:12:14,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:12:14,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:12:14,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:12:14,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:12:14,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:12:14,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:12:14,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:12:14,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:12:14,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:12:14,834 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 07:12:14,884 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:12:14,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:12:14,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:12:14,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:12:14,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:12:14,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:12:14,887 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:12:14,887 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:12:14,888 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:12:14,888 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:12:14,889 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:12:14,889 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:12:14,889 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:12:14,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:12:14,890 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:12:14,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:12:14,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:12:14,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:12:14,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:12:14,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:12:14,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:12:14,891 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:12:14,891 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:12:14,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:12:14,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:12:14,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:12:14,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:12:14,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:12:14,894 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:12:14,895 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:12:14,895 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_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f49dce48b63f0ee8eed4ac47c25c384a83e3c23200b58c130c184e2b953e32f3 [2021-11-20 07:12:15,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:12:15,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:12:15,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:12:15,252 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:12:15,252 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:12:15,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i [2021-11-20 07:12:15,313 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/data/b622e1998/78ccde784a1d419e82335ae8f20f263e/FLAG4fc6425bb [2021-11-20 07:12:15,846 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:12:15,850 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/sv-benchmarks/c/termination-memory-alloca/c.01-no-inv-alloca.i [2021-11-20 07:12:15,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/data/b622e1998/78ccde784a1d419e82335ae8f20f263e/FLAG4fc6425bb [2021-11-20 07:12:16,143 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/data/b622e1998/78ccde784a1d419e82335ae8f20f263e [2021-11-20 07:12:16,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:12:16,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:12:16,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:12:16,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:12:16,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:12:16,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:12:16" (1/1) ... [2021-11-20 07:12:16,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a036f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:12:16, skipping insertion in model container [2021-11-20 07:12:16,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:12:16" (1/1) ... [2021-11-20 07:12:16,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:12:16,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:12:16,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:12:16,534 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:12:16,572 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:12:16,598 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:12:16,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:12:16 WrapperNode [2021-11-20 07:12:16,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:12:16,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:12:16,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:12:16,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:12:16,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:12:16" (1/1) ... [2021-11-20 07:12:16,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:12:16" (1/1) ... [2021-11-20 07:12:16,639 INFO L137 Inliner]: procedures = 111, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2021-11-20 07:12:16,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:12:16,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:12:16,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:12:16,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:12:16,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:12:16" (1/1) ... [2021-11-20 07:12:16,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:12:16" (1/1) ... [2021-11-20 07:12:16,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:12:16" (1/1) ... [2021-11-20 07:12:16,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:12:16" (1/1) ... [2021-11-20 07:12:16,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:12:16" (1/1) ... [2021-11-20 07:12:16,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:12:16" (1/1) ... [2021-11-20 07:12:16,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:12:16" (1/1) ... [2021-11-20 07:12:16,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:12:16,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:12:16,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:12:16,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:12:16,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:12:16" (1/1) ... [2021-11-20 07:12:16,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:16,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:16,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:16,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:12:16,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:12:16,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:12:16,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:12:16,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:12:16,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:12:16,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:12:16,908 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:12:16,916 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:12:17,147 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:12:17,152 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:12:17,157 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 07:12:17,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:12:17 BoogieIcfgContainer [2021-11-20 07:12:17,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:12:17,161 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:12:17,161 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:12:17,164 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:12:17,165 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:12:17,165 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:12:16" (1/3) ... [2021-11-20 07:12:17,167 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3673010d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:12:17, skipping insertion in model container [2021-11-20 07:12:17,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:12:17,167 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:12:16" (2/3) ... [2021-11-20 07:12:17,168 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3673010d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:12:17, skipping insertion in model container [2021-11-20 07:12:17,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:12:17,168 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:12:17" (3/3) ... [2021-11-20 07:12:17,169 INFO L388 chiAutomizerObserver]: Analyzing ICFG c.01-no-inv-alloca.i [2021-11-20 07:12:17,231 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:12:17,232 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:12:17,232 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:12:17,232 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:12:17,232 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:12:17,232 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:12:17,232 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:12:17,233 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:12:17,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) [2021-11-20 07:12:17,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-20 07:12:17,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:12:17,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:12:17,283 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:12:17,283 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-20 07:12:17,283 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:12:17,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) [2021-11-20 07:12:17,286 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-20 07:12:17,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:12:17,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:12:17,287 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:12:17,287 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-20 07:12:17,294 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem10#1, test_fun_#t~mem6#1, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~short9#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem12#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, test_fun_~c~0#1.base, test_fun_~c~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 6#L555-3true [2021-11-20 07:12:17,295 INFO L793 eck$LassoCheckResult]: Loop: 6#L555-3true call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 13#L555-1true assume !!(test_fun_#t~mem5#1 >= 0);havoc test_fun_#t~mem5#1;call write~int(1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 9#L557-5true assume !true; 10#L557-6true call test_fun_#t~mem11#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem11#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem11#1; 6#L555-3true [2021-11-20 07:12:17,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:17,301 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-20 07:12:17,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:12:17,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941191234] [2021-11-20 07:12:17,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:17,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:12:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:12:17,475 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:12:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:12:17,544 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:12:17,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:17,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1144552, now seen corresponding path program 1 times [2021-11-20 07:12:17,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:12:17,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338146257] [2021-11-20 07:12:17,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:17,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:12:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:12:17,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:12:17,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338146257] [2021-11-20 07:12:17,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338146257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:12:17,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:12:17,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:12:17,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167559938] [2021-11-20 07:12:17,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:12:17,641 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:12:17,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:12:17,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:12:17,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:12:17,674 INFO L87 Difference]: Start difference. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:12:17,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:12:17,679 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-11-20 07:12:17,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:12:17,692 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2021-11-20 07:12:17,693 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-20 07:12:17,696 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 8 states and 10 transitions. [2021-11-20 07:12:17,697 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-11-20 07:12:17,697 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-20 07:12:17,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2021-11-20 07:12:17,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:12:17,698 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-11-20 07:12:17,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2021-11-20 07:12:17,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-20 07:12:17,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:12:17,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-11-20 07:12:17,745 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-11-20 07:12:17,746 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-11-20 07:12:17,746 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:12:17,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-11-20 07:12:17,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-20 07:12:17,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:12:17,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:12:17,748 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:12:17,748 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:12:17,748 INFO L791 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 35#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem10#1, test_fun_#t~mem6#1, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~short9#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem12#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, test_fun_~c~0#1.base, test_fun_~c~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 36#L555-3 [2021-11-20 07:12:17,749 INFO L793 eck$LassoCheckResult]: Loop: 36#L555-3 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 37#L555-1 assume !!(test_fun_#t~mem5#1 >= 0);havoc test_fun_#t~mem5#1;call write~int(1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 38#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 39#L557-1 assume test_fun_#t~short9#1;call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem8#1 < 1073741824; 41#L557-3 assume !test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1; 40#L557-6 call test_fun_#t~mem11#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem11#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem11#1; 36#L555-3 [2021-11-20 07:12:17,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:17,750 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-11-20 07:12:17,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:12:17,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152914282] [2021-11-20 07:12:17,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:17,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:12:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:12:17,814 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:12:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:12:17,836 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:12:17,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:17,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1099516495, now seen corresponding path program 1 times [2021-11-20 07:12:17,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:12:17,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059961148] [2021-11-20 07:12:17,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:17,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:12:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:17,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:12:17,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:12:17,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059961148] [2021-11-20 07:12:17,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059961148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:12:17,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:12:17,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:12:17,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948267003] [2021-11-20 07:12:17,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:12:17,928 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:12:17,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:12:17,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:12:17,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:12:17,930 INFO L87 Difference]: Start difference. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2021-11-20 07:12:17,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:12:17,992 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-11-20 07:12:17,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:12:17,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2021-11-20 07:12:17,994 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-11-20 07:12:17,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2021-11-20 07:12:17,995 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-11-20 07:12:17,995 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-11-20 07:12:17,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-11-20 07:12:17,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:12:17,996 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-11-20 07:12:17,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-11-20 07:12:17,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 11. [2021-11-20 07:12:17,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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) [2021-11-20 07:12:17,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-11-20 07:12:17,998 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-11-20 07:12:17,998 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-11-20 07:12:17,999 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 07:12:17,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2021-11-20 07:12:17,999 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-20 07:12:17,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:12:18,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:12:18,000 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:12:18,000 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:12:18,000 INFO L791 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 68#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~nondet14#1, main_#t~ret15#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet13#1, main_#t~nondet14#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset, test_fun_#t~mem10#1, test_fun_#t~mem6#1, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~short9#1, test_fun_#t~mem11#1, test_fun_#t~mem5#1, test_fun_#t~mem12#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, test_fun_~c~0#1.base, test_fun_~c~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);test_fun_~c~0#1.base, test_fun_~c~0#1.offset := test_fun_#t~malloc4#1.base, test_fun_#t~malloc4#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(0, test_fun_~c~0#1.base, test_fun_~c~0#1.offset, 4); 69#L555-3 [2021-11-20 07:12:18,001 INFO L793 eck$LassoCheckResult]: Loop: 69#L555-3 call test_fun_#t~mem5#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 70#L555-1 assume !!(test_fun_#t~mem5#1 >= 0);havoc test_fun_#t~mem5#1;call write~int(1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 71#L557-5 call test_fun_#t~mem6#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem7#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short9#1 := test_fun_#t~mem6#1 > test_fun_#t~mem7#1; 72#L557-1 assume !test_fun_#t~short9#1; 77#L557-3 assume !test_fun_#t~short9#1;havoc test_fun_#t~mem6#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1;havoc test_fun_#t~short9#1; 73#L557-6 call test_fun_#t~mem11#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem11#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem11#1; 69#L555-3 [2021-11-20 07:12:18,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:18,001 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2021-11-20 07:12:18,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:12:18,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964803580] [2021-11-20 07:12:18,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:18,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:12:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:12:18,019 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:12:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:12:18,039 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:12:18,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:18,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1099518417, now seen corresponding path program 1 times [2021-11-20 07:12:18,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:12:18,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395498721] [2021-11-20 07:12:18,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:18,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:12:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:12:18,050 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:12:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:12:18,062 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:12:18,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:18,063 INFO L85 PathProgramCache]: Analyzing trace with hash 179567635, now seen corresponding path program 1 times [2021-11-20 07:12:18,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:12:18,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553996323] [2021-11-20 07:12:18,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:12:18,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:12:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:12:18,084 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:12:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:12:18,113 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:12:18,895 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:12:18,896 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:12:18,896 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:12:18,896 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:12:18,896 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:12:18,896 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:18,897 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:12:18,897 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:12:18,897 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv-alloca.i_Iteration3_Lasso [2021-11-20 07:12:18,897 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:12:18,897 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:12:18,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:18,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:18,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:18,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:18,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:12:19,755 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:12:19,761 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:12:19,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:19,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:19,767 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:19,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 07:12:19,775 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 [2021-11-20 07:12:19,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:12:19,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:12:19,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:12:19,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:12:19,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:12:19,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:12:19,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:12:19,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:12:19,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:19,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:19,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:19,861 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:19,871 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 [2021-11-20 07:12:19,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:12:19,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:12:19,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:12:19,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:12:19,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:12:19,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:12:19,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:12:19,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 07:12:19,909 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:12:19,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:19,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:19,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:19,952 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:19,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 07:12:19,960 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 [2021-11-20 07:12:19,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:12:19,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:12:19,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:12:19,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:12:19,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:12:19,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:12:19,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:12:19,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:12:20,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:20,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:20,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:20,005 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:20,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 07:12:20,013 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 [2021-11-20 07:12:20,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:12:20,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:12:20,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:12:20,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:12:20,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:12:20,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:12:20,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:12:20,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:12:20,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-20 07:12:20,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:20,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:20,045 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:20,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 07:12:20,047 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 [2021-11-20 07:12:20,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:12:20,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:12:20,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:12:20,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:12:20,083 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:12:20,084 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:12:20,108 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:12:20,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:20,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:20,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:20,145 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:20,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 07:12:20,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:12:20,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:12:20,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:12:20,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:12:20,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:12:20,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:12:20,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:12:20,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:12:20,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:20,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:20,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:20,235 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:20,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 07:12:20,255 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 [2021-11-20 07:12:20,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:12:20,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:12:20,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:12:20,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:12:20,266 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:12:20,267 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:12:20,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:12:20,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:20,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:20,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:20,315 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:20,327 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 [2021-11-20 07:12:20,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:12:20,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:12:20,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:12:20,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:12:20,339 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:12:20,339 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:12:20,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 07:12:20,354 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:12:20,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:20,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:20,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:20,393 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:20,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 07:12:20,395 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 [2021-11-20 07:12:20,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:12:20,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:12:20,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:12:20,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:12:20,405 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:12:20,405 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:12:20,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:12:20,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:20,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:20,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:20,442 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:20,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 07:12:20,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:12:20,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:12:20,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:12:20,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:12:20,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:12:20,456 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:12:20,456 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:12:20,478 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:12:20,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:20,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:20,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:20,507 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:20,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 07:12:20,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:12:20,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:12:20,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:12:20,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:12:20,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:12:20,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:12:20,526 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:12:20,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:12:20,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:20,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:20,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:20,579 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:20,584 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 [2021-11-20 07:12:20,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:12:20,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:12:20,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:12:20,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:12:20,597 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:12:20,598 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:12:20,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 07:12:20,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:12:20,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:20,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:20,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:20,637 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:20,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-20 07:12:20,638 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 [2021-11-20 07:12:20,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:12:20,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:12:20,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:12:20,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:12:20,650 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:12:20,650 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:12:20,662 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:12:20,728 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-11-20 07:12:20,728 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-11-20 07:12:20,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:12:20,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:12:20,743 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:12:20,775 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:12:20,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-20 07:12:20,805 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 07:12:20,805 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:12:20,806 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0#1.base) ULTIMATE.start_test_fun_~x_ref~0#1.offset)_1) = 2*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0#1.base) ULTIMATE.start_test_fun_~x_ref~0#1.offset)_1 + 1 Supporting invariants [] [2021-11-20 07:12:20,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:20,927 INFO L297 tatePredicateManager]: 19 out of 20 supporting invariants were superfluous and have been removed [2021-11-20 07:12:20,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:20,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 07:12:20,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:21,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:12:21,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:21,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-11-20 07:12:21,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:12:21,239 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:12:21,239 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-20 07:12:21,310 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) Result 22 states and 29 transitions. Complement of second has 6 states. [2021-11-20 07:12:21,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-20 07:12:21,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-20 07:12:21,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-11-20 07:12:21,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-20 07:12:21,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:12:21,315 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:12:21,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:21,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 07:12:21,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:21,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:12:21,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:21,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-11-20 07:12:21,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:12:21,525 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:12:21,525 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-20 07:12:21,552 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) Result 14 states and 17 transitions. Complement of second has 5 states. [2021-11-20 07:12:21,553 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 [2021-11-20 07:12:21,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-20 07:12:21,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2021-11-20 07:12:21,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-20 07:12:21,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:12:21,554 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:12:21,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:21,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 07:12:21,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:21,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:12:21,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:21,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-11-20 07:12:21,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-20 07:12:21,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:12:21,793 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 3 loop predicates [2021-11-20 07:12:21,793 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-20 07:12:21,820 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) Result 14 states and 17 transitions. Complement of second has 4 states. [2021-11-20 07:12:21,821 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 [2021-11-20 07:12:21,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-20 07:12:21,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2021-11-20 07:12:21,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-20 07:12:21,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:12:21,823 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:12:21,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:21,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 07:12:21,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:21,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:12:21,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:21,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-11-20 07:12:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:12:22,002 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:12:22,002 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-20 07:12:22,059 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) Result 22 states and 29 transitions. Complement of second has 6 states. [2021-11-20 07:12:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-20 07:12:22,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-20 07:12:22,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2021-11-20 07:12:22,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-20 07:12:22,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:12:22,063 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:12:22,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:12:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:22,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 07:12:22,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:12:22,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:12:22,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:12:22,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2021-11-20 07:12:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:12:22,240 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:12:22,241 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-20 07:12:22,359 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) Result 52 states and 82 transitions. Complement of second has 16 states 6 powerset states10 rank states. The highest rank that occured is 3 [2021-11-20 07:12:22,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2021-11-20 07:12:22,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-20 07:12:22,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2021-11-20 07:12:22,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-20 07:12:22,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:12:22,369 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:12:22,370 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: no settings was sufficient at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:785) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:549) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-20 07:12:22,373 INFO L158 Benchmark]: Toolchain (without parser) took 6225.77ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 64.4MB in the beginning and 86.0MB in the end (delta: -21.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2021-11-20 07:12:22,373 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:12:22,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.71ms. Allocated memory is still 107.0MB. Free memory was 64.2MB in the beginning and 76.2MB in the end (delta: -12.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-11-20 07:12:22,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.60ms. Allocated memory is still 107.0MB. Free memory was 76.2MB in the beginning and 74.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:12:22,380 INFO L158 Benchmark]: Boogie Preprocessor took 22.80ms. Allocated memory is still 107.0MB. Free memory was 74.4MB in the beginning and 73.2MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:12:22,380 INFO L158 Benchmark]: RCFGBuilder took 496.78ms. Allocated memory is still 107.0MB. Free memory was 73.2MB in the beginning and 61.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 07:12:22,381 INFO L158 Benchmark]: BuchiAutomizer took 5210.66ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 61.9MB in the beginning and 86.0MB in the end (delta: -24.1MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2021-11-20 07:12:22,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.71ms. Allocated memory is still 107.0MB. Free memory was 64.2MB in the beginning and 76.2MB in the end (delta: -12.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.60ms. Allocated memory is still 107.0MB. Free memory was 76.2MB in the beginning and 74.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.80ms. Allocated memory is still 107.0MB. Free memory was 74.4MB in the beginning and 73.2MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 496.78ms. Allocated memory is still 107.0MB. Free memory was 73.2MB in the beginning and 61.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5210.66ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 61.9MB in the beginning and 86.0MB in the end (delta: -24.1MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: no settings was sufficient de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: no settings was sufficient: de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:785) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-20 07:12:22,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46cc06b-c76c-4493-8135-39ad6ea2205b/bin/uautomizer-DQz5hQGWxF/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: no settings was sufficient