./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/sum01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/sum01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt --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 7e441b408705ca8366624dd497de58641bec51a6 ............................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:33:33,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:33:33,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:33:33,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:33:33,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:33:33,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:33:34,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:33:34,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:33:34,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:33:34,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:33:34,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:33:34,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:33:34,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:33:34,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:33:34,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:33:34,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:33:34,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:33:34,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:33:34,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:33:34,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:33:34,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:33:34,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:33:34,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:33:34,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:33:34,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:33:34,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:33:34,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:33:34,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:33:34,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:33:34,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:33:34,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:33:34,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:33:34,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:33:34,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:33:34,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:33:34,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:33:34,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:33:34,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:33:34,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:33:34,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:33:34,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:33:34,101 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:33:34,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:33:34,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:33:34,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:33:34,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:33:34,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:33:34,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:33:34,147 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:33:34,147 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:33:34,147 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:33:34,148 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:33:34,149 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:33:34,149 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:33:34,149 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:33:34,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:33:34,150 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:33:34,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:33:34,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:33:34,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:33:34,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:33:34,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:33:34,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:33:34,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:33:34,152 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:33:34,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:33:34,152 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:33:34,153 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:33:34,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:33:34,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:33:34,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:33:34,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:33:34,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:33:34,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:33:34,157 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:33:34,157 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_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e441b408705ca8366624dd497de58641bec51a6 [2021-10-13 00:33:34,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:33:34,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:33:34,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:33:34,434 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:33:34,435 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:33:34,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/loops/sum01-2.i [2021-10-13 00:33:34,507 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/data/0dc3934c9/2ac92746cf21471e9a20b50a09ac1bf2/FLAG9cd3514b4 [2021-10-13 00:33:34,982 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:33:34,982 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/sv-benchmarks/c/loops/sum01-2.i [2021-10-13 00:33:34,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/data/0dc3934c9/2ac92746cf21471e9a20b50a09ac1bf2/FLAG9cd3514b4 [2021-10-13 00:33:35,399 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/data/0dc3934c9/2ac92746cf21471e9a20b50a09ac1bf2 [2021-10-13 00:33:35,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:33:35,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:33:35,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:33:35,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:33:35,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:33:35,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:33:35" (1/1) ... [2021-10-13 00:33:35,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@afc3114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:35, skipping insertion in model container [2021-10-13 00:33:35,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:33:35" (1/1) ... [2021-10-13 00:33:35,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:33:35,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:33:35,558 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_dca912e9-5681-491a-956a-0fb24e5aec41/sv-benchmarks/c/loops/sum01-2.i[849,862] [2021-10-13 00:33:35,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:33:35,574 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:33:35,586 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_dca912e9-5681-491a-956a-0fb24e5aec41/sv-benchmarks/c/loops/sum01-2.i[849,862] [2021-10-13 00:33:35,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:33:35,602 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:33:35,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:35 WrapperNode [2021-10-13 00:33:35,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:33:35,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:33:35,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:33:35,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:33:35,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:35" (1/1) ... [2021-10-13 00:33:35,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:35" (1/1) ... [2021-10-13 00:33:35,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:33:35,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:33:35,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:33:35,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:33:35,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:35" (1/1) ... [2021-10-13 00:33:35,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:35" (1/1) ... [2021-10-13 00:33:35,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:35" (1/1) ... [2021-10-13 00:33:35,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:35" (1/1) ... [2021-10-13 00:33:35,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:35" (1/1) ... [2021-10-13 00:33:35,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:35" (1/1) ... [2021-10-13 00:33:35,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:35" (1/1) ... [2021-10-13 00:33:35,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:33:35,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:33:35,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:33:35,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:33:35,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:35" (1/1) ... [2021-10-13 00:33:35,672 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:33:35,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:33:35,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:33:35,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:33:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:33:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:33:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:33:35,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:33:35,897 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:33:35,898 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 00:33:35,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:33:35 BoogieIcfgContainer [2021-10-13 00:33:35,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:33:35,902 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:33:35,902 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:33:35,905 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:33:35,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:33:35,906 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:33:35" (1/3) ... [2021-10-13 00:33:35,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a07af25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:33:35, skipping insertion in model container [2021-10-13 00:33:35,908 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:33:35,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:35" (2/3) ... [2021-10-13 00:33:35,909 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a07af25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:33:35, skipping insertion in model container [2021-10-13 00:33:35,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:33:35,909 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:33:35" (3/3) ... [2021-10-13 00:33:35,910 INFO L389 chiAutomizerObserver]: Analyzing ICFG sum01-2.i [2021-10-13 00:33:35,959 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:33:35,959 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:33:35,959 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:33:35,959 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:33:35,959 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:33:35,959 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:33:35,960 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:33:35,960 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:33:35,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:33:35,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:33:35,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:33:35,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:33:35,999 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-13 00:33:35,999 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:33:35,999 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:33:35,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:33:36,001 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:33:36,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:33:36,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:33:36,001 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-13 00:33:36,001 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:33:36,009 INFO L791 eck$LassoCheckResult]: Stem: 7#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(10); 11#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~sn~0 := 0; 12#L24true assume !!(main_~n~0 < 1000 && main_~n~0 >= -1000);main_~i~0 := 1; 8#L25-3true [2021-10-13 00:33:36,009 INFO L793 eck$LassoCheckResult]: Loop: 8#L25-3true assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 5#L25-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 8#L25-3true [2021-10-13 00:33:36,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:36,039 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-13 00:33:36,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:33:36,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534246563] [2021-10-13 00:33:36,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:36,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:33:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:33:36,156 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:33:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:33:36,190 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:33:36,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:36,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2021-10-13 00:33:36,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:33:36,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388356337] [2021-10-13 00:33:36,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:36,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:33:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:33:36,201 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:33:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:33:36,207 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:33:36,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:36,209 INFO L82 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-10-13 00:33:36,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:33:36,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000153687] [2021-10-13 00:33:36,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:36,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:33:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:33:36,227 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:33:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:33:36,246 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:33:36,321 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:33:36,321 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:33:36,322 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:33:36,322 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:33:36,322 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:33:36,322 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:33:36,322 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:33:36,322 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:33:36,323 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-2.i_Iteration1_Loop [2021-10-13 00:33:36,323 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:33:36,323 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:33:36,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:33:36,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:33:36,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:33:36,459 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:33:36,460 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:33:36,463 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:33:36,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:33:36,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:33:36,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:33:36,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:33:36,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:33:36,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:36,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:33:36,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:33:36,524 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:33:36,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:33:36,538 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:33:36,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:33:36,567 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:33:36,567 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=0} Honda state: {ULTIMATE.start_main_~sn~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0=-1}, {ULTIMATE.start_main_~sn~0=3}, {ULTIMATE.start_main_~sn~0=0}] Lambdas: [4, 1, 0] Nus: [1, 1] [2021-10-13 00:33:36,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-13 00:33:36,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:33:36,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:33:36,593 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:33:36,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:33:36,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:33:36,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:33:36,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:36,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:33:36,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:33:36,666 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:33:36,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:33:36,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:33:36,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:33:36,834 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:33:36,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:36,837 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:33:36,838 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:33:36,838 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:33:36,838 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:33:36,838 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:33:36,838 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:33:36,838 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:33:36,838 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:33:36,839 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-2.i_Iteration1_Loop [2021-10-13 00:33:36,839 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:33:36,839 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:33:36,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:33:36,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:33:36,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:33:36,900 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:33:36,905 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:33:36,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:33:36,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:33:36,908 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:33:36,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:33:36,912 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 [2021-10-13 00:33:36,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:33:36,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:33:36,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:33:36,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:33:36,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:33:36,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:33:36,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:33:36,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:33:36,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:36,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:33:36,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:33:36,983 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:33:36,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:33:36,988 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 [2021-10-13 00:33:36,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:33:36,996 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:33:36,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:33:36,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:33:36,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:33:36,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:33:36,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:33:37,012 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:33:37,016 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:33:37,016 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:33:37,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:33:37,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:33:37,046 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:33:37,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:33:37,051 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:33:37,051 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:33:37,051 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:33:37,052 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 [] [2021-10-13 00:33:37,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:37,077 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:33:37,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:37,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:33:37,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:33:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:37,167 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:33:37,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:33:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:33:37,221 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 [2021-10-13 00:33:37,223 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-10-13 00:33:37,292 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 28 states and 34 transitions. Complement of second has 7 states. [2021-10-13 00:33:37,293 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 [2021-10-13 00:33:37,294 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) [2021-10-13 00:33:37,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2021-10-13 00:33:37,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-13 00:33:37,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:33:37,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 00:33:37,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:33:37,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-13 00:33:37,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:33:37,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 34 transitions. [2021-10-13 00:33:37,307 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:33:37,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2021-10-13 00:33:37,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:33:37,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:33:37,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:33:37,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:33:37,312 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:33:37,312 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:33:37,312 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:33:37,313 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:33:37,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:33:37,313 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:33:37,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:33:37,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:33:37 BoogieIcfgContainer [2021-10-13 00:33:37,319 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:33:37,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:33:37,321 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:33:37,321 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:33:37,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:33:35" (3/4) ... [2021-10-13 00:33:37,324 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:33:37,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:33:37,327 INFO L168 Benchmark]: Toolchain (without parser) took 1922.78 ms. Allocated memory was 92.3 MB in the beginning and 142.6 MB in the end (delta: 50.3 MB). Free memory was 64.3 MB in the beginning and 84.2 MB in the end (delta: -19.9 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:33:37,328 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 60.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:33:37,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.79 ms. Allocated memory is still 92.3 MB. Free memory was 64.2 MB in the beginning and 54.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:33:37,331 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.35 ms. Allocated memory is still 92.3 MB. Free memory was 54.6 MB in the beginning and 53.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:33:37,331 INFO L168 Benchmark]: Boogie Preprocessor took 19.32 ms. Allocated memory is still 92.3 MB. Free memory was 53.2 MB in the beginning and 52.3 MB in the end (delta: 885.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:33:37,339 INFO L168 Benchmark]: RCFGBuilder took 243.75 ms. Allocated memory is still 92.3 MB. Free memory was 52.1 MB in the beginning and 43.5 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:33:37,340 INFO L168 Benchmark]: BuchiAutomizer took 1417.98 ms. Allocated memory was 92.3 MB in the beginning and 142.6 MB in the end (delta: 50.3 MB). Free memory was 43.4 MB in the beginning and 84.2 MB in the end (delta: -40.9 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:33:37,340 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 142.6 MB. Free memory is still 84.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:33:37,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 60.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 198.79 ms. Allocated memory is still 92.3 MB. Free memory was 64.2 MB in the beginning and 54.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.35 ms. Allocated memory is still 92.3 MB. Free memory was 54.6 MB in the beginning and 53.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.32 ms. Allocated memory is still 92.3 MB. Free memory was 53.2 MB in the beginning and 52.3 MB in the end (delta: 885.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 243.75 ms. Allocated memory is still 92.3 MB. Free memory was 52.1 MB in the beginning and 43.5 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1417.98 ms. Allocated memory was 92.3 MB in the beginning and 142.6 MB in the end (delta: 50.3 MB). Free memory was 43.4 MB in the beginning and 84.2 MB in the end (delta: -40.9 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.42 ms. Allocated memory is still 142.6 MB. Free memory is still 84.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 1.3s 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: 10 SDtfs, 12 SDslu, 8 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.7ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 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! [2021-10-13 00:33:37,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:37,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca912e9-5681-491a-956a-0fb24e5aec41/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...