./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/fragtest_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/fragtest_simple.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD --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 be3b53cc5f9badbf5402cafcfa5766831674eb009261bc7c1bcbe9580aece38e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:17:12,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:17:12,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:17:12,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:17:12,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:17:12,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:17:12,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:17:12,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:17:12,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:17:12,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:17:12,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:17:12,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:17:12,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:17:12,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:17:12,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:17:12,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:17:12,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:17:12,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:17:12,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:17:12,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:17:12,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:17:12,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:17:12,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:17:12,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:17:12,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:17:12,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:17:12,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:17:12,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:17:12,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:17:12,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:17:12,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:17:12,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:17:12,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:17:12,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:17:12,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:17:12,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:17:12,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:17:12,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:17:12,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:17:12,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:17:12,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:17:12,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:17:12,530 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:17:12,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:17:12,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:17:12,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:17:12,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:17:12,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:17:12,532 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:17:12,532 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:17:12,533 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:17:12,533 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:17:12,533 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:17:12,533 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:17:12,533 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:17:12,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:17:12,534 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:17:12,534 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:17:12,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:17:12,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:17:12,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:17:12,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:17:12,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:17:12,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:17:12,535 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:17:12,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:17:12,536 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:17:12,536 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:17:12,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:17:12,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:17:12,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:17:12,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:17:12,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:17:12,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:17:12,538 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:17:12,539 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_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be3b53cc5f9badbf5402cafcfa5766831674eb009261bc7c1bcbe9580aece38e [2021-10-28 23:17:12,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:17:12,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:17:12,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:17:12,848 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:17:12,850 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:17:12,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/loop-invgen/fragtest_simple.i [2021-10-28 23:17:12,934 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/data/910e5eca9/6432c0711e5948b2b222a16ad1e63847/FLAG3e4ca5081 [2021-10-28 23:17:13,405 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:17:13,405 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/sv-benchmarks/c/loop-invgen/fragtest_simple.i [2021-10-28 23:17:13,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/data/910e5eca9/6432c0711e5948b2b222a16ad1e63847/FLAG3e4ca5081 [2021-10-28 23:17:13,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/data/910e5eca9/6432c0711e5948b2b222a16ad1e63847 [2021-10-28 23:17:13,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:17:13,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:17:13,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:17:13,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:17:13,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:17:13,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:17:13" (1/1) ... [2021-10-28 23:17:13,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b0c274b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:13, skipping insertion in model container [2021-10-28 23:17:13,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:17:13" (1/1) ... [2021-10-28 23:17:13,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:17:13,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:17:14,015 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_6121e722-1e6b-49b9-b453-05f19214a506/sv-benchmarks/c/loop-invgen/fragtest_simple.i[893,906] [2021-10-28 23:17:14,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:17:14,033 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:17:14,047 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_6121e722-1e6b-49b9-b453-05f19214a506/sv-benchmarks/c/loop-invgen/fragtest_simple.i[893,906] [2021-10-28 23:17:14,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:17:14,072 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:17:14,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14 WrapperNode [2021-10-28 23:17:14,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:17:14,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:17:14,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:17:14,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:17:14,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:14,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:14,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:17:14,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:17:14,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:17:14,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:17:14,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:14,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:14,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:14,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:14,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:14,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:14,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:14,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:17:14,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:17:14,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:17:14,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:17:14,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (1/1) ... [2021-10-28 23:17:14,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:14,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:14,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:14,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:17:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:17:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:17:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:17:14,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:17:14,418 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:17:14,419 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-28 23:17:14,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:17:14 BoogieIcfgContainer [2021-10-28 23:17:14,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:17:14,422 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:17:14,422 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:17:14,426 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:17:14,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:17:14,427 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:17:13" (1/3) ... [2021-10-28 23:17:14,428 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bd5420b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:17:14, skipping insertion in model container [2021-10-28 23:17:14,428 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:17:14,429 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:17:14" (2/3) ... [2021-10-28 23:17:14,429 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bd5420b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:17:14, skipping insertion in model container [2021-10-28 23:17:14,429 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:17:14,430 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:17:14" (3/3) ... [2021-10-28 23:17:14,431 INFO L389 chiAutomizerObserver]: Analyzing ICFG fragtest_simple.i [2021-10-28 23:17:14,482 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:17:14,483 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:17:14,483 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:17:14,483 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:17:14,483 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:17:14,483 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:17:14,484 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:17:14,484 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:17:14,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.6) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:17:14,520 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2021-10-28 23:17:14,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:17:14,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:17:14,528 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:17:14,534 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:17:14,534 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:17:14,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.6) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:17:14,538 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2021-10-28 23:17:14,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:17:14,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:17:14,539 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:17:14,539 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:17:14,546 INFO L791 eck$LassoCheckResult]: Stem: 5#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(9); 7#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet3;havoc main_#t~nondet3; 16#L31-2true [2021-10-28 23:17:14,547 INFO L793 eck$LassoCheckResult]: Loop: 16#L31-2true assume !!(0 != main_#t~nondet4 && main_~i~0 <= 1000000);havoc main_#t~nondet4;main_~i~0 := 1 + main_~i~0; 16#L31-2true [2021-10-28 23:17:14,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:14,564 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 23:17:14,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:17:14,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467056181] [2021-10-28 23:17:14,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:17:14,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:17:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:14,729 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:17:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:14,767 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:17:14,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:14,771 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-10-28 23:17:14,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:17:14,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420900731] [2021-10-28 23:17:14,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:17:14,772 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:17:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:14,779 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:17:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:14,786 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:17:14,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:14,788 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-10-28 23:17:14,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:17:14,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331656568] [2021-10-28 23:17:14,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:17:14,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:17:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:14,825 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:17:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:14,855 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:17:14,975 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:17:14,975 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:17:14,976 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:17:14,976 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:17:14,976 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:17:14,976 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:14,976 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:17:14,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:17:14,977 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration1_Loop [2021-10-28 23:17:14,977 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:17:14,977 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:17:14,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:15,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:15,075 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:17:15,075 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:17:15,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:15,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:15,084 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:15,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:17:15,092 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:17:15,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:17:15,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:17:15,166 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:15,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:15,168 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:15,174 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:17:15,174 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:17:15,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:17:15,247 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:17:15,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:17:15,255 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:17:15,255 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:17:15,256 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:17:15,256 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:17:15,256 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:17:15,256 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:15,256 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:17:15,256 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:17:15,257 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration1_Loop [2021-10-28 23:17:15,257 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:17:15,257 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:17:15,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:15,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:15,306 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:17:15,311 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:17:15,315 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:15,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:15,317 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:15,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:17:15,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:17:15,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:17:15,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:17:15,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:17:15,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:17:15,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:17:15,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:17:15,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:17:15,354 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:17:15,362 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:17:15,362 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:17:15,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:15,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:15,365 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:15,370 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:17:15,371 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:17:15,371 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:17:15,372 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 2000001 Supporting invariants [] [2021-10-28 23:17:15,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:17:15,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:17:15,411 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:17:15,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:17:15,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:17:15,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:17:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:17:15,498 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:17:15,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:17:15,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:17:15,515 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 [2021-10-28 23:17:15,517 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.6) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:17:15,574 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.6) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 32 states and 50 transitions. Complement of second has 6 states. [2021-10-28 23:17:15,575 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 [2021-10-28 23:17:15,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:17:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2021-10-28 23:17:15,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-28 23:17:15,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:17:15,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-28 23:17:15,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:17:15,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 23:17:15,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:17:15,581 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 50 transitions. [2021-10-28 23:17:15,590 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 23:17:15,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 13 states and 19 transitions. [2021-10-28 23:17:15,595 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-28 23:17:15,596 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-28 23:17:15,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2021-10-28 23:17:15,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:17:15,597 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-10-28 23:17:15,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2021-10-28 23:17:15,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-28 23:17:15,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:17:15,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2021-10-28 23:17:15,626 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-10-28 23:17:15,626 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-10-28 23:17:15,626 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:17:15,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2021-10-28 23:17:15,629 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 23:17:15,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:17:15,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:17:15,631 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:17:15,631 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:17:15,631 INFO L791 eck$LassoCheckResult]: Stem: 84#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(9); 85#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet3;havoc main_#t~nondet3; 91#L31-2 assume !(0 != main_#t~nondet4 && main_~i~0 <= 1000000);havoc main_#t~nondet4; 92#L31-3 assume !(main_~i~0 > main_~pvlen~0); 89#L34-1 main_~i~0 := 0; 90#L38-2 [2021-10-28 23:17:15,632 INFO L793 eck$LassoCheckResult]: Loop: 90#L38-2 assume !!(0 != main_#t~nondet5 && main_~i~0 <= 1000000);havoc main_#t~nondet5;main_~tmp___1~0 := main_~i~0;main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 90#L38-2 [2021-10-28 23:17:15,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:15,632 INFO L85 PathProgramCache]: Analyzing trace with hash 28697992, now seen corresponding path program 1 times [2021-10-28 23:17:15,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:17:15,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950923568] [2021-10-28 23:17:15,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:17:15,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:17:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:15,671 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:17:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:15,699 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:17:15,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:15,700 INFO L85 PathProgramCache]: Analyzing trace with hash 61, now seen corresponding path program 1 times [2021-10-28 23:17:15,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:17:15,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547684759] [2021-10-28 23:17:15,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:17:15,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:17:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:15,709 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:17:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:15,714 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:17:15,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:15,722 INFO L85 PathProgramCache]: Analyzing trace with hash 889637782, now seen corresponding path program 1 times [2021-10-28 23:17:15,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:17:15,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804987692] [2021-10-28 23:17:15,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:17:15,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:17:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:15,751 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:17:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:15,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:17:15,852 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:17:15,852 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:17:15,853 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:17:15,853 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:17:15,853 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:17:15,853 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:15,853 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:17:15,853 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:17:15,854 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration2_Loop [2021-10-28 23:17:15,854 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:17:15,854 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:17:15,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:17:15,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:15,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:15,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:15,942 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:17:15,942 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:17:15,942 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:15,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:15,953 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:15,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:17:15,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:17:15,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:17:15,998 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:17:15,998 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=4} Honda state: {ULTIMATE.start_main_#t~nondet5=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:17:16,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:17:16,024 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:16,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:16,025 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:16,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:17:16,036 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:17:16,037 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:17:16,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:17:16,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:16,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:16,078 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:16,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:17:16,083 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:17:16,083 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:17:16,147 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:17:16,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-28 23:17:16,153 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:17:16,153 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:17:16,153 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:17:16,153 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:17:16,153 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:17:16,153 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:16,153 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:17:16,153 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:17:16,154 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration2_Loop [2021-10-28 23:17:16,154 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:17:16,154 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:17:16,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:16,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:16,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:16,226 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:17:16,226 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:17:16,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:16,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:16,231 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:16,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:17:16,239 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:17:16,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:17:16,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:17:16,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:17:16,249 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:17:16,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:17:16,251 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:17:16,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:17:16,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:17:16,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:17:16,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:16,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:16,292 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:16,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:17:16,298 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:17:16,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:17:16,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:17:16,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:17:16,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:17:16,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:17:16,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:17:16,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:17:16,338 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:17:16,341 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:17:16,342 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:17:16,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:16,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:16,347 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:16,352 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:17:16,353 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:17:16,353 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:17:16,353 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 2000001 Supporting invariants [] [2021-10-28 23:17:16,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:17:16,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:17:16,390 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:17:16,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:17:16,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:17:16,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:17:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:17:16,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:17:16,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:17:16,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:17:16,444 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 [2021-10-28 23:17:16,445 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 9 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:17:16,460 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 9. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 40 transitions. Complement of second has 6 states. [2021-10-28 23:17:16,461 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 [2021-10-28 23:17:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:17:16,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2021-10-28 23:17:16,462 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 5 letters. Loop has 1 letters. [2021-10-28 23:17:16,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:17:16,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-28 23:17:16,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:17:16,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 23:17:16,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:17:16,464 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 40 transitions. [2021-10-28 23:17:16,466 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 23:17:16,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 17 states and 23 transitions. [2021-10-28 23:17:16,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 23:17:16,468 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-10-28 23:17:16,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2021-10-28 23:17:16,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:17:16,468 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-10-28 23:17:16,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2021-10-28 23:17:16,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-10-28 23:17:16,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:17:16,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2021-10-28 23:17:16,471 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-10-28 23:17:16,471 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-10-28 23:17:16,472 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:17:16,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2021-10-28 23:17:16,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 23:17:16,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:17:16,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:17:16,474 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:17:16,474 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:17:16,474 INFO L791 eck$LassoCheckResult]: Stem: 164#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(9); 165#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet3;havoc main_#t~nondet3; 173#L31-2 assume !(0 != main_#t~nondet4 && main_~i~0 <= 1000000);havoc main_#t~nondet4; 174#L31-3 assume !(main_~i~0 > main_~pvlen~0); 169#L34-1 main_~i~0 := 0; 170#L38-2 assume !(0 != main_#t~nondet5 && main_~i~0 <= 1000000);havoc main_#t~nondet5; 167#L38-3 main_~j~0 := 0;main_~n~0 := main_~i~0; 168#L45-2 assume !false;__VERIFIER_assert_#in~cond := (if main_~k~0 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 162#L18 assume !(0 == __VERIFIER_assert_~cond); 163#L18-2 [2021-10-28 23:17:16,475 INFO L793 eck$LassoCheckResult]: Loop: 163#L18-2 main_~k~0 := main_~k~0 - 1;main_~i~0 := main_~i~0 - 1;main_~j~0 := 1 + main_~j~0; 166#L50 assume !(main_~j~0 >= main_~n~0); 171#L45-2 assume !false;__VERIFIER_assert_#in~cond := (if main_~k~0 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 172#L18 assume !(0 == __VERIFIER_assert_~cond); 163#L18-2 [2021-10-28 23:17:16,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:16,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1044045579, now seen corresponding path program 1 times [2021-10-28 23:17:16,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:17:16,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755444305] [2021-10-28 23:17:16,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:17:16,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:17:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:16,492 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:17:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:16,507 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:17:16,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:16,508 INFO L85 PathProgramCache]: Analyzing trace with hash 2559565, now seen corresponding path program 1 times [2021-10-28 23:17:16,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:17:16,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662012178] [2021-10-28 23:17:16,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:17:16,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:17:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:16,515 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:17:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:17:16,522 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:17:16,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:16,525 INFO L85 PathProgramCache]: Analyzing trace with hash 667587905, now seen corresponding path program 1 times [2021-10-28 23:17:16,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:17:16,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898907392] [2021-10-28 23:17:16,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:17:16,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:17:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:17:16,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:17:16,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:17:16,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898907392] [2021-10-28 23:17:16,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898907392] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:17:16,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:17:16,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:17:16,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732812654] [2021-10-28 23:17:16,689 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:17:16,689 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:17:16,690 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:17:16,690 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:17:16,690 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:17:16,690 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:16,690 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:17:16,690 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:17:16,691 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration3_Loop [2021-10-28 23:17:16,691 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:17:16,691 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:17:16,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:16,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:16,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:16,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:16,778 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:17:16,778 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:17:16,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:16,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:16,779 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:16,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:17:16,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:17:16,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:17:16,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:17:16,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:16,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:16,855 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:16,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:17:16,879 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:17:16,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:17:17,247 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:17:17,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:17:17,250 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:17:17,250 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:17:17,250 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:17:17,251 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:17:17,251 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:17:17,251 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:17,251 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:17:17,251 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:17:17,251 INFO L133 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration3_Loop [2021-10-28 23:17:17,251 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:17:17,251 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:17:17,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:17,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:17,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:17,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:17:17,335 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:17:17,335 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:17:17,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:17,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:17,343 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:17,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:17:17,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:17:17,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:17:17,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:17:17,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:17:17,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:17:17,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:17:17,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:17:17,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:17:17,374 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:17:17,377 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:17:17,377 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:17:17,377 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:17:17,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:17:17,382 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:17:17,388 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:17:17,388 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:17:17,388 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:17:17,388 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-10-28 23:17:17,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:17:17,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:17:17,429 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:17:17,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:17:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:17:17,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:17:17,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:17:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:17:17,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:17:17,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:17:17,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:17:17,564 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:17:17,565 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:17:17,622 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 34 transitions. Complement of second has 7 states. [2021-10-28 23:17:17,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:17:17,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:17:17,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2021-10-28 23:17:17,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 9 letters. Loop has 4 letters. [2021-10-28 23:17:17,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:17:17,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 13 letters. Loop has 4 letters. [2021-10-28 23:17:17,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:17:17,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 9 letters. Loop has 8 letters. [2021-10-28 23:17:17,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:17:17,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2021-10-28 23:17:17,627 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:17:17,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2021-10-28 23:17:17,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:17:17,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:17:17,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:17:17,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:17:17,629 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:17:17,629 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:17:17,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:17:17,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:17:17,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:17:17,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:17:17,652 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:17:17,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:17:17,655 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 23:17:17,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:17:17,655 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 23:17:17,655 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:17:17,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:17:17,656 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:17:17,656 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:17:17,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:17:17,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:17:17,656 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:17:17,656 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:17:17,656 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:17:17,656 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:17:17,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:17:17,657 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:17:17,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:17:17,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:17:17 BoogieIcfgContainer [2021-10-28 23:17:17,674 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:17:17,675 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:17:17,675 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:17:17,675 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:17:17,676 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:17:14" (3/4) ... [2021-10-28 23:17:17,679 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:17:17,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:17:17,681 INFO L168 Benchmark]: Toolchain (without parser) took 3901.51 ms. Allocated memory was 115.3 MB in the beginning and 159.4 MB in the end (delta: 44.0 MB). Free memory was 81.0 MB in the beginning and 130.2 MB in the end (delta: -49.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:17:17,682 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 89.7 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:17:17,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.06 ms. Allocated memory is still 115.3 MB. Free memory was 80.7 MB in the beginning and 91.7 MB in the end (delta: -11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:17,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.88 ms. Allocated memory is still 115.3 MB. Free memory was 91.3 MB in the beginning and 90.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:17,684 INFO L168 Benchmark]: Boogie Preprocessor took 22.76 ms. Allocated memory is still 115.3 MB. Free memory was 90.1 MB in the beginning and 88.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:17,685 INFO L168 Benchmark]: RCFGBuilder took 289.07 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 79.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:17:17,685 INFO L168 Benchmark]: BuchiAutomizer took 3252.50 ms. Allocated memory was 115.3 MB in the beginning and 159.4 MB in the end (delta: 44.0 MB). Free memory was 79.2 MB in the beginning and 130.2 MB in the end (delta: -51.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:17:17,686 INFO L168 Benchmark]: Witness Printer took 4.34 ms. Allocated memory is still 159.4 MB. Free memory is still 130.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:17:17,690 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 89.7 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.06 ms. Allocated memory is still 115.3 MB. Free memory was 80.7 MB in the beginning and 91.7 MB in the end (delta: -11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.88 ms. Allocated memory is still 115.3 MB. Free memory was 91.3 MB in the beginning and 90.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.76 ms. Allocated memory is still 115.3 MB. Free memory was 90.1 MB in the beginning and 88.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 289.07 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 79.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3252.50 ms. Allocated memory was 115.3 MB in the beginning and 159.4 MB in the end (delta: 44.0 MB). Free memory was 79.2 MB in the beginning and 130.2 MB in the end (delta: -51.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.34 ms. Allocated memory is still 159.4 MB. Free memory is still 130.2 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 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 2000001 and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 2000001 and consists of 4 locations. One deterministic module has affine ranking function n + -1 * j and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 28 SDtfs, 29 SDslu, 9 SDs, 0 SdLazy, 20 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf92 smp100 dnf100 smp100 tf112 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:17:17,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:17:17,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6121e722-1e6b-49b9-b453-05f19214a506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...