./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-new/half.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-new/half.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cd8ea842760c1d795b2a0ad721eea8bf94078967bffa91c75f5537bf4a53b968 ..................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:14:13,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:14:13,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:14:13,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:14:13,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:14:13,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:14:13,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:14:13,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:14:13,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:14:13,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:14:13,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:14:13,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:14:13,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:14:13,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:14:13,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:14:13,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:14:13,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:14:13,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:14:13,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:14:13,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:14:13,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:14:13,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:14:13,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:14:13,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:14:13,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:14:13,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:14:13,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:14:13,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:14:13,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:14:13,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:14:13,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:14:13,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:14:13,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:14:13,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:14:13,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:14:13,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:14:13,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:14:13,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:14:13,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:14:13,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:14:13,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:14:13,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:14:13,145 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:14:13,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:14:13,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:14:13,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:14:13,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:14:13,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:14:13,148 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:14:13,148 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:14:13,149 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:14:13,149 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:14:13,149 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:14:13,149 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:14:13,150 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:14:13,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:14:13,150 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:14:13,151 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:14:13,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:14:13,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:14:13,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:14:13,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:14:13,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:14:13,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:14:13,153 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:14:13,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:14:13,153 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:14:13,153 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:14:13,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:14:13,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:14:13,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:14:13,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:14:13,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:14:13,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:14:13,156 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:14:13,156 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_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd8ea842760c1d795b2a0ad721eea8bf94078967bffa91c75f5537bf4a53b968 [2021-10-21 19:14:13,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:14:13,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:14:13,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:14:13,446 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:14:13,447 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:14:13,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/loop-new/half.i [2021-10-21 19:14:13,536 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/data/a318502f5/2deea823950b459e9f69ed02478f0f54/FLAG99f474bc3 [2021-10-21 19:14:13,946 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:14:13,946 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/sv-benchmarks/c/loop-new/half.i [2021-10-21 19:14:13,954 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/data/a318502f5/2deea823950b459e9f69ed02478f0f54/FLAG99f474bc3 [2021-10-21 19:14:14,362 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/data/a318502f5/2deea823950b459e9f69ed02478f0f54 [2021-10-21 19:14:14,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:14:14,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:14:14,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:14:14,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:14:14,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:14:14,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:14:14" (1/1) ... [2021-10-21 19:14:14,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@451fa501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:14, skipping insertion in model container [2021-10-21 19:14:14,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:14:14" (1/1) ... [2021-10-21 19:14:14,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:14:14,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:14:14,570 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_ae688655-7a19-494c-9bde-da10754adc60/sv-benchmarks/c/loop-new/half.i[891,904] [2021-10-21 19:14:14,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:14:14,587 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:14:14,599 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_ae688655-7a19-494c-9bde-da10754adc60/sv-benchmarks/c/loop-new/half.i[891,904] [2021-10-21 19:14:14,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:14:14,616 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:14:14,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:14 WrapperNode [2021-10-21 19:14:14,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:14:14,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:14:14,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:14:14,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:14:14,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:14" (1/1) ... [2021-10-21 19:14:14,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:14" (1/1) ... [2021-10-21 19:14:14,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:14:14,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:14:14,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:14:14,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:14:14,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:14" (1/1) ... [2021-10-21 19:14:14,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:14" (1/1) ... [2021-10-21 19:14:14,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:14" (1/1) ... [2021-10-21 19:14:14,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:14" (1/1) ... [2021-10-21 19:14:14,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:14" (1/1) ... [2021-10-21 19:14:14,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:14" (1/1) ... [2021-10-21 19:14:14,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:14" (1/1) ... [2021-10-21 19:14:14,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:14:14,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:14:14,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:14:14,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:14:14,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:14" (1/1) ... [2021-10-21 19:14:14,680 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:14,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:14,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:14,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:14:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:14:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:14:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:14:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:14:14,948 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:14:14,948 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:14:14,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:14:14 BoogieIcfgContainer [2021-10-21 19:14:14,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:14:14,951 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:14:14,951 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:14:14,967 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:14:14,968 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:14:14,968 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:14:14" (1/3) ... [2021-10-21 19:14:14,972 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60debb6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:14:14, skipping insertion in model container [2021-10-21 19:14:14,972 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:14:14,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:14" (2/3) ... [2021-10-21 19:14:14,973 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60debb6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:14:14, skipping insertion in model container [2021-10-21 19:14:14,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:14:14,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:14:14" (3/3) ... [2021-10-21 19:14:14,975 INFO L389 chiAutomizerObserver]: Analyzing ICFG half.i [2021-10-21 19:14:15,031 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:14:15,031 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:14:15,031 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:14:15,032 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:14:15,032 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:14:15,032 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:14:15,032 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:14:15,032 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:14:15,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:14:15,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:14:15,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:14:15,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:14:15,087 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:14:15,087 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:14:15,088 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:14:15,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:14:15,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:14:15,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:14:15,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:14:15,094 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:14:15,101 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:14:15,108 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 7#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post5, main_#t~post4, main_~i~0, main_~n~0, main_~k~0;main_~i~0 := 0;main_~n~0 := 0;main_~k~0 := main_#t~nondet3;havoc main_#t~nondet3; 11#L28true assume !!(main_~k~0 <= 1000000 && main_~k~0 >= -1000000);main_~i~0 := 0; 9#L29-3true [2021-10-21 19:14:15,108 INFO L793 eck$LassoCheckResult]: Loop: 9#L29-3true assume !!(main_~i~0 < 2 * main_~k~0); 5#L30true assume 0 == (if main_~i~0 < 0 && 0 != main_~i~0 % 2 then main_~i~0 % 2 - 2 else main_~i~0 % 2);main_#t~post5 := main_~n~0;main_~n~0 := 1 + main_#t~post5;havoc main_#t~post5; 15#L29-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 9#L29-3true [2021-10-21 19:14:15,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:15,114 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-21 19:14:15,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:15,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41259199] [2021-10-21 19:14:15,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:15,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:15,218 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:15,253 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:15,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:15,257 INFO L82 PathProgramCache]: Analyzing trace with hash 44786, now seen corresponding path program 1 times [2021-10-21 19:14:15,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:15,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434173916] [2021-10-21 19:14:15,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:15,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:15,277 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:15,292 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:15,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:15,295 INFO L82 PathProgramCache]: Analyzing trace with hash 889574255, now seen corresponding path program 1 times [2021-10-21 19:14:15,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:15,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552057787] [2021-10-21 19:14:15,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:15,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:15,321 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:15,348 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:15,428 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:14:15,429 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:14:15,429 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:14:15,430 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:14:15,430 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:14:15,430 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:15,430 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:14:15,430 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:14:15,431 INFO L133 ssoRankerPreferences]: Filename of dumped script: half.i_Iteration1_Loop [2021-10-21 19:14:15,431 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:14:15,431 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:14:15,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:15,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:15,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:15,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:15,565 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:14:15,566 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:14:15,568 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:15,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:15,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:15,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:14:15,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:14:15,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:14:15,627 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:14:15,627 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:14:15,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:15,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:15,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:15,654 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:15,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:14:15,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:14:15,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:14:15,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:15,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:15,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:15,698 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:15,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:14:15,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:14:15,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:14:15,749 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:14:15,749 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=0} Honda state: {ULTIMATE.start_main_~n~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~n~0=-1}, {ULTIMATE.start_main_~n~0=-1}, {ULTIMATE.start_main_~n~0=3}] Lambdas: [1, 4, 1] Nus: [0, 1] [2021-10-21 19:14:15,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:15,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:15,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:15,781 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:15,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:14:15,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:14:15,785 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:14:15,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-21 19:14:15,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:15,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:15,830 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:15,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:14:15,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:14:15,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:14:15,985 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:14:15,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:15,990 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:14:15,991 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:14:15,991 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:14:15,991 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:14:15,991 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:14:15,991 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:15,991 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:14:15,991 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:14:15,991 INFO L133 ssoRankerPreferences]: Filename of dumped script: half.i_Iteration1_Loop [2021-10-21 19:14:15,991 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:14:15,992 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:14:15,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:15,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:16,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:16,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:16,105 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:14:16,109 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:14:16,110 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:16,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:16,111 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:16,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:14:16,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:16,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:16,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:16,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:16,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:16,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:16,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:16,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:16,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:16,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-21 19:14:16,146 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:16,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:16,147 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:16,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:14:16,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:16,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:16,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:16,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:16,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:16,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:16,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:16,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:16,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:16,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:16,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:16,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:16,190 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:16,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:14:16,194 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:16,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:16,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:16,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:16,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:16,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:16,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:16,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:16,211 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:14:16,241 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:14:16,242 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:14:16,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:16,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:16,245 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:16,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:14:16,273 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:14:16,273 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:14:16,273 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:14:16,274 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~i~0) = 2*ULTIMATE.start_main_~k~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-21 19:14:16,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:16,306 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:14:16,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:16,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:14:16,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:14:16,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:14:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:14:16,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:14:16,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:14:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:14:16,504 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:14:16,505 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-21 19:14:16,565 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 33 states and 41 transitions. Complement of second has 7 states. [2021-10-21 19:14:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:14:16,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-21 19:14:16,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2021-10-21 19:14:16,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-21 19:14:16,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:14:16,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-21 19:14:16,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:14:16,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-21 19:14:16,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:14:16,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 41 transitions. [2021-10-21 19:14:16,574 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:14:16,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2021-10-21 19:14:16,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:14:16,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:14:16,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:14:16,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:14:16,579 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:14:16,579 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:14:16,579 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:14:16,579 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:14:16,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:14:16,579 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:14:16,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:14:16,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:14:16 BoogieIcfgContainer [2021-10-21 19:14:16,585 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:14:16,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:14:16,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:14:16,586 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:14:16,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:14:14" (3/4) ... [2021-10-21 19:14:16,589 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:14:16,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:14:16,591 INFO L168 Benchmark]: Toolchain (without parser) took 2224.82 ms. Allocated memory is still 111.1 MB. Free memory was 77.9 MB in the beginning and 78.8 MB in the end (delta: -892.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:14:16,592 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 75.5 MB. Free memory was 49.8 MB in the beginning and 49.8 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:14:16,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.37 ms. Allocated memory is still 111.1 MB. Free memory was 77.7 MB in the beginning and 88.4 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:16,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.31 ms. Allocated memory is still 111.1 MB. Free memory was 88.4 MB in the beginning and 86.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:16,594 INFO L168 Benchmark]: Boogie Preprocessor took 19.44 ms. Allocated memory is still 111.1 MB. Free memory was 86.7 MB in the beginning and 85.8 MB in the end (delta: 896.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:16,594 INFO L168 Benchmark]: RCFGBuilder took 279.14 ms. Allocated memory is still 111.1 MB. Free memory was 85.8 MB in the beginning and 76.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:16,595 INFO L168 Benchmark]: BuchiAutomizer took 1634.17 ms. Allocated memory is still 111.1 MB. Free memory was 76.8 MB in the beginning and 78.8 MB in the end (delta: -2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:14:16,595 INFO L168 Benchmark]: Witness Printer took 3.94 ms. Allocated memory is still 111.1 MB. Free memory is still 78.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:14:16,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 75.5 MB. Free memory was 49.8 MB in the beginning and 49.8 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.37 ms. Allocated memory is still 111.1 MB. Free memory was 77.7 MB in the beginning and 88.4 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.31 ms. Allocated memory is still 111.1 MB. Free memory was 88.4 MB in the beginning and 86.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.44 ms. Allocated memory is still 111.1 MB. Free memory was 86.7 MB in the beginning and 85.8 MB in the end (delta: 896.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 279.14 ms. Allocated memory is still 111.1 MB. Free memory was 85.8 MB in the beginning and 76.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1634.17 ms. Allocated memory is still 111.1 MB. Free memory was 76.8 MB in the beginning and 78.8 MB in the end (delta: -2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.94 ms. Allocated memory is still 111.1 MB. Free memory is still 78.8 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 * k + -1 * i and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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, 17 SDslu, 10 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.1ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp77 ukn100 mio100 lsp100 div317 bol100 ite100 ukn100 eq148 hnf50 smp92 dnf100 smp100 tf105 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:14:16,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae688655-7a19-494c-9bde-da10754adc60/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...