./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7e4d89645739beae47f9c52ff5003bd634bd856a7fdd28a03c9ca1afb29cead1 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:03:42,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:03:42,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:03:42,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:03:42,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:03:42,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:03:42,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:03:42,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:03:42,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:03:42,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:03:42,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:03:42,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:03:42,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:03:42,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:03:42,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:03:42,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:03:42,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:03:42,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:03:42,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:03:42,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:03:42,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:03:42,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:03:42,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:03:42,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:03:42,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:03:42,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:03:42,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:03:42,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:03:42,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:03:42,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:03:42,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:03:42,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:03:42,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:03:42,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:03:42,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:03:42,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:03:42,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:03:42,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:03:42,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:03:42,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:03:42,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:03:42,143 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 18:03:42,167 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:03:42,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:03:42,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:03:42,167 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:03:42,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:03:42,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:03:42,168 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:03:42,169 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 18:03:42,169 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 18:03:42,169 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 18:03:42,169 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 18:03:42,169 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 18:03:42,169 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 18:03:42,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:03:42,169 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:03:42,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:03:42,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:03:42,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 18:03:42,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 18:03:42,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 18:03:42,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:03:42,175 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 18:03:42,175 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:03:42,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 18:03:42,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:03:42,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:03:42,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:03:42,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:03:42,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:03:42,177 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 18:03:42,177 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_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e4d89645739beae47f9c52ff5003bd634bd856a7fdd28a03c9ca1afb29cead1 [2021-12-06 18:03:42,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:03:42,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:03:42,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:03:42,367 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:03:42,368 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:03:42,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca.i [2021-12-06 18:03:42,414 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/data/8020ec24d/16e3b9e472d44447b8d432d2cf960dce/FLAGf55520a6f [2021-12-06 18:03:42,817 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:03:42,817 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca.i [2021-12-06 18:03:42,829 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/data/8020ec24d/16e3b9e472d44447b8d432d2cf960dce/FLAGf55520a6f [2021-12-06 18:03:42,839 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/data/8020ec24d/16e3b9e472d44447b8d432d2cf960dce [2021-12-06 18:03:42,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:03:42,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:03:42,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:03:42,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:03:42,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:03:42,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:03:42" (1/1) ... [2021-12-06 18:03:42,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d77d03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:03:42, skipping insertion in model container [2021-12-06 18:03:42,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:03:42" (1/1) ... [2021-12-06 18:03:42,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:03:42,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:03:43,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:03:43,045 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:03:43,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:03:43,090 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:03:43,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:03:43 WrapperNode [2021-12-06 18:03:43,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:03:43,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:03:43,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:03:43,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:03:43,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:03:43" (1/1) ... [2021-12-06 18:03:43,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:03:43" (1/1) ... [2021-12-06 18:03:43,127 INFO L137 Inliner]: procedures = 109, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2021-12-06 18:03:43,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:03:43,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:03:43,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:03:43,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:03:43,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:03:43" (1/1) ... [2021-12-06 18:03:43,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:03:43" (1/1) ... [2021-12-06 18:03:43,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:03:43" (1/1) ... [2021-12-06 18:03:43,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:03:43" (1/1) ... [2021-12-06 18:03:43,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:03:43" (1/1) ... [2021-12-06 18:03:43,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:03:43" (1/1) ... [2021-12-06 18:03:43,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:03:43" (1/1) ... [2021-12-06 18:03:43,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:03:43,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:03:43,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:03:43,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:03:43,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:03:43" (1/1) ... [2021-12-06 18:03:43,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:43,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:43,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:43,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 18:03:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:03:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:03:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:03:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:03:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:03:43,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:03:43,259 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:03:43,260 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:03:43,329 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:03:43,333 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:03:43,334 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 18:03:43,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:03:43 BoogieIcfgContainer [2021-12-06 18:03:43,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:03:43,336 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 18:03:43,336 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 18:03:43,339 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 18:03:43,340 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 18:03:43,340 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 06:03:42" (1/3) ... [2021-12-06 18:03:43,340 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42413840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 06:03:43, skipping insertion in model container [2021-12-06 18:03:43,341 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 18:03:43,341 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:03:43" (2/3) ... [2021-12-06 18:03:43,341 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42413840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 06:03:43, skipping insertion in model container [2021-12-06 18:03:43,341 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 18:03:43,341 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:03:43" (3/3) ... [2021-12-06 18:03:43,342 INFO L388 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig2-alloca.i [2021-12-06 18:03:43,375 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 18:03:43,376 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 18:03:43,376 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 18:03:43,376 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 18:03:43,376 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 18:03:43,376 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 18:03:43,376 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 18:03:43,376 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 18:03:43,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) 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) [2021-12-06 18:03:43,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 18:03:43,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:03:43,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:03:43,410 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 18:03:43,410 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 18:03:43,410 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 18:03:43,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) 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) [2021-12-06 18:03:43,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 18:03:43,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:03:43,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:03:43,413 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 18:03:43,413 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 18:03:43,420 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; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 7#L549-3true [2021-12-06 18:03:43,420 INFO L793 eck$LassoCheckResult]: Loop: 7#L549-3true call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 3#L549-1true assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 8#L551-3true assume !true; 12#L551-4true call main_#t~mem7#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem7#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem7#1; 7#L549-3true [2021-12-06 18:03:43,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:43,426 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 18:03:43,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:43,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494733721] [2021-12-06 18:03:43,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:43,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:43,535 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:03:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:43,558 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:03:43,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:43,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1144360, now seen corresponding path program 1 times [2021-12-06 18:03:43,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:43,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426191734] [2021-12-06 18:03:43,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:43,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:03:43,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:03:43,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426191734] [2021-12-06 18:03:43,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426191734] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:03:43,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:03:43,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:03:43,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717875306] [2021-12-06 18:03:43,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:03:43,608 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-06 18:03:43,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:03:43,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 18:03:43,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 18:03:43,634 INFO L87 Difference]: Start difference. First operand has 11 states, 10 states have (on average 1.4) 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) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:43,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:03:43,639 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2021-12-06 18:03:43,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 18:03:43,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2021-12-06 18:03:43,644 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 18:03:43,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2021-12-06 18:03:43,647 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 18:03:43,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 18:03:43,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2021-12-06 18:03:43,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:03:43,648 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-06 18:03:43,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2021-12-06 18:03:43,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-12-06 18:03:43,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:43,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-12-06 18:03:43,667 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-06 18:03:43,667 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-06 18:03:43,667 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 18:03:43,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2021-12-06 18:03:43,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-06 18:03:43,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:03:43,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:03:43,668 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 18:03:43,668 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-06 18:03:43,668 INFO L791 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 33#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 34#L549-3 [2021-12-06 18:03:43,668 INFO L793 eck$LassoCheckResult]: Loop: 34#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 30#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 31#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 35#L551-1 assume !(main_#t~mem5#1 > 1);havoc main_#t~mem5#1; 36#L551-4 call main_#t~mem7#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem7#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem7#1; 34#L549-3 [2021-12-06 18:03:43,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:43,669 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-12-06 18:03:43,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:43,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591391131] [2021-12-06 18:03:43,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:43,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:43,683 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:03:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:43,692 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:03:43,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:43,692 INFO L85 PathProgramCache]: Analyzing trace with hash 35468273, now seen corresponding path program 1 times [2021-12-06 18:03:43,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:43,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678432302] [2021-12-06 18:03:43,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:43,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:03:43,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:03:43,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678432302] [2021-12-06 18:03:43,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678432302] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:03:43,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:03:43,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:03:43,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903293283] [2021-12-06 18:03:43,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:03:43,735 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-06 18:03:43,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:03:43,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:03:43,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:03:43,736 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:03:43,762 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-12-06 18:03:43,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:03:43,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-12-06 18:03:43,763 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-06 18:03:43,763 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2021-12-06 18:03:43,763 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-06 18:03:43,764 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-06 18:03:43,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-12-06 18:03:43,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:03:43,764 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-06 18:03:43,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-12-06 18:03:43,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-06 18:03:43,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:43,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-12-06 18:03:43,765 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-06 18:03:43,765 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-06 18:03:43,765 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 18:03:43,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2021-12-06 18:03:43,766 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-06 18:03:43,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:03:43,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:03:43,766 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 18:03:43,766 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2021-12-06 18:03:43,766 INFO L791 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 58#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 59#L549-3 [2021-12-06 18:03:43,766 INFO L793 eck$LassoCheckResult]: Loop: 59#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 55#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 56#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 60#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 61#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 63#L551-1 assume !(main_#t~mem5#1 > 1);havoc main_#t~mem5#1; 62#L551-4 call main_#t~mem7#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem7#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem7#1; 59#L549-3 [2021-12-06 18:03:43,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:43,767 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2021-12-06 18:03:43,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:43,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550474] [2021-12-06 18:03:43,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:43,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:43,776 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:03:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:43,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:03:43,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:43,784 INFO L85 PathProgramCache]: Analyzing trace with hash -274676436, now seen corresponding path program 1 times [2021-12-06 18:03:43,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:43,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802135134] [2021-12-06 18:03:43,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:43,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:43,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:03:43,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:03:43,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802135134] [2021-12-06 18:03:43,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802135134] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:03:43,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016828662] [2021-12-06 18:03:43,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:43,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:03:43,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:43,841 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:03:43,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 18:03:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:43,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 18:03:43,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:03:43,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 18:03:43,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-06 18:03:43,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-06 18:03:43,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:03:43,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:03:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:03:44,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016828662] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:03:44,015 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:03:44,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2021-12-06 18:03:44,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37814862] [2021-12-06 18:03:44,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:03:44,016 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-06 18:03:44,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:03:44,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 18:03:44,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:03:44,017 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:44,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:03:44,063 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-12-06 18:03:44,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 18:03:44,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2021-12-06 18:03:44,065 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 18:03:44,066 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2021-12-06 18:03:44,066 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-06 18:03:44,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-06 18:03:44,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2021-12-06 18:03:44,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:03:44,067 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-12-06 18:03:44,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2021-12-06 18:03:44,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-12-06 18:03:44,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:44,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-12-06 18:03:44,068 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-12-06 18:03:44,068 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-12-06 18:03:44,068 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 18:03:44,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2021-12-06 18:03:44,069 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 18:03:44,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:03:44,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:03:44,069 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 18:03:44,069 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 4, 1, 1, 1, 1] [2021-12-06 18:03:44,069 INFO L791 eck$LassoCheckResult]: Stem: 136#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 137#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 138#L549-3 [2021-12-06 18:03:44,070 INFO L793 eck$LassoCheckResult]: Loop: 138#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 134#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 135#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 139#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 140#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 141#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 148#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 147#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 146#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 145#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 144#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 143#L551-1 assume !(main_#t~mem5#1 > 1);havoc main_#t~mem5#1; 142#L551-4 call main_#t~mem7#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem7#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem7#1; 138#L549-3 [2021-12-06 18:03:44,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:44,070 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2021-12-06 18:03:44,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:44,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583909036] [2021-12-06 18:03:44,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:44,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:44,080 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:03:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:44,089 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:03:44,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:44,089 INFO L85 PathProgramCache]: Analyzing trace with hash 351922269, now seen corresponding path program 2 times [2021-12-06 18:03:44,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:44,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945819293] [2021-12-06 18:03:44,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:44,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:44,202 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:03:44,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:03:44,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945819293] [2021-12-06 18:03:44,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945819293] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:03:44,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251174750] [2021-12-06 18:03:44,203 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 18:03:44,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:03:44,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:44,204 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:03:44,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 18:03:44,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 18:03:44,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 18:03:44,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 18:03:44,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:03:44,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 18:03:44,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-06 18:03:44,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-06 18:03:44,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-06 18:03:44,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-06 18:03:44,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-06 18:03:44,369 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:03:44,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:03:44,432 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:03:44,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251174750] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:03:44,433 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:03:44,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 17 [2021-12-06 18:03:44,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029095332] [2021-12-06 18:03:44,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:03:44,434 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-06 18:03:44,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:03:44,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 18:03:44,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=160, Unknown=0, NotChecked=0, Total=272 [2021-12-06 18:03:44,435 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. cyclomatic complexity: 2 Second operand has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:44,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:03:44,515 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-12-06 18:03:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 18:03:44,516 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 26 transitions. [2021-12-06 18:03:44,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-12-06 18:03:44,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 26 transitions. [2021-12-06 18:03:44,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-12-06 18:03:44,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-12-06 18:03:44,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 26 transitions. [2021-12-06 18:03:44,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:03:44,519 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-12-06 18:03:44,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 26 transitions. [2021-12-06 18:03:44,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-12-06 18:03:44,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:44,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-12-06 18:03:44,521 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-12-06 18:03:44,521 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-12-06 18:03:44,521 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 18:03:44,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 26 transitions. [2021-12-06 18:03:44,521 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-12-06 18:03:44,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:03:44,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:03:44,522 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 18:03:44,522 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [10, 9, 1, 1, 1, 1] [2021-12-06 18:03:44,522 INFO L791 eck$LassoCheckResult]: Stem: 278#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 279#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 280#L549-3 [2021-12-06 18:03:44,522 INFO L793 eck$LassoCheckResult]: Loop: 280#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 276#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 277#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 281#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 282#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 283#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 300#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 299#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 298#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 297#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 296#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 295#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 294#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 293#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 292#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 291#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 290#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 289#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 288#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 287#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 286#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 285#L551-1 assume !(main_#t~mem5#1 > 1);havoc main_#t~mem5#1; 284#L551-4 call main_#t~mem7#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem7#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem7#1; 280#L549-3 [2021-12-06 18:03:44,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:44,523 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2021-12-06 18:03:44,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:44,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026550996] [2021-12-06 18:03:44,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:44,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:44,529 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:03:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:44,534 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:03:44,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:44,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1943458812, now seen corresponding path program 3 times [2021-12-06 18:03:44,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:44,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375543756] [2021-12-06 18:03:44,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:44,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:44,577 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:03:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:44,607 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:03:44,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:44,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1979445758, now seen corresponding path program 1 times [2021-12-06 18:03:44,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:44,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783797237] [2021-12-06 18:03:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:44,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:44,642 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:03:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:44,671 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:03:48,435 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 18:03:48,435 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 18:03:48,436 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 18:03:48,436 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 18:03:48,436 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 18:03:48,436 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:48,436 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 18:03:48,436 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 18:03:48,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-2013WST-Fig2-alloca.i_Iteration5_Lasso [2021-12-06 18:03:48,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 18:03:48,436 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 18:03:48,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:48,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:48,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:48,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:48,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:48,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:48,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:48,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:48,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:48,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:48,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:48,716 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 18:03:48,719 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 18:03:48,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:48,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:48,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:48,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 18:03:48,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:48,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:48,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 18:03:48,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:48,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:48,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:48,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 18:03:48,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 18:03:48,735 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 18:03:48,739 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 18:03:48,739 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 18:03:48,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:48,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:48,745 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:48,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 18:03:48,747 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 18:03:48,747 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 18:03:48,747 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 18:03:48,747 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0#1.base) ULTIMATE.start_main_~x1~0#1.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0#1.base) ULTIMATE.start_main_~x1~0#1.offset)_1 + 21 Supporting invariants [] [2021-12-06 18:03:48,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-06 18:03:48,789 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2021-12-06 18:03:48,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:48,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 18:03:48,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:03:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:48,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 18:03:48,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:03:48,877 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 25 treesize of output 25 [2021-12-06 18:03:48,907 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 25 treesize of output 25 [2021-12-06 18:03:48,925 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 25 treesize of output 25 [2021-12-06 18:03:48,942 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 25 treesize of output 25 [2021-12-06 18:03:48,960 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 25 treesize of output 25 [2021-12-06 18:03:48,977 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 25 treesize of output 25 [2021-12-06 18:03:48,994 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 25 treesize of output 25 [2021-12-06 18:03:49,012 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 25 treesize of output 25 [2021-12-06 18:03:49,030 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 25 treesize of output 25 [2021-12-06 18:03:49,048 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 25 treesize of output 25 [2021-12-06 18:03:49,064 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-06 18:03:49,066 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 [2021-12-06 18:03:49,067 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 26 transitions. cyclomatic complexity: 2 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) [2021-12-06 18:03:49,108 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 26 transitions. cyclomatic complexity: 2. 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 48 states and 51 transitions. Complement of second has 6 states. [2021-12-06 18:03:49,109 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 [2021-12-06 18:03:49,109 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) [2021-12-06 18:03:49,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-12-06 18:03:49,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 23 letters. [2021-12-06 18:03:49,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:03:49,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 25 letters. Loop has 23 letters. [2021-12-06 18:03:49,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:03:49,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 46 letters. [2021-12-06 18:03:49,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:03:49,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 51 transitions. [2021-12-06 18:03:49,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:03:49,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 47 states and 50 transitions. [2021-12-06 18:03:49,115 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2021-12-06 18:03:49,115 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-12-06 18:03:49,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 50 transitions. [2021-12-06 18:03:49,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 18:03:49,122 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 50 transitions. [2021-12-06 18:03:49,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 50 transitions. [2021-12-06 18:03:49,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 29. [2021-12-06 18:03:49,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.103448275862069) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:49,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2021-12-06 18:03:49,125 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 32 transitions. [2021-12-06 18:03:49,125 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 32 transitions. [2021-12-06 18:03:49,125 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 18:03:49,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 32 transitions. [2021-12-06 18:03:49,125 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:03:49,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:03:49,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:03:49,126 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 18:03:49,126 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 18:03:49,126 INFO L791 eck$LassoCheckResult]: Stem: 501#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 502#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 503#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 497#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 498#L551-3 [2021-12-06 18:03:49,126 INFO L793 eck$LassoCheckResult]: Loop: 498#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 505#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 498#L551-3 [2021-12-06 18:03:49,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:49,126 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-12-06 18:03:49,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:49,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150204482] [2021-12-06 18:03:49,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:49,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:49,135 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:03:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:49,144 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:03:49,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:49,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 1 times [2021-12-06 18:03:49,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:49,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718514798] [2021-12-06 18:03:49,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:49,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:49,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-06 18:03:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:49,150 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:03:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:49,153 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:03:49,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:49,154 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2021-12-06 18:03:49,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:49,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796935074] [2021-12-06 18:03:49,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:49,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:49,163 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:03:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:49,174 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:03:49,373 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 18:03:49,373 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 18:03:49,373 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 18:03:49,373 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 18:03:49,373 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 18:03:49,373 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:49,373 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 18:03:49,373 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 18:03:49,373 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-2013WST-Fig2-alloca.i_Iteration6_Lasso [2021-12-06 18:03:49,374 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 18:03:49,374 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 18:03:49,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:49,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:49,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:49,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:49,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:49,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:49,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:49,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:49,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:49,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:49,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:49,590 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 18:03:49,590 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 18:03:49,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:49,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:49,591 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:49,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 18:03:49,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:49,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:49,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 18:03:49,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:49,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:49,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:49,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 18:03:49,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 18:03:49,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:49,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 18:03:49,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:49,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:49,639 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:49,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 18:03:49,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:49,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:49,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:49,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:49,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:49,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:49,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:49,654 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:49,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 18:03:49,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:49,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:49,687 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:49,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 18:03:49,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:49,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:49,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 18:03:49,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:49,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:49,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:49,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 18:03:49,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 18:03:49,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:49,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 18:03:49,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:49,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:49,731 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:49,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 18:03:49,732 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:49,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:49,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:49,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:49,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:49,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:49,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:49,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:49,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 18:03:49,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:49,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:49,765 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:49,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 18:03:49,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:49,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:49,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 18:03:49,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:49,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:49,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:49,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 18:03:49,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 18:03:49,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:49,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 18:03:49,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:49,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:49,802 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:49,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 18:03:49,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:49,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:49,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:49,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:49,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:49,812 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:49,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:49,814 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:49,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 18:03:49,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:49,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:49,833 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:49,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 18:03:49,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:49,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:49,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:49,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:49,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:49,845 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:49,845 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:49,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:49,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 18:03:49,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:49,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:49,878 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:49,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 18:03:49,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:49,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:49,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:49,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:49,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:49,890 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:49,890 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:49,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:49,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 18:03:49,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:49,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:49,918 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:49,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 18:03:49,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:49,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:49,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:49,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:49,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:49,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:49,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:49,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:49,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 18:03:49,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:49,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:49,950 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:49,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 18:03:49,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:49,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:49,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 18:03:49,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:49,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:49,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:49,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 18:03:49,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 18:03:49,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:49,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 18:03:49,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:49,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:49,979 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:49,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 18:03:49,980 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:49,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:49,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:49,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:49,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:49,989 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:49,989 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:49,993 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 18:03:50,003 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-06 18:03:50,003 INFO L444 ModelExtractionUtils]: 0 out of 7 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-12-06 18:03:50,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:50,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:50,004 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:50,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 18:03:50,009 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 18:03:50,017 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 18:03:50,017 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 18:03:50,017 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_2 Supporting invariants [] [2021-12-06 18:03:50,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 18:03:50,047 INFO L297 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2021-12-06 18:03:50,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:50,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:03:50,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:03:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:50,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 18:03:50,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:03:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:03:50,081 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 18:03:50,081 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 32 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:50,095 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 32 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 67 states and 72 transitions. Complement of second has 7 states. [2021-12-06 18:03:50,095 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 [2021-12-06 18:03:50,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:50,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-12-06 18:03:50,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-06 18:03:50,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:03:50,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-06 18:03:50,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:03:50,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-12-06 18:03:50,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:03:50,097 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 72 transitions. [2021-12-06 18:03:50,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:03:50,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 52 states and 55 transitions. [2021-12-06 18:03:50,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 18:03:50,100 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-06 18:03:50,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 55 transitions. [2021-12-06 18:03:50,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 18:03:50,100 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 55 transitions. [2021-12-06 18:03:50,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 55 transitions. [2021-12-06 18:03:50,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2021-12-06 18:03:50,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.06) internal successors, (53), 49 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:50,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2021-12-06 18:03:50,105 INFO L704 BuchiCegarLoop]: Abstraction has 50 states and 53 transitions. [2021-12-06 18:03:50,105 INFO L587 BuchiCegarLoop]: Abstraction has 50 states and 53 transitions. [2021-12-06 18:03:50,105 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-06 18:03:50,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 53 transitions. [2021-12-06 18:03:50,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:03:50,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:03:50,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:03:50,107 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 9, 2, 2, 1, 1, 1, 1] [2021-12-06 18:03:50,107 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 18:03:50,107 INFO L791 eck$LassoCheckResult]: Stem: 671#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 672#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 673#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 669#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 670#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 679#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 677#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 678#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 716#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 715#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 714#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 713#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 712#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 711#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 710#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 709#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 708#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 707#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 706#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 705#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 704#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 684#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 685#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 681#L551-1 assume !(main_#t~mem5#1 > 1);havoc main_#t~mem5#1; 680#L551-4 call main_#t~mem7#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem7#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem7#1; 674#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 667#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 668#L551-3 [2021-12-06 18:03:50,107 INFO L793 eck$LassoCheckResult]: Loop: 668#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 676#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 668#L551-3 [2021-12-06 18:03:50,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:50,108 INFO L85 PathProgramCache]: Analyzing trace with hash 423138919, now seen corresponding path program 2 times [2021-12-06 18:03:50,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:50,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956950145] [2021-12-06 18:03:50,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:50,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:50,146 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:03:50,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 18:03:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:50,173 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:03:50,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:50,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 2 times [2021-12-06 18:03:50,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:50,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791514456] [2021-12-06 18:03:50,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:50,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:50,178 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:03:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:50,182 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:03:50,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:50,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1385391412, now seen corresponding path program 3 times [2021-12-06 18:03:50,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:03:50,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911086998] [2021-12-06 18:03:50,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:03:50,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:03:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:50,205 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:03:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:03:50,228 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:03:57,775 WARN L227 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 184 DAG size of output: 156 (called from [L 234] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-12-06 18:03:57,889 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 18:03:57,889 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 18:03:57,889 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 18:03:57,889 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 18:03:57,889 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 18:03:57,889 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:57,889 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 18:03:57,889 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 18:03:57,889 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-2013WST-Fig2-alloca.i_Iteration7_Lasso [2021-12-06 18:03:57,889 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 18:03:57,889 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 18:03:57,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:57,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:57,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:57,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:57,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:57,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:57,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:57,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:57,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:57,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:57,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 18:03:58,079 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 18:03:58,079 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 18:03:58,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:58,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:58,080 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:58,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 18:03:58,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:58,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:58,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 18:03:58,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:58,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:58,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:58,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 18:03:58,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 18:03:58,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:58,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 18:03:58,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:58,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:58,120 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:58,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 18:03:58,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:58,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:58,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:58,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:58,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:58,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:58,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:58,133 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:58,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 18:03:58,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:58,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:58,154 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:58,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 18:03:58,156 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:58,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:58,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 18:03:58,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:58,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:58,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:58,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 18:03:58,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 18:03:58,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:58,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 18:03:58,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:58,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:58,184 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:58,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 18:03:58,186 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:58,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:58,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:58,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:58,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:58,195 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:58,195 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:58,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:58,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 18:03:58,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:58,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:58,219 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:58,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 18:03:58,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:58,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:58,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:58,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:58,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:58,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:58,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:58,234 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:58,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 18:03:58,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:58,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:58,253 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:58,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 18:03:58,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:58,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:58,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:58,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:58,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:58,262 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:58,262 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:58,265 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:58,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-06 18:03:58,283 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:58,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:58,284 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:58,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 18:03:58,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:58,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:58,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:58,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:58,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:58,295 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:58,296 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:58,302 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:58,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 18:03:58,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:58,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:58,321 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:58,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 18:03:58,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:58,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:58,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:58,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:58,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:58,333 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:58,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:58,337 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:58,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 18:03:58,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:58,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:58,356 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:58,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 18:03:58,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:58,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:58,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:58,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:58,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:58,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:58,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:58,368 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:58,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-06 18:03:58,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:58,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:58,387 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:58,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-06 18:03:58,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:58,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:58,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:58,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:58,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:58,397 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:58,397 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:58,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:03:58,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-06 18:03:58,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:58,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:58,419 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:58,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-06 18:03:58,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 18:03:58,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:03:58,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:03:58,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:03:58,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:03:58,429 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:03:58,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:03:58,433 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 18:03:58,440 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-06 18:03:58,440 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-12-06 18:03:58,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:03:58,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:03:58,441 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:03:58,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-06 18:03:58,445 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 18:03:58,454 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 18:03:58,454 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 18:03:58,454 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_3 Supporting invariants [] [2021-12-06 18:03:58,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-06 18:03:58,489 INFO L297 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2021-12-06 18:03:58,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:58,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:03:58,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:03:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:58,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 18:03:58,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:03:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:03:58,555 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 18:03:58,555 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:58,565 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 62 states and 66 transitions. Complement of second has 7 states. [2021-12-06 18:03:58,566 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 [2021-12-06 18:03:58,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:58,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-12-06 18:03:58,566 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 27 letters. Loop has 2 letters. [2021-12-06 18:03:58,566 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:03:58,567 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 18:03:58,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:58,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:03:58,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:03:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:58,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 18:03:58,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:03:58,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:03:58,632 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 18:03:58,632 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:58,641 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 62 states and 66 transitions. Complement of second has 7 states. [2021-12-06 18:03:58,642 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 [2021-12-06 18:03:58,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:58,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-12-06 18:03:58,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 27 letters. Loop has 2 letters. [2021-12-06 18:03:58,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:03:58,642 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 18:03:58,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:03:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:58,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:03:58,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:03:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:03:58,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 18:03:58,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:03:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:03:58,703 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 2 loop predicates [2021-12-06 18:03:58,703 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:58,714 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 73 states and 79 transitions. Complement of second has 6 states. [2021-12-06 18:03:58,715 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 [2021-12-06 18:03:58,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:03:58,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-12-06 18:03:58,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 27 letters. Loop has 2 letters. [2021-12-06 18:03:58,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:03:58,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 29 letters. Loop has 2 letters. [2021-12-06 18:03:58,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:03:58,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 27 letters. Loop has 4 letters. [2021-12-06 18:03:58,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:03:58,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 79 transitions. [2021-12-06 18:03:58,719 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 18:03:58,720 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 0 states and 0 transitions. [2021-12-06 18:03:58,720 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 18:03:58,720 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 18:03:58,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 18:03:58,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:03:58,720 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:03:58,720 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:03:58,720 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:03:58,720 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-06 18:03:58,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 18:03:58,720 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 18:03:58,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 18:03:58,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 06:03:58 BoogieIcfgContainer [2021-12-06 18:03:58,725 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 18:03:58,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:03:58,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:03:58,726 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:03:58,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:03:43" (3/4) ... [2021-12-06 18:03:58,728 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 18:03:58,728 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:03:58,729 INFO L158 Benchmark]: Toolchain (without parser) took 15887.27ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 98.8MB in the beginning and 54.1MB in the end (delta: 44.7MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2021-12-06 18:03:58,729 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:03:58,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.20ms. Allocated memory is still 121.6MB. Free memory was 98.5MB in the beginning and 83.9MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 18:03:58,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.49ms. Allocated memory is still 121.6MB. Free memory was 83.9MB in the beginning and 82.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:03:58,730 INFO L158 Benchmark]: Boogie Preprocessor took 20.10ms. Allocated memory is still 121.6MB. Free memory was 82.1MB in the beginning and 81.1MB in the end (delta: 958.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:03:58,730 INFO L158 Benchmark]: RCFGBuilder took 186.69ms. Allocated memory is still 121.6MB. Free memory was 80.9MB in the beginning and 71.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 18:03:58,731 INFO L158 Benchmark]: BuchiAutomizer took 15389.42ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 71.4MB in the beginning and 54.1MB in the end (delta: 17.3MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2021-12-06 18:03:58,731 INFO L158 Benchmark]: Witness Printer took 2.43ms. Allocated memory is still 146.8MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:03:58,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.20ms. Allocated memory is still 121.6MB. Free memory was 98.5MB in the beginning and 83.9MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.49ms. Allocated memory is still 121.6MB. Free memory was 83.9MB in the beginning and 82.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.10ms. Allocated memory is still 121.6MB. Free memory was 82.1MB in the beginning and 81.1MB in the end (delta: 958.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 186.69ms. Allocated memory is still 121.6MB. Free memory was 80.9MB in the beginning and 71.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 15389.42ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 71.4MB in the beginning and 54.1MB in the end (delta: 17.3MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * Witness Printer took 2.43ms. Allocated memory is still 146.8MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[x1][x1] + 21 and consists of 4 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x2][x2] and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[x2][x2] and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.3s and 8 iterations. TraceHistogramMax:10. Analysis of lassos took 14.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 50 states and ocurred in iteration 6. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 90/90 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 133 IncrementalHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 53 mSDtfsCounter, 133 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital163 mio100 ax111 hnf100 lsp86 ukn65 mio100 lsp38 div100 bol100 ite100 ukn100 eq192 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 18:03:58,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-06 18:03:58,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 18:03:59,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-06 18:03:59,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f3b8b3-c891-4121-9e2a-4492c31dc062/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE