./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-new/gauss_sum.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-new/gauss_sum.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3 --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 900dc8888580ebedbb327649d929719e765fe641 ............................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:24:24,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:24:24,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:24:24,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:24:24,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:24:24,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:24:24,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:24:24,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:24:24,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:24:24,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:24:24,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:24:24,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:24:24,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:24:24,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:24:24,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:24:24,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:24:24,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:24:24,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:24:24,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:24:24,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:24:24,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:24:24,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:24:24,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:24:24,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:24:24,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:24:24,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:24:24,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:24:24,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:24:24,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:24:24,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:24:24,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:24:24,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:24:24,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:24:24,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:24:24,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:24:24,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:24:24,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:24:24,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:24:24,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:24:24,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:24:24,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:24:24,622 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 19:24:24,652 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:24:24,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:24:24,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:24:24,654 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:24:24,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:24:24,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:24:24,656 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:24:24,656 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:24:24,657 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:24:24,665 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:24:24,666 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:24:24,666 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:24:24,667 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:24:24,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:24:24,668 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:24:24,668 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:24:24,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:24:24,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:24:24,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:24:24,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:24:24,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:24:24,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:24:24,671 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:24:24,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:24:24,672 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:24:24,672 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:24:24,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:24:24,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:24:24,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:24:24,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:24:24,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:24:24,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:24:24,678 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:24:24,678 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_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 900dc8888580ebedbb327649d929719e765fe641 [2021-10-15 19:24:25,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:24:25,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:24:25,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:24:25,036 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:24:25,037 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:24:25,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/loop-new/gauss_sum.i [2021-10-15 19:24:25,150 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/data/d3cdef5d4/9d791984df41438094a4aae1d3df1448/FLAG99415c8d5 [2021-10-15 19:24:25,608 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:24:25,609 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/sv-benchmarks/c/loop-new/gauss_sum.i [2021-10-15 19:24:25,616 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/data/d3cdef5d4/9d791984df41438094a4aae1d3df1448/FLAG99415c8d5 [2021-10-15 19:24:25,992 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/data/d3cdef5d4/9d791984df41438094a4aae1d3df1448 [2021-10-15 19:24:25,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:24:25,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:24:25,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:24:25,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:24:26,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:24:26,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:24:25" (1/1) ... [2021-10-15 19:24:26,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@566ac8de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:24:26, skipping insertion in model container [2021-10-15 19:24:26,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:24:25" (1/1) ... [2021-10-15 19:24:26,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:24:26,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:24:26,256 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_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/sv-benchmarks/c/loop-new/gauss_sum.i[891,904] [2021-10-15 19:24:26,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:24:26,285 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:24:26,309 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_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/sv-benchmarks/c/loop-new/gauss_sum.i[891,904] [2021-10-15 19:24:26,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:24:26,338 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:24:26,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:24:26 WrapperNode [2021-10-15 19:24:26,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:24:26,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:24:26,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:24:26,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:24:26,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:24:26" (1/1) ... [2021-10-15 19:24:26,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:24:26" (1/1) ... [2021-10-15 19:24:26,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:24:26,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:24:26,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:24:26,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:24:26,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:24:26" (1/1) ... [2021-10-15 19:24:26,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:24:26" (1/1) ... [2021-10-15 19:24:26,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:24:26" (1/1) ... [2021-10-15 19:24:26,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:24:26" (1/1) ... [2021-10-15 19:24:26,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:24:26" (1/1) ... [2021-10-15 19:24:26,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:24:26" (1/1) ... [2021-10-15 19:24:26,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:24:26" (1/1) ... [2021-10-15 19:24:26,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:24:26,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:24:26,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:24:26,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:24:26,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:24:26" (1/1) ... [2021-10-15 19:24:26,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:24:26,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:24:26,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:24:26,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:24:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:24:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:24:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:24:26,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:24:26,719 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:24:26,720 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-15 19:24:26,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:24:26 BoogieIcfgContainer [2021-10-15 19:24:26,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:24:26,724 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:24:26,724 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:24:26,728 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:24:26,729 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:24:26,729 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:24:25" (1/3) ... [2021-10-15 19:24:26,730 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@410c2378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:24:26, skipping insertion in model container [2021-10-15 19:24:26,731 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:24:26,731 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:24:26" (2/3) ... [2021-10-15 19:24:26,732 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@410c2378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:24:26, skipping insertion in model container [2021-10-15 19:24:26,732 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:24:26,732 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:24:26" (3/3) ... [2021-10-15 19:24:26,734 INFO L389 chiAutomizerObserver]: Analyzing ICFG gauss_sum.i [2021-10-15 19:24:26,784 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:24:26,784 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:24:26,784 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:24:26,785 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:24:26,785 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:24:26,785 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:24:26,785 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:24:26,785 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:24:26,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:24:26,822 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:24:26,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:24:26,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:24:26,829 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-15 19:24:26,830 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:24:26,830 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:24:26,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:24:26,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:24:26,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:24:26,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:24:26,834 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-15 19:24:26,834 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:24:26,842 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); 11#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~n~0, main_~sum~0, main_~i~0;havoc main_~n~0;havoc main_~sum~0;havoc main_~i~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 8#L27true assume !!(1 <= main_~n~0 && main_~n~0 <= 1000);main_~sum~0 := 0;main_~i~0 := 1; 6#L29-3true [2021-10-15 19:24:26,843 INFO L793 eck$LassoCheckResult]: Loop: 6#L29-3true assume !!(main_~i~0 <= main_~n~0);main_~sum~0 := main_~sum~0 + main_~i~0; 14#L29-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 6#L29-3true [2021-10-15 19:24:26,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:24:26,850 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-15 19:24:26,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:24:26,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595586100] [2021-10-15 19:24:26,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:24:26,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:24:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:24:26,984 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:24:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:24:27,050 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:24:27,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:24:27,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2021-10-15 19:24:27,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:24:27,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696647572] [2021-10-15 19:24:27,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:24:27,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:24:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:24:27,065 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:24:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:24:27,075 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:24:27,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:24:27,078 INFO L82 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-10-15 19:24:27,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:24:27,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235580853] [2021-10-15 19:24:27,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:24:27,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:24:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:24:27,106 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:24:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:24:27,133 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:24:27,269 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:24:27,270 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:24:27,270 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:24:27,270 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:24:27,270 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 19:24:27,271 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:24:27,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:24:27,271 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:24:27,271 INFO L133 ssoRankerPreferences]: Filename of dumped script: gauss_sum.i_Iteration1_Loop [2021-10-15 19:24:27,272 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:24:27,272 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:24:27,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:24:27,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:24:27,383 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:24:27,384 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 19:24:27,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:24:27,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:24:27,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:24:27,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:24:27,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:24:27,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 19:24:27,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:24:27,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:24:27,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:24:27,475 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:24:27,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 19:24:27,481 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:24:27,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 19:24:27,660 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 19:24:27,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-15 19:24:27,667 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:24:27,667 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:24:27,667 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:24:27,667 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:24:27,667 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:24:27,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:24:27,668 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:24:27,668 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:24:27,668 INFO L133 ssoRankerPreferences]: Filename of dumped script: gauss_sum.i_Iteration1_Loop [2021-10-15 19:24:27,668 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:24:27,668 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:24:27,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:24:27,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:24:27,725 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:24:27,730 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:24:27,735 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:24:27,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:24:27,737 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:24:27,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:24:27,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:24:27,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:24:27,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:24:27,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:24:27,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:24:27,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:24:27,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:24:27,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 19:24:27,773 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:24:27,784 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-15 19:24:27,784 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-15 19:24:27,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:24:27,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:24:27,793 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:24:27,813 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:24:27,814 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-15 19:24:27,814 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:24:27,815 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 2*ULTIMATE.start_main_~n~0 - 2*ULTIMATE.start_main_~i~0 + 1 Supporting invariants [] [2021-10-15 19:24:27,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 19:24:27,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 19:24:27,845 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-15 19:24:27,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:24:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:24:27,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 19:24:27,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:24:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:24:27,909 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:24:27,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:24:27,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:24:27,951 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-15 19:24:27,952 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:24:27,997 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 37 transitions. Complement of second has 7 states. [2021-10-15 19:24:27,998 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 [2021-10-15 19:24:27,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:24:28,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2021-10-15 19:24:28,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-15 19:24:28,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:24:28,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-15 19:24:28,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:24:28,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-15 19:24:28,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:24:28,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2021-10-15 19:24:28,008 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:24:28,010 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2021-10-15 19:24:28,011 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 19:24:28,011 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 19:24:28,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 19:24:28,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:24:28,012 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:24:28,013 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:24:28,013 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:24:28,013 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:24:28,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 19:24:28,013 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:24:28,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 19:24:28,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:24:28 BoogieIcfgContainer [2021-10-15 19:24:28,019 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:24:28,020 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:24:28,020 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:24:28,020 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:24:28,021 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:24:26" (3/4) ... [2021-10-15 19:24:28,024 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:24:28,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:24:28,026 INFO L168 Benchmark]: Toolchain (without parser) took 2028.54 ms. Allocated memory is still 125.8 MB. Free memory was 86.8 MB in the beginning and 51.7 MB in the end (delta: 35.1 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2021-10-15 19:24:28,027 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 125.8 MB. Free memory is still 103.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:24:28,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.64 ms. Allocated memory is still 125.8 MB. Free memory was 86.5 MB in the beginning and 101.4 MB in the end (delta: -14.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:24:28,029 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.88 ms. Allocated memory is still 125.8 MB. Free memory was 101.4 MB in the beginning and 99.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:24:28,029 INFO L168 Benchmark]: Boogie Preprocessor took 47.29 ms. Allocated memory is still 125.8 MB. Free memory was 99.8 MB in the beginning and 98.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:24:28,030 INFO L168 Benchmark]: RCFGBuilder took 277.47 ms. Allocated memory is still 125.8 MB. Free memory was 98.6 MB in the beginning and 89.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:24:28,031 INFO L168 Benchmark]: BuchiAutomizer took 1295.91 ms. Allocated memory is still 125.8 MB. Free memory was 89.4 MB in the beginning and 51.7 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:24:28,031 INFO L168 Benchmark]: Witness Printer took 4.60 ms. Allocated memory is still 125.8 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:24:28,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 125.8 MB. Free memory is still 103.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 341.64 ms. Allocated memory is still 125.8 MB. Free memory was 86.5 MB in the beginning and 101.4 MB in the end (delta: -14.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.88 ms. Allocated memory is still 125.8 MB. Free memory was 101.4 MB in the beginning and 99.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.29 ms. Allocated memory is still 125.8 MB. Free memory was 99.8 MB in the beginning and 98.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 277.47 ms. Allocated memory is still 125.8 MB. Free memory was 98.6 MB in the beginning and 89.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1295.91 ms. Allocated memory is still 125.8 MB. Free memory was 89.4 MB in the beginning and 51.7 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.60 ms. Allocated memory is still 125.8 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * n + -2 * i + 1 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 12 SDslu, 10 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 79ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 19:24:28,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-15 19:24:28,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5313bcdc-7215-4f8d-94e7-46ab088fb4e8/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...