./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/count_down-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/count_down-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be --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 2407fc1341f915e07c0451c9d94952a51e657d88233cd0bc37ed2523188f0c82 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:14:55,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:14:55,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:14:55,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:14:55,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:14:55,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:14:55,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:14:55,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:14:55,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:14:55,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:14:55,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:14:55,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:14:55,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:14:55,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:14:55,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:14:55,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:14:55,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:14:55,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:14:55,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:14:55,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:14:55,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:14:55,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:14:55,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:14:55,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:14:55,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:14:55,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:14:55,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:14:55,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:14:55,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:14:55,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:14:55,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:14:55,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:14:55,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:14:55,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:14:55,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:14:55,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:14:55,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:14:55,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:14:55,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:14:55,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:14:55,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:14:55,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:14:55,433 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:14:55,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:14:55,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:14:55,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:14:55,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:14:55,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:14:55,444 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:14:55,444 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:14:55,444 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:14:55,445 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:14:55,446 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:14:55,446 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:14:55,447 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:14:55,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:14:55,447 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:14:55,447 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:14:55,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:14:55,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:14:55,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:14:55,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:14:55,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:14:55,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:14:55,454 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:14:55,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:14:55,454 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:14:55,455 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:14:55,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:14:55,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:14:55,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:14:55,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:14:55,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:14:55,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:14:55,459 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:14:55,460 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_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2407fc1341f915e07c0451c9d94952a51e657d88233cd0bc37ed2523188f0c82 [2021-10-21 19:14:55,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:14:55,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:14:55,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:14:55,822 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:14:55,823 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:14:55,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/array-memsafety/count_down-alloca-1.i [2021-10-21 19:14:55,920 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/data/2348f693e/4639ccfbb9764a3a89679511262a4509/FLAGce394d429 [2021-10-21 19:14:56,655 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:14:56,656 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/sv-benchmarks/c/array-memsafety/count_down-alloca-1.i [2021-10-21 19:14:56,681 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/data/2348f693e/4639ccfbb9764a3a89679511262a4509/FLAGce394d429 [2021-10-21 19:14:56,886 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/data/2348f693e/4639ccfbb9764a3a89679511262a4509 [2021-10-21 19:14:56,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:14:56,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:14:56,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:14:56,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:14:56,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:14:56,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:14:56" (1/1) ... [2021-10-21 19:14:56,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60644bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:56, skipping insertion in model container [2021-10-21 19:14:56,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:14:56" (1/1) ... [2021-10-21 19:14:56,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:14:56,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:14:57,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:14:57,308 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:14:57,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:14:57,392 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:14:57,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:57 WrapperNode [2021-10-21 19:14:57,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:14:57,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:14:57,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:14:57,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:14:57,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:57" (1/1) ... [2021-10-21 19:14:57,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:57" (1/1) ... [2021-10-21 19:14:57,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:14:57,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:14:57,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:14:57,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:14:57,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:57" (1/1) ... [2021-10-21 19:14:57,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:57" (1/1) ... [2021-10-21 19:14:57,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:57" (1/1) ... [2021-10-21 19:14:57,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:57" (1/1) ... [2021-10-21 19:14:57,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:57" (1/1) ... [2021-10-21 19:14:57,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:57" (1/1) ... [2021-10-21 19:14:57,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:57" (1/1) ... [2021-10-21 19:14:57,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:14:57,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:14:57,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:14:57,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:14:57,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:57" (1/1) ... [2021-10-21 19:14:57,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:57,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:57,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:57,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:14:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:14:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:14:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:14:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:14:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:14:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:14:57,881 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:14:57,882 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:14:57,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:14:57 BoogieIcfgContainer [2021-10-21 19:14:57,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:14:57,885 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:14:57,886 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:14:57,890 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:14:57,891 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:14:57,891 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:14:56" (1/3) ... [2021-10-21 19:14:57,893 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56e3969f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:14:57, skipping insertion in model container [2021-10-21 19:14:57,893 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:14:57,894 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:57" (2/3) ... [2021-10-21 19:14:57,894 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56e3969f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:14:57, skipping insertion in model container [2021-10-21 19:14:57,895 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:14:57,895 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:14:57" (3/3) ... [2021-10-21 19:14:57,897 INFO L389 chiAutomizerObserver]: Analyzing ICFG count_down-alloca-1.i [2021-10-21 19:14:57,951 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:14:57,951 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:14:57,951 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:14:57,951 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:14:57,952 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:14:57,952 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:14:57,952 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:14:57,952 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:14:57,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.5294117647058822) 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) [2021-10-21 19:14:57,996 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-21 19:14:57,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:14:57,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:14:58,004 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-21 19:14:58,004 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 19:14:58,004 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:14:58,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.5294117647058822) 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) [2021-10-21 19:14:58,008 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-21 19:14:58,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:14:58,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:14:58,009 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-21 19:14:58,010 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 19:14:58,018 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_#t~mem8, main_#t~post9, main_#t~mem7, main_#t~post6, main_~i~0, main_~j~0, main_~val~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 19#L516true assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 17#L516-2true call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 13#L518true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 14#L519-3true [2021-10-21 19:14:58,019 INFO L793 eck$LassoCheckResult]: Loop: 14#L519-3true assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet5;havoc main_#t~nondet5; 15#L521true assume main_~val~0 < 0;main_~val~0 := 0; 9#L521-2true call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 10#L519-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 14#L519-3true [2021-10-21 19:14:58,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:58,026 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-10-21 19:14:58,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:58,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208105275] [2021-10-21 19:14:58,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:58,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:58,202 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:58,239 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:58,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:58,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1603878, now seen corresponding path program 1 times [2021-10-21 19:14:58,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:58,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105074218] [2021-10-21 19:14:58,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:58,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:58,260 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:58,275 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:58,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:58,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1182970350, now seen corresponding path program 1 times [2021-10-21 19:14:58,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:58,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132606581] [2021-10-21 19:14:58,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:58,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:58,305 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:58,352 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:58,832 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:14:58,833 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:14:58,833 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:14:58,833 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:14:58,834 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:14:58,834 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:58,834 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:14:58,834 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:14:58,834 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-1.i_Iteration1_Lasso [2021-10-21 19:14:58,835 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:14:58,835 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:14:58,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:58,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:58,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:58,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:58,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:59,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:59,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:59,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:59,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:59,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:59,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:59,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:59,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:59,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:59,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:59,324 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:14:59,329 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:14:59,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:59,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:59,337 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:59,348 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 [2021-10-21 19:14:59,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:59,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:59,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:59,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:59,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:59,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:59,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:59,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:14:59,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:59,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:59,409 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:59,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:59,412 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:59,447 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 [2021-10-21 19:14:59,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:59,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:59,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:59,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:59,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:59,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:59,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:59,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:14:59,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:59,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:59,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:59,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:59,524 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:59,531 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 [2021-10-21 19:14:59,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:59,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:59,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:59,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:59,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:59,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:59,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:59,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:14:59,564 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:59,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:59,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:59,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:59,607 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:59,613 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 [2021-10-21 19:14:59,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:59,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:59,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:59,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:59,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:59,626 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:59,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:59,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:14:59,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:59,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:59,681 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:59,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:59,683 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:59,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:14:59,688 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 [2021-10-21 19:14:59,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:59,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:59,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:59,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:59,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:14:59,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:14:59,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:59,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-21 19:14:59,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:59,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:59,776 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:59,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:14:59,780 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 [2021-10-21 19:14:59,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:59,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:59,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:59,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:59,798 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:14:59,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:14:59,840 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:59,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:59,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:59,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:59,878 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:59,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:14:59,889 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 [2021-10-21 19:14:59,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:59,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:59,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:59,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:59,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:59,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:59,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:59,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:59,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-21 19:14:59,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:59,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:59,955 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:59,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:14:59,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:59,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:59,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:59,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:59,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:59,981 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:14:59,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:00,012 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:15:00,085 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-10-21 19:15:00,085 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-10-21 19:15:00,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:00,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:00,092 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:00,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:15:00,125 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:15:00,137 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:15:00,137 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:15:00,138 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2021-10-21 19:15:00,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:00,193 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-21 19:15:00,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:00,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:15:00,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:00,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:15:00,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:00,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:00,445 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 [2021-10-21 19:15:00,452 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.5294117647058822) 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) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:00,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:00,517 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.5294117647058822) 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). Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 60 transitions. Complement of second has 7 states. [2021-10-21 19:15:00,519 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 [2021-10-21 19:15:00,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:00,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2021-10-21 19:15:00,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-21 19:15:00,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:00,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 9 letters. Loop has 4 letters. [2021-10-21 19:15:00,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:00,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 5 letters. Loop has 8 letters. [2021-10-21 19:15:00,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:00,529 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 60 transitions. [2021-10-21 19:15:00,540 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 19:15:00,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 15 states and 20 transitions. [2021-10-21 19:15:00,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-21 19:15:00,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-21 19:15:00,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2021-10-21 19:15:00,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:15:00,555 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-21 19:15:00,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2021-10-21 19:15:00,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-21 19:15:00,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 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) [2021-10-21 19:15:00,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-10-21 19:15:00,588 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-21 19:15:00,594 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-21 19:15:00,595 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:15:00,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-10-21 19:15:00,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 19:15:00,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:15:00,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:15:00,599 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:00,599 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 19:15:00,600 INFO L791 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 130#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_#t~mem8, main_#t~post9, main_#t~mem7, main_#t~post6, main_~i~0, main_~j~0, main_~val~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 136#L516 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 141#L516-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 137#L518 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 138#L519-3 assume !(main_~i~0 < main_~length~0); 139#L519-4 main_~j~0 := 0; 128#L526-3 [2021-10-21 19:15:00,600 INFO L793 eck$LassoCheckResult]: Loop: 128#L526-3 assume !!(main_~j~0 < main_~length~0); 132#L527-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 131#L527-1 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 127#L526-2 main_#t~post6 := main_~j~0;main_~j~0 := 1 + main_#t~post6;havoc main_#t~post6; 128#L526-3 [2021-10-21 19:15:00,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:00,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815512, now seen corresponding path program 1 times [2021-10-21 19:15:00,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:00,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94015736] [2021-10-21 19:15:00,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:00,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:00,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:00,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:00,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94015736] [2021-10-21 19:15:00,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94015736] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:15:00,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:15:00,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:15:00,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287597899] [2021-10-21 19:15:00,690 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:15:00,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:00,691 INFO L82 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 1 times [2021-10-21 19:15:00,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:00,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316654039] [2021-10-21 19:15:00,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:00,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:00,705 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:00,714 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:00,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:00,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:15:00,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:15:00,783 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:00,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:00,816 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-10-21 19:15:00,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:15:00,817 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2021-10-21 19:15:00,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 19:15:00,819 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2021-10-21 19:15:00,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-21 19:15:00,819 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-21 19:15:00,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2021-10-21 19:15:00,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:15:00,820 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-21 19:15:00,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2021-10-21 19:15:00,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2021-10-21 19:15:00,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:00,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-10-21 19:15:00,822 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-21 19:15:00,822 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-21 19:15:00,823 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:15:00,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2021-10-21 19:15:00,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 19:15:00,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:15:00,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:15:00,828 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:00,829 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 19:15:00,829 INFO L791 eck$LassoCheckResult]: Stem: 171#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 172#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_#t~mem8, main_#t~post9, main_#t~mem7, main_#t~post6, main_~i~0, main_~j~0, main_~val~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 176#L516 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 181#L516-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 177#L518 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 178#L519-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet5;havoc main_#t~nondet5; 179#L521 assume !(main_~val~0 < 0); 173#L521-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 174#L519-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 175#L519-3 assume !(main_~i~0 < main_~length~0); 180#L519-4 main_~j~0 := 0; 168#L526-3 [2021-10-21 19:15:00,829 INFO L793 eck$LassoCheckResult]: Loop: 168#L526-3 assume !!(main_~j~0 < main_~length~0); 170#L527-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 169#L527-1 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 167#L526-2 main_#t~post6 := main_~j~0;main_~j~0 := 1 + main_#t~post6;havoc main_#t~post6; 168#L526-3 [2021-10-21 19:15:00,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:00,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1329979393, now seen corresponding path program 1 times [2021-10-21 19:15:00,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:00,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369206471] [2021-10-21 19:15:00,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:00,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:00,880 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:00,918 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:00,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:00,926 INFO L82 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 2 times [2021-10-21 19:15:00,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:00,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762797392] [2021-10-21 19:15:00,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:00,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:00,942 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:00,956 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:00,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:00,959 INFO L82 PathProgramCache]: Analyzing trace with hash -2035265782, now seen corresponding path program 1 times [2021-10-21 19:15:00,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:00,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287206012] [2021-10-21 19:15:00,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:00,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:00,995 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:01,040 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:01,348 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:15:01,348 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:15:01,349 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:15:01,349 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:15:01,349 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:15:01,349 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:01,349 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:15:01,349 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:15:01,349 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-1.i_Iteration3_Lasso [2021-10-21 19:15:01,349 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:15:01,349 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:15:01,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:01,787 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:15:01,787 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:15:01,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:01,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:01,792 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:01,802 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 [2021-10-21 19:15:01,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:01,812 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:01,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:01,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:01,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:01,813 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:01,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:01,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:15:01,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:01,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:01,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:01,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:01,873 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:01,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:15:01,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:01,889 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:01,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:15:01,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:01,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:01,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:01,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:01,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:01,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:01,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:01,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:01,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:01,944 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:01,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:15:01,946 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 [2021-10-21 19:15:01,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:01,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:01,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:01,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:01,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:01,954 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:01,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:01,956 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:01,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:01,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:01,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:01,979 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:01,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:15:01,982 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 [2021-10-21 19:15:01,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:01,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:01,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:01,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:01,993 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:01,993 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:02,020 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:02,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:02,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:02,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:02,062 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:02,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:15:02,064 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 [2021-10-21 19:15:02,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:02,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:02,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:02,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:02,075 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:02,075 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:02,091 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:02,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:02,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:02,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:02,129 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:02,136 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 [2021-10-21 19:15:02,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:02,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:02,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:02,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:02,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:02,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:02,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:15:02,168 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:02,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:02,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:02,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:02,208 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:02,217 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 [2021-10-21 19:15:02,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:02,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:02,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:02,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:02,232 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:02,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:02,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:15:02,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:02,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:02,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:02,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:02,294 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:02,302 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 [2021-10-21 19:15:02,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:02,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:02,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:02,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:02,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:02,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:02,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:15:02,352 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:15:02,403 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-21 19:15:02,404 INFO L444 ModelExtractionUtils]: 7 out of 25 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-10-21 19:15:02,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:02,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:02,405 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:02,411 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:15:02,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:15:02,434 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:15:02,434 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:15:02,434 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2021-10-21 19:15:02,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:02,490 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-21 19:15:02,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:02,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:15:02,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:02,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:15:02,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:02,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:02,641 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 [2021-10-21 19:15:02,642 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:02,671 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 26 transitions. Complement of second has 4 states. [2021-10-21 19:15:02,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:15:02,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:02,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2021-10-21 19:15:02,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 4 letters. [2021-10-21 19:15:02,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:02,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-21 19:15:02,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:02,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-21 19:15:02,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:02,676 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 26 transitions. [2021-10-21 19:15:02,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:15:02,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 25 transitions. [2021-10-21 19:15:02,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-21 19:15:02,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-21 19:15:02,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2021-10-21 19:15:02,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:15:02,688 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-10-21 19:15:02,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2021-10-21 19:15:02,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-10-21 19:15:02,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 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) [2021-10-21 19:15:02,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-10-21 19:15:02,694 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-10-21 19:15:02,694 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-10-21 19:15:02,694 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:15:02,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2021-10-21 19:15:02,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:15:02,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:15:02,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:15:02,698 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:02,698 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:15:02,698 INFO L791 eck$LassoCheckResult]: Stem: 285#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 286#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_#t~mem8, main_#t~post9, main_#t~mem7, main_#t~post6, main_~i~0, main_~j~0, main_~val~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 291#L516 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 296#L516-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 292#L518 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 293#L519-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet5;havoc main_#t~nondet5; 294#L521 assume !(main_~val~0 < 0); 288#L521-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 289#L519-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 290#L519-3 assume !(main_~i~0 < main_~length~0); 295#L519-4 main_~j~0 := 0; 287#L526-3 assume !!(main_~j~0 < main_~length~0); 282#L527-3 [2021-10-21 19:15:02,699 INFO L793 eck$LassoCheckResult]: Loop: 282#L527-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 281#L527-1 assume !!(main_#t~mem7 > 0);havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post9 := main_#t~mem8;call write~int(main_#t~post9 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem8;havoc main_#t~post9; 282#L527-3 [2021-10-21 19:15:02,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:02,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1720311820, now seen corresponding path program 1 times [2021-10-21 19:15:02,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:02,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228698598] [2021-10-21 19:15:02,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:02,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:02,743 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:02,768 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:02,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:02,771 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 1 times [2021-10-21 19:15:02,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:02,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368174866] [2021-10-21 19:15:02,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:02,772 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:02,787 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:02,798 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:02,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:02,800 INFO L82 PathProgramCache]: Analyzing trace with hash -342748399, now seen corresponding path program 1 times [2021-10-21 19:15:02,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:02,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837998614] [2021-10-21 19:15:02,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:02,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:02,842 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:02,869 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:03,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:03,231 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:15:03,232 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:15:03,232 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:15:03,232 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:15:03,232 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:15:03,232 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:03,232 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:15:03,232 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:15:03,232 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-1.i_Iteration4_Lasso [2021-10-21 19:15:03,232 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:15:03,232 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:15:03,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:03,666 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:15:03,666 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:15:03,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:03,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:03,671 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:03,683 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 [2021-10-21 19:15:03,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:03,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:03,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:03,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:03,695 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:03,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:03,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:15:03,708 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:03,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:03,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:03,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:03,741 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:03,749 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 [2021-10-21 19:15:03,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:15:03,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:03,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:03,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:03,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:03,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:03,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:03,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:03,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:03,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:03,782 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:03,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:03,783 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:03,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:15:03,785 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 [2021-10-21 19:15:03,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:03,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:03,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:03,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:03,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:03,793 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:03,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:03,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:03,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-21 19:15:03,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:03,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:03,815 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:03,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:15:03,818 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 [2021-10-21 19:15:03,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:03,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:03,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:03,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:03,828 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:03,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:03,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:03,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:03,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:03,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:03,879 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:03,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:15:03,881 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 [2021-10-21 19:15:03,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:03,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:03,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:03,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:03,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:03,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:03,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:03,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:03,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:03,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:03,960 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:03,968 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 [2021-10-21 19:15:03,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:03,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:03,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:03,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:03,981 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:03,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:03,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:15:03,996 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:04,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:04,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:04,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:04,035 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:04,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:15:04,038 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 [2021-10-21 19:15:04,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:04,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:04,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:04,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:04,051 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:04,052 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:04,084 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:15:04,098 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-21 19:15:04,098 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-10-21 19:15:04,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:04,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:04,100 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:04,109 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:15:04,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 19:15:04,133 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:15:04,133 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:15:04,134 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) ULTIMATE.start_main_~arr~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) ULTIMATE.start_main_~arr~0.offset)_1 Supporting invariants [] [2021-10-21 19:15:04,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:04,180 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2021-10-21 19:15:04,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:04,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:15:04,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:04,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:15:04,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:04,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:04,315 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 [2021-10-21 19:15:04,316 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9 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) [2021-10-21 19:15:04,361 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9. 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 27 states and 35 transitions. Complement of second has 8 states. [2021-10-21 19:15:04,361 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 [2021-10-21 19:15:04,362 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) [2021-10-21 19:15:04,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-10-21 19:15:04,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 2 letters. [2021-10-21 19:15:04,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:04,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 14 letters. Loop has 2 letters. [2021-10-21 19:15:04,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:04,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 4 letters. [2021-10-21 19:15:04,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:04,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2021-10-21 19:15:04,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:15:04,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 22 states and 28 transitions. [2021-10-21 19:15:04,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-21 19:15:04,368 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-21 19:15:04,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 28 transitions. [2021-10-21 19:15:04,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:15:04,368 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-10-21 19:15:04,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 28 transitions. [2021-10-21 19:15:04,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-10-21 19:15:04,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:04,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2021-10-21 19:15:04,377 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-10-21 19:15:04,377 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-10-21 19:15:04,378 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:15:04,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 27 transitions. [2021-10-21 19:15:04,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:15:04,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:15:04,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:15:04,381 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:04,381 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:15:04,383 INFO L791 eck$LassoCheckResult]: Stem: 419#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 420#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_#t~mem8, main_#t~post9, main_#t~mem7, main_#t~post6, main_~i~0, main_~j~0, main_~val~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 426#L516 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 432#L516-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 427#L518 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 428#L519-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet5;havoc main_#t~nondet5; 429#L521 assume !(main_~val~0 < 0); 423#L521-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 424#L519-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 425#L519-3 assume !(main_~i~0 < main_~length~0); 430#L519-4 main_~j~0 := 0; 421#L526-3 assume !!(main_~j~0 < main_~length~0); 418#L527-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 433#L527-1 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 413#L526-2 main_#t~post6 := main_~j~0;main_~j~0 := 1 + main_#t~post6;havoc main_#t~post6; 414#L526-3 assume !!(main_~j~0 < main_~length~0); 416#L527-3 [2021-10-21 19:15:04,384 INFO L793 eck$LassoCheckResult]: Loop: 416#L527-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 415#L527-1 assume !!(main_#t~mem7 > 0);havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post9 := main_#t~mem8;call write~int(main_#t~post9 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem8;havoc main_#t~post9; 416#L527-3 [2021-10-21 19:15:04,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:04,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1331270241, now seen corresponding path program 2 times [2021-10-21 19:15:04,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:04,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981052715] [2021-10-21 19:15:04,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:04,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:04,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:04,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981052715] [2021-10-21 19:15:04,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981052715] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:15:04,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533506475] [2021-10-21 19:15:04,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:15:04,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:15:04,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:04,480 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:15:04,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-21 19:15:04,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:15:04,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:15:04,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:15:04,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:04,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:04,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:04,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533506475] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:15:04,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:15:04,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-10-21 19:15:04,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966095764] [2021-10-21 19:15:04,693 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:15:04,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:04,693 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 2 times [2021-10-21 19:15:04,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:04,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679201462] [2021-10-21 19:15:04,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:04,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:04,699 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:04,704 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:04,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:04,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:15:04,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:15:04,742 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. cyclomatic complexity: 10 Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:04,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:04,884 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2021-10-21 19:15:04,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:15:04,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 57 transitions. [2021-10-21 19:15:04,893 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:15:04,894 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 28 states and 35 transitions. [2021-10-21 19:15:04,894 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-21 19:15:04,895 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-21 19:15:04,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2021-10-21 19:15:04,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:15:04,895 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2021-10-21 19:15:04,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2021-10-21 19:15:04,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2021-10-21 19:15:04,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.24) internal successors, (31), 24 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) [2021-10-21 19:15:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2021-10-21 19:15:04,899 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-10-21 19:15:04,899 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-10-21 19:15:04,899 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 19:15:04,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2021-10-21 19:15:04,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:15:04,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:15:04,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:15:04,904 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:04,904 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:15:04,904 INFO L791 eck$LassoCheckResult]: Stem: 553#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 554#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_#t~mem8, main_#t~post9, main_#t~mem7, main_#t~post6, main_~i~0, main_~j~0, main_~val~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 561#L516 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 567#L516-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 562#L518 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 563#L519-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet5;havoc main_#t~nondet5; 564#L521 assume !(main_~val~0 < 0); 571#L521-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 559#L519-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 560#L519-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet5;havoc main_#t~nondet5; 565#L521 assume !(main_~val~0 < 0); 557#L521-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 558#L519-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 570#L519-3 assume !(main_~i~0 < main_~length~0); 568#L519-4 main_~j~0 := 0; 555#L526-3 assume !!(main_~j~0 < main_~length~0); 552#L527-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 569#L527-1 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 547#L526-2 main_#t~post6 := main_~j~0;main_~j~0 := 1 + main_#t~post6;havoc main_#t~post6; 548#L526-3 assume !!(main_~j~0 < main_~length~0); 550#L527-3 [2021-10-21 19:15:04,904 INFO L793 eck$LassoCheckResult]: Loop: 550#L527-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 549#L527-1 assume !!(main_#t~mem7 > 0);havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post9 := main_#t~mem8;call write~int(main_#t~post9 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem8;havoc main_#t~post9; 550#L527-3 [2021-10-21 19:15:04,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:04,905 INFO L82 PathProgramCache]: Analyzing trace with hash 34477914, now seen corresponding path program 3 times [2021-10-21 19:15:04,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:04,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583762702] [2021-10-21 19:15:04,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:04,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:04,948 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:04,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:04,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:04,980 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 3 times [2021-10-21 19:15:04,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:04,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541843824] [2021-10-21 19:15:04,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:04,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:04,998 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:05,007 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:05,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:05,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1226461473, now seen corresponding path program 1 times [2021-10-21 19:15:05,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:05,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650120335] [2021-10-21 19:15:05,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:05,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:05,034 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:05,053 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:05,552 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:15:05,552 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:15:05,552 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:15:05,552 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:15:05,552 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:15:05,552 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:05,552 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:15:05,553 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:15:05,553 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-1.i_Iteration6_Lasso [2021-10-21 19:15:05,553 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:15:05,553 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:15:05,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:05,927 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:15:05,927 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:15:05,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:05,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:05,931 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:05,936 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 [2021-10-21 19:15:05,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 19:15:05,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:05,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:05,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:05,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:05,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:05,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:05,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:05,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:05,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:05,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:05,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:05,994 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:05,997 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 [2021-10-21 19:15:06,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,008 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:06,008 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:06,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 19:15:06,048 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:06,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:06,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,079 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 19:15:06,082 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 [2021-10-21 19:15:06,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:06,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:06,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:06,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:06,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-21 19:15:06,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,125 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 19:15:06,127 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 [2021-10-21 19:15:06,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,137 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:06,137 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:06,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:06,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-21 19:15:06,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,161 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 19:15:06,165 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 [2021-10-21 19:15:06,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:06,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:06,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:06,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:06,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:06,201 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,202 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 19:15:06,204 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 [2021-10-21 19:15:06,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:06,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:06,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:06,213 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:06,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:06,237 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,239 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 19:15:06,240 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 [2021-10-21 19:15:06,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:06,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:06,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:06,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:06,288 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,289 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 19:15:06,291 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 [2021-10-21 19:15:06,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,301 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:06,301 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:06,305 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:06,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-21 19:15:06,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,326 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 19:15:06,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:15:06,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,339 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:06,340 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:06,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:06,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-21 19:15:06,373 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,373 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 19:15:06,376 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 [2021-10-21 19:15:06,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:06,392 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:06,402 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:06,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:06,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,438 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-21 19:15:06,440 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 [2021-10-21 19:15:06,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,454 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:06,455 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:06,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:06,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-21 19:15:06,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,512 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-21 19:15:06,514 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 [2021-10-21 19:15:06,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,523 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:06,523 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:06,552 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:06,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:06,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,577 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-21 19:15:06,578 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 [2021-10-21 19:15:06,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,591 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:06,591 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:06,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:06,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:06,642 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,643 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-21 19:15:06,649 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 [2021-10-21 19:15:06,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,658 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:06,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:06,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:06,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-21 19:15:06,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,683 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-21 19:15:06,684 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 [2021-10-21 19:15:06,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:06,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:06,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:06,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:06,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:06,693 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:06,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:06,695 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:15:06,697 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:15:06,697 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 19:15:06,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:06,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:06,698 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:06,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-21 19:15:06,699 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:15:06,699 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:15:06,699 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:15:06,699 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ ULTIMATE.start_main_~arr~0.offset (* ULTIMATE.start_main_~j~0 4)))_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ ULTIMATE.start_main_~arr~0.offset (* ULTIMATE.start_main_~j~0 4)))_1 Supporting invariants [] [2021-10-21 19:15:06,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-21 19:15:06,734 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-10-21 19:15:06,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:06,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:15:06,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:06,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:15:06,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:06,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:06,855 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 [2021-10-21 19:15:06,855 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-21 19:15:06,878 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 29 states and 35 transitions. Complement of second has 7 states. [2021-10-21 19:15:06,878 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 [2021-10-21 19:15:06,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-21 19:15:06,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-10-21 19:15:06,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2021-10-21 19:15:06,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:06,881 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:15:06,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:06,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:15:06,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:06,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:15:06,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:06,973 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:15:06,973 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-21 19:15:06,986 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 29 states and 35 transitions. Complement of second has 7 states. [2021-10-21 19:15:06,987 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 [2021-10-21 19:15:06,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-21 19:15:06,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-10-21 19:15:06,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2021-10-21 19:15:06,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:06,988 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:15:07,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:07,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:15:07,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:07,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:15:07,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:07,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:07,100 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:15:07,100 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-21 19:15:07,121 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 31 states and 39 transitions. Complement of second has 6 states. [2021-10-21 19:15:07,121 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 [2021-10-21 19:15:07,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-21 19:15:07,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-21 19:15:07,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 2 letters. [2021-10-21 19:15:07,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:07,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 22 letters. Loop has 2 letters. [2021-10-21 19:15:07,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:07,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 4 letters. [2021-10-21 19:15:07,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:07,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2021-10-21 19:15:07,125 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:15:07,125 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2021-10-21 19:15:07,125 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:15:07,125 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:15:07,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:15:07,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:15:07,126 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:15:07,126 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:15:07,126 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:15:07,126 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 19:15:07,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:15:07,126 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:15:07,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:15:07,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:15:07 BoogieIcfgContainer [2021-10-21 19:15:07,133 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:15:07,133 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:15:07,133 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:15:07,134 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:15:07,134 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:14:57" (3/4) ... [2021-10-21 19:15:07,137 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:15:07,137 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:15:07,139 INFO L168 Benchmark]: Toolchain (without parser) took 10247.26 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 76.0 MB in the beginning and 35.7 MB in the end (delta: 40.2 MB). Peak memory consumption was 66.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:07,140 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 77.6 MB. Free memory was 50.3 MB in the beginning and 50.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:15:07,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.98 ms. Allocated memory is still 98.6 MB. Free memory was 75.8 MB in the beginning and 60.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:07,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.80 ms. Allocated memory is still 98.6 MB. Free memory was 60.7 MB in the beginning and 58.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:07,141 INFO L168 Benchmark]: Boogie Preprocessor took 30.52 ms. Allocated memory is still 98.6 MB. Free memory was 58.9 MB in the beginning and 57.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:15:07,141 INFO L168 Benchmark]: RCFGBuilder took 406.74 ms. Allocated memory is still 98.6 MB. Free memory was 57.7 MB in the beginning and 72.6 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:07,142 INFO L168 Benchmark]: BuchiAutomizer took 9247.43 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 72.6 MB in the beginning and 35.7 MB in the end (delta: 36.9 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:07,142 INFO L168 Benchmark]: Witness Printer took 4.28 ms. Allocated memory is still 123.7 MB. Free memory is still 35.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:15:07,145 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 77.6 MB. Free memory was 50.3 MB in the beginning and 50.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 497.98 ms. Allocated memory is still 98.6 MB. Free memory was 75.8 MB in the beginning and 60.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.80 ms. Allocated memory is still 98.6 MB. Free memory was 60.7 MB in the beginning and 58.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.52 ms. Allocated memory is still 98.6 MB. Free memory was 58.9 MB in the beginning and 57.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 406.74 ms. Allocated memory is still 98.6 MB. Free memory was 57.7 MB in the beginning and 72.6 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 9247.43 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 72.6 MB in the beginning and 35.7 MB in the end (delta: 36.9 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.28 ms. Allocated memory is still 123.7 MB. Free memory is still 35.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function length + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * j + length and consists of 3 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[arr][arr] and consists of 5 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[arr][arr + j * 4] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.1s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 7.6s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 36.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 110 SDtfs, 153 SDslu, 88 SDs, 0 SdLazy, 164 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 149.1ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital132 mio100 ax113 hnf99 lsp82 ukn77 mio100 lsp56 div100 bol100 ite100 ukn100 eq159 hnf92 smp90 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 58ms VariablesStem: 3 VariablesLoop: 2 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! [2021-10-21 19:15:07,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:07,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-10-21 19:15:07,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a522db8-c3f7-4ef8-bf00-d4a2652ec044/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...