./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY --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 03931b69e9073178e54f20b91a2b2a66154a89c69758aa4d312927278c5c0104 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:11:50,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:11:50,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:11:50,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:11:50,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:11:50,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:11:50,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:11:50,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:11:50,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:11:50,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:11:50,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:11:50,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:11:50,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:11:50,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:11:50,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:11:50,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:11:50,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:11:50,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:11:50,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:11:50,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:11:50,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:11:50,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:11:50,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:11:50,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:11:50,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:11:50,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:11:50,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:11:50,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:11:50,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:11:50,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:11:50,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:11:50,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:11:50,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:11:50,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:11:50,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:11:50,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:11:50,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:11:50,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:11:50,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:11:50,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:11:50,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:11:50,434 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-07 08:11:50,485 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:11:50,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:11:50,486 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:11:50,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:11:50,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:11:50,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:11:50,488 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:11:50,489 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 08:11:50,489 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 08:11:50,489 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 08:11:50,490 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 08:11:50,491 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 08:11:50,491 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 08:11:50,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:11:50,491 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:11:50,492 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:11:50,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:11:50,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:11:50,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:11:50,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 08:11:50,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 08:11:50,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 08:11:50,493 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:11:50,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:11:50,494 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 08:11:50,494 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:11:50,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 08:11:50,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:11:50,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:11:50,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:11:50,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:11:50,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:11:50,498 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 08:11:50,499 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_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03931b69e9073178e54f20b91a2b2a66154a89c69758aa4d312927278c5c0104 [2021-11-07 08:11:50,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:11:50,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:11:50,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:11:50,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:11:50,795 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:11:50,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2021-11-07 08:11:50,867 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/data/cc89714ca/63304e280a7743a398a7ec1a32bffbf6/FLAGccfb1d473 [2021-11-07 08:11:51,370 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:11:51,370 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2021-11-07 08:11:51,377 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/data/cc89714ca/63304e280a7743a398a7ec1a32bffbf6/FLAGccfb1d473 [2021-11-07 08:11:51,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/data/cc89714ca/63304e280a7743a398a7ec1a32bffbf6 [2021-11-07 08:11:51,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:11:51,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:11:51,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:11:51,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:11:51,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:11:51,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:11:51" (1/1) ... [2021-11-07 08:11:51,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b89f3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:51, skipping insertion in model container [2021-11-07 08:11:51,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:11:51" (1/1) ... [2021-11-07 08:11:51,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:11:51,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:11:51,991 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i[809,822] [2021-11-07 08:11:52,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:11:52,009 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:11:52,020 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i[809,822] [2021-11-07 08:11:52,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:11:52,040 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:11:52,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:52 WrapperNode [2021-11-07 08:11:52,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:11:52,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:11:52,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:11:52,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:11:52,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:52" (1/1) ... [2021-11-07 08:11:52,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:52" (1/1) ... [2021-11-07 08:11:52,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:11:52,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:11:52,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:11:52,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:11:52,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:52" (1/1) ... [2021-11-07 08:11:52,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:52" (1/1) ... [2021-11-07 08:11:52,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:52" (1/1) ... [2021-11-07 08:11:52,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:52" (1/1) ... [2021-11-07 08:11:52,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:52" (1/1) ... [2021-11-07 08:11:52,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:52" (1/1) ... [2021-11-07 08:11:52,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:52" (1/1) ... [2021-11-07 08:11:52,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:11:52,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:11:52,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:11:52,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:11:52,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:52" (1/1) ... [2021-11-07 08:11:52,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:52,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:52,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:52,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 08:11:52,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:11:52,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:11:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:11:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:11:52,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:11:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:11:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:11:52,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:11:52,388 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-07 08:11:52,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:11:52 BoogieIcfgContainer [2021-11-07 08:11:52,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:11:52,391 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 08:11:52,391 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 08:11:52,404 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 08:11:52,405 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:11:52,405 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 08:11:51" (1/3) ... [2021-11-07 08:11:52,412 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4765a7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:11:52, skipping insertion in model container [2021-11-07 08:11:52,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:11:52,413 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:11:52" (2/3) ... [2021-11-07 08:11:52,413 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4765a7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:11:52, skipping insertion in model container [2021-11-07 08:11:52,413 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:11:52,413 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:11:52" (3/3) ... [2021-11-07 08:11:52,414 INFO L389 chiAutomizerObserver]: Analyzing ICFG array_shadowinit.i [2021-11-07 08:11:52,482 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 08:11:52,482 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 08:11:52,483 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 08:11:52,483 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 08:11:52,483 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 08:11:52,483 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 08:11:52,483 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 08:11:52,484 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 08:11:52,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 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) [2021-11-07 08:11:52,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-07 08:11:52,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:11:52,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:11:52,535 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-07 08:11:52,535 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-07 08:11:52,535 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 08:11:52,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 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) [2021-11-07 08:11:52,537 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-07 08:11:52,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:11:52,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:11:52,538 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-07 08:11:52,538 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-07 08:11:52,543 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 6#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 7#L18true assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 12#L23-2true [2021-11-07 08:11:52,543 INFO L793 eck$LassoCheckResult]: Loop: 12#L23-2true assume !!(main_~i~0 < ~N~0);call write~int(main_~k~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~k~0, 4);main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 12#L23-2true [2021-11-07 08:11:52,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:52,549 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-07 08:11:52,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:52,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499258089] [2021-11-07 08:11:52,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:52,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:52,654 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:52,699 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:52,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:52,704 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2021-11-07 08:11:52,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:52,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357340543] [2021-11-07 08:11:52,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:52,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:52,730 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:52,749 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:52,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:52,758 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2021-11-07 08:11:52,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:52,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542961789] [2021-11-07 08:11:52,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:52,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:52,813 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:52,864 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:53,452 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:53,453 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:53,453 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:53,453 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:53,453 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:11:53,453 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:53,453 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:53,454 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:53,454 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration1_Lasso [2021-11-07 08:11:53,454 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:53,454 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:53,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:53,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:53,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:53,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:53,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:53,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:53,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:53,953 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:53,958 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:11:53,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:53,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:53,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:53,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:53,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:53,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:53,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:53,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:53,993 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:11:53,993 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:11:53,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 08:11:53,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:54,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:54,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:54,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:54,040 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:54,046 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:54,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:54,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:54,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:54,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:54,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:11:54,064 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:11:54,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 08:11:54,071 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:54,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:54,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:54,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:54,107 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:54,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:54,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:54,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:54,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:54,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:54,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 08:11:54,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:11:54,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:11:54,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:54,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-07 08:11:54,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:54,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:54,162 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:54,180 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:54,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:54,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:54,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:54,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:54,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:11:54,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:11:54,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 08:11:54,202 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:54,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:54,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:54,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:54,247 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:54,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-07 08:11:54,256 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:54,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:54,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:54,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:54,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:54,267 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:11:54,267 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:11:54,282 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:54,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:54,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:54,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:54,320 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:54,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-07 08:11:54,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:54,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:54,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:54,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:54,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:54,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:54,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:54,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:54,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:54,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:54,387 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:54,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:54,388 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:54,395 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:54,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:54,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:54,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:54,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:54,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-07 08:11:54,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:11:54,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:11:54,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:54,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:54,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:54,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:54,457 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:54,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-07 08:11:54,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:54,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:54,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:54,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:54,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:54,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:11:54,470 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:11:54,495 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:54,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-11-07 08:11:54,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:54,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:54,518 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:54,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-07 08:11:54,520 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:54,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:54,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:54,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:54,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:54,531 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:11:54,531 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:11:54,554 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:54,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:54,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:54,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:54,580 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:54,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-07 08:11:54,584 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:54,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:54,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:54,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:54,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:54,593 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:11:54,594 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:11:54,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:54,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:54,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:54,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:54,640 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:54,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-07 08:11:54,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:54,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:54,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:54,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:54,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:54,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:11:54,652 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:11:54,686 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:54,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:54,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:54,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:54,727 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:54,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:54,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-07 08:11:54,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:54,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:54,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:54,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:54,752 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:11:54,752 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:11:54,772 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:11:54,832 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-11-07 08:11:54,832 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-11-07 08:11:54,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:54,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:54,859 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:54,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-07 08:11:54,923 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:11:54,944 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-07 08:11:54,944 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:11:54,945 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, v_rep(select #length ULTIMATE.start_main_~#a~0.base)_1) = -4*ULTIMATE.start_main_~k~0 + 1*v_rep(select #length ULTIMATE.start_main_~#a~0.base)_1 Supporting invariants [1*ULTIMATE.start_main_~#a~0.offset >= 0] [2021-11-07 08:11:55,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:55,034 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2021-11-07 08:11:55,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:55,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 08:11:55,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:55,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 08:11:55,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:55,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:11:55,130 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-07 08:11:55,131 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:55,186 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 45 transitions. Complement of second has 6 states. [2021-11-07 08:11:55,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-07 08:11:55,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:55,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2021-11-07 08:11:55,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-07 08:11:55,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:55,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 4 letters. Loop has 1 letters. [2021-11-07 08:11:55,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:55,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-07 08:11:55,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:55,193 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2021-11-07 08:11:55,196 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 08:11:55,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 9 states and 11 transitions. [2021-11-07 08:11:55,200 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-11-07 08:11:55,201 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-07 08:11:55,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2021-11-07 08:11:55,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:11:55,202 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-11-07 08:11:55,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2021-11-07 08:11:55,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-07 08:11:55,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:55,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2021-11-07 08:11:55,226 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-11-07 08:11:55,226 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-11-07 08:11:55,226 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 08:11:55,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2021-11-07 08:11:55,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 08:11:55,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:11:55,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:11:55,228 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-07 08:11:55,228 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:11:55,228 INFO L791 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 127#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 122#L18 assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 123#L23-2 assume !(main_~i~0 < ~N~0); 128#L23-3 main_~i~0 := 0; 130#L29-2 [2021-11-07 08:11:55,229 INFO L793 eck$LassoCheckResult]: Loop: 130#L29-2 assume !!(main_~i~0 < ~N~0);call main_#t~mem4 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem4 == main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 124#L13 assume !(0 == __VERIFIER_assert_~cond); 125#L13-3 havoc main_#t~mem4;main_~i~0 := 1 + main_~i~0; 130#L29-2 [2021-11-07 08:11:55,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:55,229 INFO L85 PathProgramCache]: Analyzing trace with hash 28693928, now seen corresponding path program 1 times [2021-11-07 08:11:55,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:55,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15198579] [2021-11-07 08:11:55,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:55,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:55,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:11:55,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:11:55,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15198579] [2021-11-07 08:11:55,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15198579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:11:55,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:11:55,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:11:55,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057770311] [2021-11-07 08:11:55,298 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 08:11:55,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:55,299 INFO L85 PathProgramCache]: Analyzing trace with hash 56828, now seen corresponding path program 1 times [2021-11-07 08:11:55,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:55,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829733343] [2021-11-07 08:11:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:55,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:55,318 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:55,325 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:55,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:11:55,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:11:55,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:11:55,409 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:55,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:11:55,425 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-11-07 08:11:55,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:11:55,426 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-11-07 08:11:55,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 08:11:55,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2021-11-07 08:11:55,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-11-07 08:11:55,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-11-07 08:11:55,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-11-07 08:11:55,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:11:55,427 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-11-07 08:11:55,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-11-07 08:11:55,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-07 08:11:55,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:55,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-11-07 08:11:55,429 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-11-07 08:11:55,429 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-11-07 08:11:55,429 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-07 08:11:55,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2021-11-07 08:11:55,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-07 08:11:55,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:11:55,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:11:55,430 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-07 08:11:55,430 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-07 08:11:55,431 INFO L791 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 151#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 146#L18 assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 147#L23-2 assume !!(main_~i~0 < ~N~0);call write~int(main_~k~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~k~0, 4);main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 152#L23-2 assume !(main_~i~0 < ~N~0); 153#L23-3 main_~i~0 := 0; 154#L29-2 [2021-11-07 08:11:55,431 INFO L793 eck$LassoCheckResult]: Loop: 154#L29-2 assume !!(main_~i~0 < ~N~0);call main_#t~mem4 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem4 == main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 148#L13 assume !(0 == __VERIFIER_assert_~cond); 149#L13-3 havoc main_#t~mem4;main_~i~0 := 1 + main_~i~0; 154#L29-2 [2021-11-07 08:11:55,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:55,431 INFO L85 PathProgramCache]: Analyzing trace with hash 889513522, now seen corresponding path program 1 times [2021-11-07 08:11:55,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:55,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569479336] [2021-11-07 08:11:55,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:55,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:55,445 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:55,481 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:55,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:55,481 INFO L85 PathProgramCache]: Analyzing trace with hash 56828, now seen corresponding path program 2 times [2021-11-07 08:11:55,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:55,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577496610] [2021-11-07 08:11:55,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:55,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:55,488 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:55,493 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:55,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:55,494 INFO L85 PathProgramCache]: Analyzing trace with hash -450855381, now seen corresponding path program 1 times [2021-11-07 08:11:55,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:55,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970303277] [2021-11-07 08:11:55,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:55,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:55,508 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:11:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:11:55,529 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:11:55,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:56,049 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:11:56,049 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:11:56,049 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:11:56,049 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:11:56,049 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:11:56,049 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:56,049 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:11:56,050 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:11:56,050 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration3_Lasso [2021-11-07 08:11:56,050 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:11:56,050 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:11:56,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:56,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:56,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:56,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:56,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:56,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:56,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:56,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:11:56,488 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:11:56,488 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:11:56,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:56,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:56,495 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:56,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:56,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:56,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:56,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:56,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:56,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:56,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:56,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:56,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-07 08:11:56,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:56,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:56,558 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:56,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:56,559 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:56,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:56,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:56,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:11:56,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:56,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:56,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:56,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:11:56,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:11:56,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-07 08:11:56,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:56,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:56,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:56,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:56,626 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:56,632 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:56,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:56,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:56,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:56,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:56,643 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:11:56,643 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:11:56,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-07 08:11:56,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:11:56,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:56,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:56,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:56,697 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:56,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:11:56,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:11:56,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:11:56,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:11:56,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:11:56,720 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:11:56,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:11:56,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-07 08:11:56,742 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:11:56,772 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-11-07 08:11:56,772 INFO L444 ModelExtractionUtils]: 9 out of 28 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-11-07 08:11:56,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:11:56,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:11:56,773 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:11:56,783 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:11:56,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-07 08:11:56,807 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-07 08:11:56,807 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:11:56,807 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#a~0.offset, v_rep(select #length ULTIMATE.start_main_~#a~0.base)_2, ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~#a~0.offset + 2*v_rep(select #length ULTIMATE.start_main_~#a~0.base)_2 - 4*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-11-07 08:11:56,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:56,866 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-11-07 08:11:56,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:56,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:11:56,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:56,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 08:11:56,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:11:56,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:11:56,975 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-07 08:11:56,975 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3 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) [2021-11-07 08:11:56,987 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3. 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 12 states and 14 transitions. Complement of second has 4 states. [2021-11-07 08:11:56,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-07 08:11:56,987 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) [2021-11-07 08:11:56,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-11-07 08:11:56,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2021-11-07 08:11:56,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:56,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2021-11-07 08:11:56,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:56,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 6 letters. [2021-11-07 08:11:56,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:11:56,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2021-11-07 08:11:56,993 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:11:56,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2021-11-07 08:11:56,995 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-07 08:11:56,995 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-07 08:11:56,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-07 08:11:56,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:11:56,997 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:11:56,997 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:11:56,997 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:11:56,998 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-07 08:11:56,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:11:57,003 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:11:57,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-07 08:11:57,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 08:11:57 BoogieIcfgContainer [2021-11-07 08:11:57,012 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 08:11:57,012 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:11:57,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:11:57,013 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:11:57,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:11:52" (3/4) ... [2021-11-07 08:11:57,016 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 08:11:57,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:11:57,018 INFO L168 Benchmark]: Toolchain (without parser) took 5252.76 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 50.1 MB in the beginning and 58.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:11:57,019 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 92.3 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:11:57,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.90 ms. Allocated memory is still 92.3 MB. Free memory was 50.0 MB in the beginning and 68.4 MB in the end (delta: -18.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 08:11:57,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.73 ms. Allocated memory is still 92.3 MB. Free memory was 68.4 MB in the beginning and 67.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:11:57,026 INFO L168 Benchmark]: Boogie Preprocessor took 22.20 ms. Allocated memory is still 92.3 MB. Free memory was 67.0 MB in the beginning and 65.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:11:57,027 INFO L168 Benchmark]: RCFGBuilder took 292.81 ms. Allocated memory is still 92.3 MB. Free memory was 65.8 MB in the beginning and 56.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:11:57,027 INFO L168 Benchmark]: BuchiAutomizer took 4620.55 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 56.2 MB in the beginning and 58.0 MB in the end (delta: -1.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-07 08:11:57,027 INFO L168 Benchmark]: Witness Printer took 4.08 ms. Allocated memory is still 111.1 MB. Free memory is still 58.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:11:57,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 92.3 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 274.90 ms. Allocated memory is still 92.3 MB. Free memory was 50.0 MB in the beginning and 68.4 MB in the end (delta: -18.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.73 ms. Allocated memory is still 92.3 MB. Free memory was 68.4 MB in the beginning and 67.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.20 ms. Allocated memory is still 92.3 MB. Free memory was 67.0 MB in the beginning and 65.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 292.81 ms. Allocated memory is still 92.3 MB. Free memory was 65.8 MB in the beginning and 56.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4620.55 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 56.2 MB in the beginning and 58.0 MB in the end (delta: -1.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.08 ms. Allocated memory is still 111.1 MB. Free memory is still 58.0 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[a] + -4 * k and consists of 4 locations. One deterministic module has affine ranking function -1 * a + -4 * i + 2 * unknown-#length-unknown[a] and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 28 SDtfs, 19 SDslu, 8 SDs, 0 SdLazy, 17 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital176 mio100 ax100 hnf99 lsp93 ukn62 mio100 lsp59 div100 bol100 ite100 ukn100 eq171 hnf93 smp100 dnf100 smp100 tf100 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 40ms VariablesStem: 1 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-07 08:11:57,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-07 08:11:57,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a40553d-a4e5-417b-aba9-3cb33c87afb6/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE