./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfd8ca9d9dda86f57445168715d124831c95b647e7c1b1093bb129b0384cce9e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:34:23,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:34:23,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:34:23,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:34:23,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:34:23,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:34:23,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:34:23,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:34:23,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:34:23,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:34:23,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:34:23,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:34:23,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:34:23,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:34:23,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:34:23,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:34:23,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:34:23,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:34:23,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:34:23,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:34:23,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:34:23,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:34:23,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:34:23,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:34:23,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:34:23,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:34:23,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:34:23,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:34:23,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:34:23,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:34:23,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:34:23,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:34:23,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:34:23,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:34:23,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:34:23,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:34:23,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:34:23,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:34:23,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:34:23,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:34:23,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:34:23,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-23 13:34:23,271 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:34:23,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:34:23,272 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:34:23,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:34:23,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:34:23,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:34:23,274 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:34:23,275 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 13:34:23,275 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 13:34:23,275 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 13:34:23,276 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 13:34:23,277 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 13:34:23,277 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 13:34:23,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:34:23,278 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:34:23,278 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:34:23,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:34:23,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:34:23,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:34:23,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 13:34:23,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 13:34:23,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 13:34:23,280 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:34:23,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:34:23,280 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 13:34:23,281 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:34:23,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 13:34:23,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:34:23,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:34:23,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:34:23,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:34:23,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:34:23,286 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 13:34:23,287 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_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfd8ca9d9dda86f57445168715d124831c95b647e7c1b1093bb129b0384cce9e [2021-11-23 13:34:23,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:34:23,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:34:23,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:34:23,638 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:34:23,639 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:34:23,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i [2021-11-23 13:34:23,721 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/data/9779c36a4/6a6e5ba7a63144599977ea0fc4239784/FLAG32885a1bd [2021-11-23 13:34:24,352 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:34:24,353 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i [2021-11-23 13:34:24,371 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/data/9779c36a4/6a6e5ba7a63144599977ea0fc4239784/FLAG32885a1bd [2021-11-23 13:34:24,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/data/9779c36a4/6a6e5ba7a63144599977ea0fc4239784 [2021-11-23 13:34:24,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:34:24,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:34:24,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:34:24,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:34:24,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:34:24,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:34:24" (1/1) ... [2021-11-23 13:34:24,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5819ad5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:24, skipping insertion in model container [2021-11-23 13:34:24,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:34:24" (1/1) ... [2021-11-23 13:34:24,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:34:24,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:34:25,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:34:25,178 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:34:25,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:34:25,261 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:34:25,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:25 WrapperNode [2021-11-23 13:34:25,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:34:25,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:34:25,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:34:25,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:34:25,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:25" (1/1) ... [2021-11-23 13:34:25,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:25" (1/1) ... [2021-11-23 13:34:25,345 INFO L137 Inliner]: procedures = 117, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2021-11-23 13:34:25,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:34:25,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:34:25,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:34:25,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:34:25,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:25" (1/1) ... [2021-11-23 13:34:25,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:25" (1/1) ... [2021-11-23 13:34:25,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:25" (1/1) ... [2021-11-23 13:34:25,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:25" (1/1) ... [2021-11-23 13:34:25,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:25" (1/1) ... [2021-11-23 13:34:25,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:25" (1/1) ... [2021-11-23 13:34:25,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:25" (1/1) ... [2021-11-23 13:34:25,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:34:25,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:34:25,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:34:25,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:34:25,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:25" (1/1) ... [2021-11-23 13:34:25,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:25,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:25,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:25,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 13:34:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:34:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:34:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:34:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:34:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:34:25,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:34:25,607 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:34:25,609 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:34:25,924 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:34:25,931 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:34:25,932 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 13:34:25,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:34:25 BoogieIcfgContainer [2021-11-23 13:34:25,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:34:25,936 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 13:34:25,936 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 13:34:25,940 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 13:34:25,941 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:34:25,941 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:34:24" (1/3) ... [2021-11-23 13:34:25,951 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ac876ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:34:25, skipping insertion in model container [2021-11-23 13:34:25,951 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:34:25,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:25" (2/3) ... [2021-11-23 13:34:25,952 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ac876ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:34:25, skipping insertion in model container [2021-11-23 13:34:25,952 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:34:25,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:34:25" (3/3) ... [2021-11-23 13:34:25,954 INFO L388 chiAutomizerObserver]: Analyzing ICFG cstrcat-alloca-2.i [2021-11-23 13:34:26,041 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 13:34:26,041 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 13:34:26,041 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 13:34:26,041 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 13:34:26,041 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 13:34:26,042 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 13:34:26,042 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 13:34:26,042 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 13:34:26,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 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) [2021-11-23 13:34:26,077 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-23 13:34:26,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:34:26,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:34:26,086 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-23 13:34:26,086 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:34:26,086 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 13:34:26,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 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) [2021-11-23 13:34:26,089 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-23 13:34:26,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:34:26,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:34:26,090 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-23 13:34:26,091 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:34:26,100 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~0#1, main_#t~nondet15#1, main_#t~post14#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 14#L527true assume !(main_~length1~0#1 < 1); 17#L527-2true assume !(main_~length2~0#1 < 2); 18#L530-1true assume !(main_~length3~0#1 < 1); 13#L533-1true assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 9#L540-3true [2021-11-23 13:34:26,101 INFO L793 eck$LassoCheckResult]: Loop: 9#L540-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet13#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet13#1; 16#L540-2true main_#t~post12#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 9#L540-3true [2021-11-23 13:34:26,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:26,108 INFO L85 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2021-11-23 13:34:26,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:26,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10473769] [2021-11-23 13:34:26,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:26,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:26,274 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:26,351 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:26,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:26,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2021-11-23 13:34:26,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:26,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93225339] [2021-11-23 13:34:26,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:26,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:26,393 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:26,412 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:26,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:26,415 INFO L85 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2021-11-23 13:34:26,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:26,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108575243] [2021-11-23 13:34:26,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:26,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:26,490 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:26,547 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:27,099 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:34:27,100 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:34:27,100 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:34:27,100 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:34:27,101 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:34:27,101 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:27,101 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:34:27,102 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:34:27,102 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration1_Lasso [2021-11-23 13:34:27,102 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:34:27,102 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:34:27,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:27,787 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:34:27,792 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:34:27,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:27,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:27,797 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:27,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:27,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:27,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:27,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:27,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:27,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:27,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:27,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:27,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-23 13:34:27,845 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:27,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:27,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:27,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:27,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:27,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:27,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:27,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:27,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:27,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:27,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:27,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:27,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:27,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-23 13:34:27,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:27,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:27,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:27,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:27,972 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:27,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:27,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:27,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:27,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:27,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:27,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:27,996 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:27,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:27,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-23 13:34:28,013 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:28,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:28,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:28,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:28,059 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:28,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:28,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:28,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:28,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:28,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:28,082 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:28,082 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:28,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-23 13:34:28,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:28,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:28,141 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:28,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:28,143 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:28,149 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:28,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:28,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:28,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:28,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:28,165 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:28,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:28,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-23 13:34:28,185 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:28,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:28,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:28,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:28,231 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:28,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-23 13:34:28,235 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:28,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:28,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:28,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:28,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:28,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:28,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:28,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:28,261 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:28,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:28,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:28,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:28,296 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:28,310 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:28,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-23 13:34:28,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:28,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:28,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:28,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:28,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:28,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:28,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:28,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:28,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:28,360 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:28,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:28,361 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:28,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-23 13:34:28,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:28,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:28,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:28,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:28,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:28,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:28,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:28,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:28,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:28,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:28,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:28,438 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:28,444 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:28,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:28,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:28,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:28,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:28,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:28,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:28,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-23 13:34:28,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:28,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:28,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:28,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:28,537 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:28,543 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:28,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:28,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:28,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:28,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:28,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:28,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:28,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:28,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-23 13:34:28,564 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:28,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:28,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:28,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:28,585 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:28,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:28,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-23 13:34:28,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:28,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:28,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:28,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:28,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:28,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:28,601 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:28,608 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:28,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:28,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:28,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:28,636 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:28,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:28,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:28,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:28,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:28,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:28,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:28,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:28,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-23 13:34:28,685 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:28,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:28,726 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:28,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:28,727 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:28,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:28,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:28,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:28,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:28,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:28,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:28,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:28,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-23 13:34:28,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:28,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:28,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:28,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:28,806 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:28,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-23 13:34:28,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:28,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:28,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:28,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:28,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:28,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:28,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:28,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:28,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:28,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:28,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:28,890 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:28,897 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:28,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:28,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:28,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:28,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:28,922 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:28,923 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:28,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-23 13:34:28,945 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:34:29,030 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-11-23 13:34:29,030 INFO L444 ModelExtractionUtils]: 16 out of 31 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-11-23 13:34:29,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:29,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:29,037 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:29,048 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:34:29,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-23 13:34:29,074 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-23 13:34:29,075 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:34:29,075 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~length1~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-11-23 13:34:29,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:29,135 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-11-23 13:34:29,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:29,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:34:29,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:34:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:29,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 13:34:29,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:34:29,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:29,280 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 [2021-11-23 13:34:29,281 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 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) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:29,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:29,344 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 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). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 52 states and 74 transitions. Complement of second has 7 states. [2021-11-23 13:34:29,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-23 13:34:29,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:29,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 52 transitions. [2021-11-23 13:34:29,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-23 13:34:29,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:34:29,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-23 13:34:29,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:34:29,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-23 13:34:29,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:34:29,355 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 74 transitions. [2021-11-23 13:34:29,360 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-23 13:34:29,363 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 17 states and 24 transitions. [2021-11-23 13:34:29,364 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-23 13:34:29,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-11-23 13:34:29,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2021-11-23 13:34:29,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:34:29,366 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-11-23 13:34:29,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2021-11-23 13:34:29,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-23 13:34:29,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.411764705882353) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:29,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2021-11-23 13:34:29,396 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-11-23 13:34:29,396 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-11-23 13:34:29,396 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-23 13:34:29,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2021-11-23 13:34:29,398 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-23 13:34:29,398 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:34:29,398 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:34:29,398 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:34:29,398 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:34:29,399 INFO L791 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 152#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~0#1, main_#t~nondet15#1, main_#t~post14#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 159#L527 assume !(main_~length1~0#1 < 1); 163#L527-2 assume !(main_~length2~0#1 < 2); 164#L530-1 assume !(main_~length3~0#1 < 1); 162#L533-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 155#L540-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 157#L540-4 main_~i~1#1 := 0; 148#L545-3 [2021-11-23 13:34:29,399 INFO L793 eck$LassoCheckResult]: Loop: 148#L545-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet15#1; 150#L545-2 main_#t~post14#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 148#L545-3 [2021-11-23 13:34:29,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:29,399 INFO L85 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2021-11-23 13:34:29,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:29,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118818678] [2021-11-23 13:34:29,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:29,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:29,411 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:29,425 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:29,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:29,426 INFO L85 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2021-11-23 13:34:29,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:29,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823867812] [2021-11-23 13:34:29,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:29,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:29,432 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:29,439 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:29,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:29,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1713495129, now seen corresponding path program 1 times [2021-11-23 13:34:29,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:29,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746427456] [2021-11-23 13:34:29,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:29,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:29,455 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:29,475 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:29,843 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:34:29,844 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:34:29,844 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:34:29,844 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:34:29,844 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:34:29,844 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:29,844 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:34:29,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:34:29,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration2_Lasso [2021-11-23 13:34:29,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:34:29,844 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:34:29,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:29,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:29,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:29,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:29,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:30,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:30,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:30,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:30,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:30,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:30,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:30,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:30,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:30,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:30,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:30,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:30,408 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:34:30,408 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:34:30,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:30,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:30,418 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:30,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:30,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:30,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:30,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:30,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:30,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:30,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-23 13:34:30,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:30,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:30,453 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:30,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:30,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:30,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:30,482 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:30,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-23 13:34:30,484 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:30,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:30,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:30,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:30,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:30,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:30,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:30,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:30,519 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:30,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:30,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:30,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:30,541 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:30,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-23 13:34:30,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:30,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:30,560 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:30,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:30,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:30,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:30,561 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:30,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:30,562 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:30,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:30,585 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:30,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:30,586 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:30,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-23 13:34:30,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:30,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:30,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:30,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:30,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:30,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:30,598 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:30,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:30,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:30,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:30,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:30,634 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:30,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-23 13:34:30,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:30,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:30,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:30,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:30,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:30,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:30,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:30,681 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:30,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:30,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:30,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:30,725 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:30,729 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:30,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:30,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:30,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:30,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:30,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:30,741 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:30,741 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:30,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-23 13:34:30,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:30,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:30,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:30,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:30,797 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:30,799 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:30,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:30,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:30,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:30,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:30,824 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:30,824 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:30,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-23 13:34:30,853 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:34:30,893 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-11-23 13:34:30,893 INFO L444 ModelExtractionUtils]: 19 out of 34 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-11-23 13:34:30,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:30,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:30,894 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:30,897 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:34:30,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-23 13:34:30,929 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-23 13:34:30,929 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:34:30,929 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nondetString2~0#1.offset, ULTIMATE.start_main_~i~1#1, v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_1) = -1*ULTIMATE.start_main_~nondetString2~0#1.offset - 1*ULTIMATE.start_main_~i~1#1 + 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_1 Supporting invariants [] [2021-11-23 13:34:30,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:30,976 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-11-23 13:34:30,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:31,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:34:31,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:34:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:31,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 13:34:31,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:34:31,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:31,052 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 [2021-11-23 13:34:31,053 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:31,080 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) Result 24 states and 36 transitions. Complement of second has 6 states. [2021-11-23 13:34:31,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-23 13:34:31,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:31,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2021-11-23 13:34:31,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-23 13:34:31,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:34:31,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 10 letters. Loop has 2 letters. [2021-11-23 13:34:31,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:34:31,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2021-11-23 13:34:31,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:34:31,084 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2021-11-23 13:34:31,086 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-11-23 13:34:31,087 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 18 states and 26 transitions. [2021-11-23 13:34:31,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-11-23 13:34:31,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-11-23 13:34:31,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2021-11-23 13:34:31,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:34:31,088 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2021-11-23 13:34:31,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2021-11-23 13:34:31,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-23 13:34:31,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 17 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) [2021-11-23 13:34:31,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2021-11-23 13:34:31,091 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2021-11-23 13:34:31,091 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2021-11-23 13:34:31,091 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-23 13:34:31,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2021-11-23 13:34:31,092 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-11-23 13:34:31,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:34:31,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:34:31,093 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:34:31,093 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:34:31,093 INFO L791 eck$LassoCheckResult]: Stem: 270#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 271#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~0#1, main_#t~nondet15#1, main_#t~post14#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 276#L527 assume !(main_~length1~0#1 < 1); 282#L527-2 assume !(main_~length2~0#1 < 2); 283#L530-1 assume !(main_~length3~0#1 < 1); 281#L533-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 277#L540-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 279#L540-4 main_~i~1#1 := 0; 266#L545-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 267#L545-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length3~0#1 - 1), 1);assume { :begin_inline_cstrcat } true;cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset, cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrcat_#res#1.base, cstrcat_#res#1.offset;havoc cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset, cstrcat_#t~mem2#1, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, cstrcat_#t~mem6#1, cstrcat_~s1#1.base, cstrcat_~s1#1.offset, cstrcat_~s2#1.base, cstrcat_~s2#1.offset, cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s1#1.base, cstrcat_~s1#1.offset := cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset;cstrcat_~s2#1.base, cstrcat_~s2#1.offset := cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_~s1#1.base, cstrcat_~s1#1.offset; 275#L517-3 [2021-11-23 13:34:31,094 INFO L793 eck$LassoCheckResult]: Loop: 275#L517-3 call cstrcat_#t~mem2#1 := read~int(cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset, 1); 274#L517-1 assume !!(0 != cstrcat_#t~mem2#1);havoc cstrcat_#t~mem2#1;cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset := cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_#t~post3#1.base, 1 + cstrcat_#t~post3#1.offset;havoc cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset; 275#L517-3 [2021-11-23 13:34:31,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:31,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1713495071, now seen corresponding path program 1 times [2021-11-23 13:34:31,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:31,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335260687] [2021-11-23 13:34:31,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:31,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:31,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:31,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:34:31,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335260687] [2021-11-23 13:34:31,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335260687] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:34:31,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:34:31,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:34:31,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931120785] [2021-11-23 13:34:31,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:34:31,168 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-23 13:34:31,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:31,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 1 times [2021-11-23 13:34:31,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:31,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566413991] [2021-11-23 13:34:31,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:31,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:31,175 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:31,180 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:31,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:34:31,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:34:31,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:34:31,232 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:31,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:34:31,271 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2021-11-23 13:34:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:34:31,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2021-11-23 13:34:31,274 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-11-23 13:34:31,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 26 transitions. [2021-11-23 13:34:31,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-23 13:34:31,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-11-23 13:34:31,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2021-11-23 13:34:31,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:34:31,276 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-11-23 13:34:31,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2021-11-23 13:34:31,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-11-23 13:34:31,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:31,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2021-11-23 13:34:31,279 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-11-23 13:34:31,280 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-11-23 13:34:31,280 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-23 13:34:31,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2021-11-23 13:34:31,281 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-11-23 13:34:31,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:34:31,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:34:31,282 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:34:31,282 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:34:31,282 INFO L791 eck$LassoCheckResult]: Stem: 314#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 315#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~0#1, main_#t~nondet15#1, main_#t~post14#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 318#L527 assume !(main_~length1~0#1 < 1); 326#L527-2 assume !(main_~length2~0#1 < 2); 327#L530-1 assume !(main_~length3~0#1 < 1); 325#L533-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 319#L540-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 321#L540-4 main_~i~1#1 := 0; 310#L545-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet15#1; 311#L545-2 main_#t~post14#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 312#L545-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 313#L545-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length3~0#1 - 1), 1);assume { :begin_inline_cstrcat } true;cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset, cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrcat_#res#1.base, cstrcat_#res#1.offset;havoc cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset, cstrcat_#t~mem2#1, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, cstrcat_#t~mem6#1, cstrcat_~s1#1.base, cstrcat_~s1#1.offset, cstrcat_~s2#1.base, cstrcat_~s2#1.offset, cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s1#1.base, cstrcat_~s1#1.offset := cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset;cstrcat_~s2#1.base, cstrcat_~s2#1.offset := cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_~s1#1.base, cstrcat_~s1#1.offset; 324#L517-3 [2021-11-23 13:34:31,283 INFO L793 eck$LassoCheckResult]: Loop: 324#L517-3 call cstrcat_#t~mem2#1 := read~int(cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset, 1); 323#L517-1 assume !!(0 != cstrcat_#t~mem2#1);havoc cstrcat_#t~mem2#1;cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset := cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_#t~post3#1.base, 1 + cstrcat_#t~post3#1.offset;havoc cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset; 324#L517-3 [2021-11-23 13:34:31,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:31,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1696346049, now seen corresponding path program 1 times [2021-11-23 13:34:31,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:31,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67075360] [2021-11-23 13:34:31,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:31,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:31,302 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:31,325 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 2 times [2021-11-23 13:34:31,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:31,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215881583] [2021-11-23 13:34:31,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:31,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:31,332 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:31,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:31,338 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:31,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:31,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1899017530, now seen corresponding path program 1 times [2021-11-23 13:34:31,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:31,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438773818] [2021-11-23 13:34:31,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:31,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:31,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:31,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:34:31,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438773818] [2021-11-23 13:34:31,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438773818] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:34:31,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79283704] [2021-11-23 13:34:31,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:31,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:34:31,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:31,705 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:34:31,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-23 13:34:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:31,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 13:34:31,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:34:32,144 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-11-23 13:34:32,145 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 1 case distinctions, treesize of input 54 treesize of output 38 [2021-11-23 13:34:32,338 INFO L354 Elim1Store]: treesize reduction 42, result has 6.7 percent of original size [2021-11-23 13:34:32,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 33 [2021-11-23 13:34:32,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:32,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:34:32,454 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:34:32,455 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 31 [2021-11-23 13:34:32,467 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:34:32,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2021-11-23 13:34:32,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 26 treesize of output 24 [2021-11-23 13:34:32,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 4 [2021-11-23 13:34:32,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:32,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79283704] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:34:32,874 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:34:32,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2021-11-23 13:34:32,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690797175] [2021-11-23 13:34:32,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:34:32,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:34:32,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-23 13:34:32,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2021-11-23 13:34:32,923 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand has 21 states, 20 states have (on average 1.55) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:33,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:34:33,375 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions. [2021-11-23 13:34:33,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 13:34:33,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2021-11-23 13:34:33,377 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-11-23 13:34:33,378 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 33 transitions. [2021-11-23 13:34:33,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-11-23 13:34:33,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-11-23 13:34:33,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 33 transitions. [2021-11-23 13:34:33,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:34:33,379 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2021-11-23 13:34:33,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 33 transitions. [2021-11-23 13:34:33,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-11-23 13:34:33,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:33,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2021-11-23 13:34:33,387 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2021-11-23 13:34:33,387 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2021-11-23 13:34:33,387 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-23 13:34:33,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 31 transitions. [2021-11-23 13:34:33,388 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-11-23 13:34:33,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:34:33,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:34:33,389 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:34:33,389 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:34:33,389 INFO L791 eck$LassoCheckResult]: Stem: 474#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 475#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~0#1, main_#t~nondet15#1, main_#t~post14#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 479#L527 assume !(main_~length1~0#1 < 1); 485#L527-2 assume !(main_~length2~0#1 < 2); 486#L530-1 assume !(main_~length3~0#1 < 1); 484#L533-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 480#L540-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 482#L540-4 main_~i~1#1 := 0; 469#L545-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet15#1; 470#L545-2 main_#t~post14#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 471#L545-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 472#L545-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length3~0#1 - 1), 1);assume { :begin_inline_cstrcat } true;cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset, cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrcat_#res#1.base, cstrcat_#res#1.offset;havoc cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset, cstrcat_#t~mem2#1, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, cstrcat_#t~mem6#1, cstrcat_~s1#1.base, cstrcat_~s1#1.offset, cstrcat_~s2#1.base, cstrcat_~s2#1.offset, cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s1#1.base, cstrcat_~s1#1.offset := cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset;cstrcat_~s2#1.base, cstrcat_~s2#1.offset := cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_~s1#1.base, cstrcat_~s1#1.offset; 490#L517-3 call cstrcat_#t~mem2#1 := read~int(cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset, 1); 478#L517-1 assume !(0 != cstrcat_#t~mem2#1);havoc cstrcat_#t~mem2#1; 476#L519-2 [2021-11-23 13:34:33,390 INFO L793 eck$LassoCheckResult]: Loop: 476#L519-2 cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset := cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_#t~post4#1.base, 1 + cstrcat_#t~post4#1.offset;cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset := cstrcat_~s2#1.base, cstrcat_~s2#1.offset;cstrcat_~s2#1.base, cstrcat_~s2#1.offset := cstrcat_#t~post5#1.base, 1 + cstrcat_#t~post5#1.offset;call cstrcat_#t~mem6#1 := read~int(cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, 1);call write~int(cstrcat_#t~mem6#1, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, 1); 477#L519 assume !!(0 != cstrcat_#t~mem6#1);havoc cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset;havoc cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset;havoc cstrcat_#t~mem6#1; 476#L519-2 [2021-11-23 13:34:33,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:33,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1899017532, now seen corresponding path program 1 times [2021-11-23 13:34:33,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:33,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855820831] [2021-11-23 13:34:33,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:33,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:33,410 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:33,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:33,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:33,431 INFO L85 PathProgramCache]: Analyzing trace with hash 3206, now seen corresponding path program 1 times [2021-11-23 13:34:33,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:33,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521439709] [2021-11-23 13:34:33,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:33,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:33,437 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:33,443 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:33,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:33,444 INFO L85 PathProgramCache]: Analyzing trace with hash 405254793, now seen corresponding path program 1 times [2021-11-23 13:34:33,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:33,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944077158] [2021-11-23 13:34:33,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:33,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:34:33,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:34:33,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944077158] [2021-11-23 13:34:33,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944077158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:34:33,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:34:33,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 13:34:33,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334023110] [2021-11-23 13:34:33,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:34:33,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:34:33,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 13:34:33,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:34:33,779 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. cyclomatic complexity: 12 Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 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) [2021-11-23 13:34:33,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:34:33,868 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2021-11-23 13:34:33,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:34:33,869 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2021-11-23 13:34:33,870 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-23 13:34:33,871 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 33 states and 42 transitions. [2021-11-23 13:34:33,871 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-11-23 13:34:33,871 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-11-23 13:34:33,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 42 transitions. [2021-11-23 13:34:33,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:34:33,872 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 42 transitions. [2021-11-23 13:34:33,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 42 transitions. [2021-11-23 13:34:33,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2021-11-23 13:34:33,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.28125) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:33,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2021-11-23 13:34:33,877 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2021-11-23 13:34:33,877 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2021-11-23 13:34:33,877 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-23 13:34:33,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 41 transitions. [2021-11-23 13:34:33,878 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-23 13:34:33,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:34:33,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:34:33,879 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:34:33,879 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-23 13:34:33,880 INFO L791 eck$LassoCheckResult]: Stem: 551#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 552#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~0#1, main_#t~nondet15#1, main_#t~post14#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 562#L527 assume !(main_~length1~0#1 < 1); 564#L527-2 assume !(main_~length2~0#1 < 2); 565#L530-1 assume !(main_~length3~0#1 < 1); 563#L533-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 555#L540-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 557#L540-4 main_~i~1#1 := 0; 566#L545-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet15#1; 574#L545-2 main_#t~post14#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 573#L545-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet15#1; 572#L545-2 main_#t~post14#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 571#L545-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 570#L545-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length3~0#1 - 1), 1);assume { :begin_inline_cstrcat } true;cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset, cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrcat_#res#1.base, cstrcat_#res#1.offset;havoc cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset, cstrcat_#t~mem2#1, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, cstrcat_#t~mem6#1, cstrcat_~s1#1.base, cstrcat_~s1#1.offset, cstrcat_~s2#1.base, cstrcat_~s2#1.offset, cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s1#1.base, cstrcat_~s1#1.offset := cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset;cstrcat_~s2#1.base, cstrcat_~s2#1.offset := cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_~s1#1.base, cstrcat_~s1#1.offset; 561#L517-3 [2021-11-23 13:34:33,880 INFO L793 eck$LassoCheckResult]: Loop: 561#L517-3 call cstrcat_#t~mem2#1 := read~int(cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset, 1); 560#L517-1 assume !!(0 != cstrcat_#t~mem2#1);havoc cstrcat_#t~mem2#1;cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset := cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_#t~post3#1.base, 1 + cstrcat_#t~post3#1.offset;havoc cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset; 561#L517-3 [2021-11-23 13:34:33,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:33,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1898962205, now seen corresponding path program 2 times [2021-11-23 13:34:33,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:33,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583731387] [2021-11-23 13:34:33,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:33,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:33,895 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:33,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:33,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:33,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 3 times [2021-11-23 13:34:33,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:33,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67399325] [2021-11-23 13:34:33,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:33,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:33,918 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:33,922 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:33,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:33,923 INFO L85 PathProgramCache]: Analyzing trace with hash 458423656, now seen corresponding path program 2 times [2021-11-23 13:34:33,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:34:33,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448628850] [2021-11-23 13:34:33,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:34:33,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:34:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:33,940 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:34:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:34:33,962 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:34:35,309 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 13:34:35,309 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 13:34:35,309 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 13:34:35,310 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 13:34:35,310 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 13:34:35,310 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:35,310 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 13:34:35,310 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 13:34:35,310 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration6_Lasso [2021-11-23 13:34:35,310 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 13:34:35,310 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 13:34:35,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:35,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 13:34:36,343 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 13:34:36,343 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 13:34:36,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,345 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-23 13:34:36,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,383 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:36,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:36,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:36,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,423 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-23 13:34:36,426 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:36,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:36,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:36,435 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:36,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,461 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-23 13:34:36,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:36,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,471 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:36,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:36,481 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:36,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,502 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-23 13:34:36,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:36,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:36,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:36,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-11-23 13:34:36,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,535 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-23 13:34:36,541 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:36,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:36,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:36,553 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:36,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,575 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-23 13:34:36,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:36,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:36,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:36,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-11-23 13:34:36,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,608 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-23 13:34:36,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,619 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:36,619 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:36,622 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:36,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,658 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-23 13:34:36,660 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:36,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:36,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:36,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:36,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,691 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-23 13:34:36,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:36,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:36,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:36,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:36,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,742 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-23 13:34:36,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:36,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:36,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:36,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:36,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,775 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-23 13:34:36,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:36,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:36,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:36,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:36,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,809 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-23 13:34:36,811 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,820 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:36,820 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:36,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:36,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,853 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-23 13:34:36,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:36,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:36,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:36,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-11-23 13:34:36,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,886 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-23 13:34:36,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:36,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:36,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:36,896 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-11-23 13:34:36,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,919 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-23 13:34:36,923 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:36,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:36,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:36,937 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:36,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-11-23 13:34:36,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:36,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:36,960 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:36,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-23 13:34:36,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:36,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:36,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:36,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:36,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:36,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:36,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:36,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:37,001 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:37,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-11-23 13:34:37,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:37,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:37,036 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:37,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-23 13:34:37,040 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:37,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:37,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:37,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:37,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:37,053 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:37,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:37,064 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:37,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:37,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:37,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:37,087 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:37,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-23 13:34:37,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:37,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:37,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:37,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:37,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:37,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:37,098 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:37,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:37,100 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:37,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:37,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:37,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:37,123 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:37,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-11-23 13:34:37,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:37,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:37,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:37,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:37,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:37,136 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:37,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:37,148 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:37,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-11-23 13:34:37,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:37,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:37,171 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:37,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-11-23 13:34:37,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:37,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:37,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:37,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:37,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:37,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:37,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:37,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:37,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:37,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:37,220 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:37,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:37,221 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:37,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-11-23 13:34:37,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:37,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:37,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 13:34:37,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:37,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:37,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:37,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 13:34:37,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 13:34:37,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:37,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:37,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:37,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:37,254 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:37,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-11-23 13:34:37,255 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:37,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:37,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:37,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:37,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:37,264 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:37,264 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:37,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:37,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-11-23 13:34:37,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:37,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:37,290 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:37,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-11-23 13:34:37,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:37,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:37,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:37,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:37,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:37,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:37,315 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:37,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:37,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-11-23 13:34:37,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:37,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:37,354 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:37,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-11-23 13:34:37,355 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:37,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:37,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:37,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:37,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:37,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:37,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:37,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:37,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:37,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:37,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:37,391 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:37,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:37,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-11-23 13:34:37,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:37,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:37,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:37,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:37,403 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:37,403 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:37,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:37,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-11-23 13:34:37,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:37,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:37,432 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:37,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-11-23 13:34:37,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:37,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:37,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:37,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:37,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:37,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:37,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:37,454 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 13:34:37,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:37,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:37,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:37,475 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:37,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-11-23 13:34:37,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 13:34:37,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 13:34:37,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 13:34:37,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 13:34:37,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 13:34:37,498 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 13:34:37,498 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 13:34:37,519 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 13:34:37,562 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-11-23 13:34:37,562 INFO L444 ModelExtractionUtils]: 13 out of 55 variables were initially zero. Simplification set additionally 39 variables to zero. [2021-11-23 13:34:37,563 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:34:37,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:34:37,564 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:34:37,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-11-23 13:34:37,565 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 13:34:37,574 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-23 13:34:37,574 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 13:34:37,574 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcat_~s~0#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc11#1.base)_3) = -1*ULTIMATE.start_cstrcat_~s~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc11#1.base)_3 Supporting invariants [] [2021-11-23 13:34:37,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:37,632 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2021-11-23 13:34:37,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:34:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:37,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 13:34:37,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:34:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:34:37,735 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:34:37,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:34:37,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:34:37,760 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-11-23 13:34:37,760 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:37,799 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) Result 40 states and 52 transitions. Complement of second has 7 states. [2021-11-23 13:34:37,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-23 13:34:37,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:34:37,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2021-11-23 13:34:37,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 14 letters. Loop has 2 letters. [2021-11-23 13:34:37,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:34:37,802 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 16 letters. Loop has 2 letters. [2021-11-23 13:34:37,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:34:37,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 14 letters. Loop has 4 letters. [2021-11-23 13:34:37,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 13:34:37,803 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 52 transitions. [2021-11-23 13:34:37,804 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-23 13:34:37,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2021-11-23 13:34:37,805 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-23 13:34:37,805 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-23 13:34:37,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-23 13:34:37,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 13:34:37,806 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:34:37,806 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:34:37,806 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:34:37,806 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-23 13:34:37,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-23 13:34:37,806 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-23 13:34:37,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-23 13:34:37,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 01:34:37 BoogieIcfgContainer [2021-11-23 13:34:37,814 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-23 13:34:37,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:34:37,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:34:37,816 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:34:37,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:34:25" (3/4) ... [2021-11-23 13:34:37,820 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 13:34:37,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:34:37,821 INFO L158 Benchmark]: Toolchain (without parser) took 13200.74ms. Allocated memory was 90.2MB in the beginning and 142.6MB in the end (delta: 52.4MB). Free memory was 63.0MB in the beginning and 65.9MB in the end (delta: -2.9MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2021-11-23 13:34:37,822 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 90.2MB. Free memory was 60.5MB in the beginning and 60.4MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:34:37,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 638.87ms. Allocated memory is still 90.2MB. Free memory was 62.8MB in the beginning and 59.0MB in the end (delta: 3.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:34:37,823 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.03ms. Allocated memory is still 90.2MB. Free memory was 59.0MB in the beginning and 56.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:34:37,823 INFO L158 Benchmark]: Boogie Preprocessor took 56.15ms. Allocated memory is still 90.2MB. Free memory was 56.9MB in the beginning and 55.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:34:37,824 INFO L158 Benchmark]: RCFGBuilder took 529.92ms. Allocated memory is still 90.2MB. Free memory was 55.6MB in the beginning and 44.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:34:37,824 INFO L158 Benchmark]: BuchiAutomizer took 11878.55ms. Allocated memory was 90.2MB in the beginning and 142.6MB in the end (delta: 52.4MB). Free memory was 44.2MB in the beginning and 66.9MB in the end (delta: -22.7MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2021-11-23 13:34:37,825 INFO L158 Benchmark]: Witness Printer took 5.12ms. Allocated memory is still 142.6MB. Free memory was 66.9MB in the beginning and 65.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:34:37,827 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 90.2MB. Free memory was 60.5MB in the beginning and 60.4MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 638.87ms. Allocated memory is still 90.2MB. Free memory was 62.8MB in the beginning and 59.0MB in the end (delta: 3.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.03ms. Allocated memory is still 90.2MB. Free memory was 59.0MB in the beginning and 56.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.15ms. Allocated memory is still 90.2MB. Free memory was 56.9MB in the beginning and 55.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.92ms. Allocated memory is still 90.2MB. Free memory was 55.6MB in the beginning and 44.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 11878.55ms. Allocated memory was 90.2MB in the beginning and 142.6MB in the end (delta: 52.4MB). Free memory was 44.2MB in the beginning and 66.9MB in the end (delta: -22.7MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * Witness Printer took 5.12ms. Allocated memory is still 142.6MB. Free memory was 66.9MB in the beginning and 65.9MB in the end (delta: 1.0MB). 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 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * nondetString2 + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 21 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.7s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 10.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 32 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 159 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 335 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 11 IncrementalHoareTripleChecker+Unchecked, 231 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 225 IncrementalHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 104 mSDtfsCounter, 225 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital174 mio100 ax111 hnf99 lsp83 ukn78 mio100 lsp59 div100 bol100 ite100 ukn100 eq165 hnf90 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms 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! [2021-11-23 13:34:37,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:38,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-23 13:34:38,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5145e316-cdba-4c53-9b24-8f128373e0d8/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE