./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/test_while_int.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_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/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_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/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_651507eb-0e52-4d48-8185-1409c517bc70/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 c7eba07debb0aad75be3d6c81175278352db792c .............................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:19:37,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:19:37,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:19:37,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:19:37,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:19:37,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:19:37,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:19:37,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:19:37,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:19:37,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:19:37,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:19:37,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:19:37,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:19:37,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:19:37,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:19:37,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:19:37,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:19:37,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:19:37,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:19:37,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:19:37,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:19:37,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:19:37,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:19:37,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:19:37,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:19:37,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:19:37,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:19:37,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:19:37,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:19:37,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:19:37,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:19:37,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:19:37,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:19:37,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:19:37,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:19:37,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:19:37,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:19:37,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:19:37,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:19:37,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:19:37,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:19:37,541 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:19:37,595 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:19:37,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:19:37,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:19:37,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:19:37,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:19:37,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:19:37,604 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:19:37,605 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:19:37,605 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:19:37,605 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:19:37,606 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:19:37,607 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:19:37,607 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:19:37,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:19:37,608 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:19:37,608 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:19:37,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:19:37,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:19:37,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:19:37,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:19:37,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:19:37,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:19:37,610 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:19:37,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:19:37,610 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:19:37,611 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:19:37,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:19:37,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:19:37,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:19:37,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:19:37,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:19:37,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:19:37,617 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:19:37,617 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_651507eb-0e52-4d48-8185-1409c517bc70/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7eba07debb0aad75be3d6c81175278352db792c [2021-10-13 00:19:37,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:19:37,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:19:37,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:19:37,981 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:19:37,983 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:19:37,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-regression/test_while_int.i [2021-10-13 00:19:38,082 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/data/bacb04338/a358e35204ba4be1996153da7041f283/FLAGec927e25b [2021-10-13 00:19:38,724 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:19:38,725 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/sv-benchmarks/c/ldv-regression/test_while_int.i [2021-10-13 00:19:38,732 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/data/bacb04338/a358e35204ba4be1996153da7041f283/FLAGec927e25b [2021-10-13 00:19:39,100 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/data/bacb04338/a358e35204ba4be1996153da7041f283 [2021-10-13 00:19:39,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:19:39,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:19:39,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:19:39,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:19:39,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:19:39,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:19:39" (1/1) ... [2021-10-13 00:19:39,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0e45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39, skipping insertion in model container [2021-10-13 00:19:39,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:19:39" (1/1) ... [2021-10-13 00:19:39,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:19:39,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:19:39,308 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_651507eb-0e52-4d48-8185-1409c517bc70/sv-benchmarks/c/ldv-regression/test_while_int.i[296,309] [2021-10-13 00:19:39,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:19:39,351 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:19:39,367 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_651507eb-0e52-4d48-8185-1409c517bc70/sv-benchmarks/c/ldv-regression/test_while_int.i[296,309] [2021-10-13 00:19:39,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:19:39,386 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:19:39,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39 WrapperNode [2021-10-13 00:19:39,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:19:39,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:19:39,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:19:39,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:19:39,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2021-10-13 00:19:39,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2021-10-13 00:19:39,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:19:39,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:19:39,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:19:39,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:19:39,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2021-10-13 00:19:39,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2021-10-13 00:19:39,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2021-10-13 00:19:39,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2021-10-13 00:19:39,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2021-10-13 00:19:39,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2021-10-13 00:19:39,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2021-10-13 00:19:39,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:19:39,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:19:39,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:19:39,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:19:39,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2021-10-13 00:19:39,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:39,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:39,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:39,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:19:39,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:19:39,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:19:39,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:19:39,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:19:39,763 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:19:39,764 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-13 00:19:39,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:19:39 BoogieIcfgContainer [2021-10-13 00:19:39,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:19:39,768 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:19:39,768 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:19:39,773 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:19:39,774 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:19:39,774 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:19:39" (1/3) ... [2021-10-13 00:19:39,776 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a62a8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:19:39, skipping insertion in model container [2021-10-13 00:19:39,776 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:19:39,777 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (2/3) ... [2021-10-13 00:19:39,777 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a62a8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:19:39, skipping insertion in model container [2021-10-13 00:19:39,777 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:19:39,778 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:19:39" (3/3) ... [2021-10-13 00:19:39,780 INFO L389 chiAutomizerObserver]: Analyzing ICFG test_while_int.i [2021-10-13 00:19:39,836 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:19:39,836 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:19:39,836 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:19:39,837 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:19:39,837 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:19:39,837 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:19:39,837 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:19:39,838 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:19:39,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:19:39,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:19:39,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:39,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:39,889 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:19:39,890 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:19:39,890 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:19:39,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:19:39,892 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:19:39,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:39,893 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:39,894 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:19:39,894 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:19:39,903 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(17);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true havoc main_#res;havoc main_#t~post7, main_~i~0;main_~i~0 := 0; 6#L6true [2021-10-13 00:19:39,904 INFO L793 eck$LassoCheckResult]: Loop: 6#L6true assume !!(main_~i~0 < 5);main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7;check_error_#in~b := (if 3 != main_~i~0 then 1 else 0);havoc check_error_~b;check_error_~b := check_error_#in~b; 9#L20true assume 0 != check_error_~b; 6#L6true [2021-10-13 00:19:39,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:39,915 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-13 00:19:39,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:39,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132953175] [2021-10-13 00:19:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:39,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:40,062 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:40,107 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:40,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:40,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2021-10-13 00:19:40,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:40,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760602188] [2021-10-13 00:19:40,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:40,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:40,141 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:40,160 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:40,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:40,172 INFO L82 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2021-10-13 00:19:40,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:40,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349239384] [2021-10-13 00:19:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:40,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:40,220 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:40,266 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:40,446 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:19:40,447 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:19:40,460 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:19:40,461 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:19:40,461 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:19:40,461 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:40,461 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:19:40,462 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:19:40,462 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2021-10-13 00:19:40,462 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:19:40,462 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:19:40,500 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 00:19:40,522 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 00:19:40,532 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 00:19:40,711 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:19:40,712 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:19:40,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:40,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:40,741 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:40,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:19:40,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:40,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:19:40,816 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:19:40,816 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:19:40,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:40,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:40,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:40,863 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:40,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:19:40,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:19:40,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:40,899 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:19:40,899 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_check_error_#in~b=1, ULTIMATE.start_check_error_~b=1} Honda state: {ULTIMATE.start_check_error_#in~b=1, ULTIMATE.start_check_error_~b=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:19:40,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:40,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:40,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:40,927 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:40,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:19:40,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:19:40,935 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:40,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:40,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:40,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:40,997 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:41,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:19:41,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:41,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:19:41,151 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:19:41,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:41,158 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:19:41,159 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:19:41,159 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:19:41,159 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:19:41,159 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:19:41,159 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:41,159 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:19:41,159 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:19:41,160 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2021-10-13 00:19:41,160 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:19:41,161 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:19:41,171 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 00:19:41,177 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 00:19:41,187 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 00:19:41,281 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:19:41,287 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:19:41,289 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:41,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:41,291 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:41,325 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 00:19:41,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:41,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:41,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:41,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:41,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:41,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:41,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:41,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:19:41,361 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:41,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:41,409 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:41,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:41,411 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:41,428 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 00:19:41,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:41,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:41,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:41,443 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 00:19:41,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:41,446 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:41,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:41,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:19:41,476 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:19:41,481 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:19:41,481 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:19:41,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:41,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:41,492 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:41,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:19:41,505 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:19:41,506 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:19:41,506 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:19:41,506 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 9 Supporting invariants [] [2021-10-13 00:19:41,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:41,554 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:19:41,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:41,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:19:41,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:19:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:41,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:19:41,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:19:41,685 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 00:19:41,704 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 00:19:41,706 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:19:41,750 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 31 transitions. Complement of second has 5 states. [2021-10-13 00:19:41,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:19:41,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:19:41,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2021-10-13 00:19:41,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-13 00:19:41,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:19:41,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 00:19:41,757 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:19:41,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-13 00:19:41,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:19:41,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-10-13 00:19:41,762 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:19:41,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-10-13 00:19:41,767 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:19:41,767 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:19:41,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:19:41,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:19:41,768 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:19:41,768 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:19:41,768 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:19:41,769 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:19:41,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:19:41,769 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:19:41,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:19:41,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:19:41 BoogieIcfgContainer [2021-10-13 00:19:41,776 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:19:41,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:19:41,777 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:19:41,778 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:19:41,778 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:19:39" (3/4) ... [2021-10-13 00:19:41,782 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:19:41,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:19:41,784 INFO L168 Benchmark]: Toolchain (without parser) took 2667.27 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 60.4 MB in the beginning and 72.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:41,785 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 90.2 MB. Free memory is still 47.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:19:41,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.57 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 60.2 MB in the beginning and 94.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:41,787 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.06 ms. Allocated memory is still 117.4 MB. Free memory was 94.8 MB in the beginning and 93.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:19:41,788 INFO L168 Benchmark]: Boogie Preprocessor took 25.68 ms. Allocated memory is still 117.4 MB. Free memory was 93.6 MB in the beginning and 92.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:41,789 INFO L168 Benchmark]: RCFGBuilder took 309.29 ms. Allocated memory is still 117.4 MB. Free memory was 92.3 MB in the beginning and 83.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:41,789 INFO L168 Benchmark]: BuchiAutomizer took 2008.61 ms. Allocated memory is still 117.4 MB. Free memory was 83.5 MB in the beginning and 72.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:41,790 INFO L168 Benchmark]: Witness Printer took 4.82 ms. Allocated memory is still 117.4 MB. Free memory was 72.9 MB in the beginning and 72.6 MB in the end (delta: 351.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:19:41,795 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 90.2 MB. Free memory is still 47.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.57 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 60.2 MB in the beginning and 94.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.06 ms. Allocated memory is still 117.4 MB. Free memory was 94.8 MB in the beginning and 93.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.68 ms. Allocated memory is still 117.4 MB. Free memory was 93.6 MB in the beginning and 92.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 309.29 ms. Allocated memory is still 117.4 MB. Free memory was 92.3 MB in the beginning and 83.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2008.61 ms. Allocated memory is still 117.4 MB. Free memory was 83.5 MB in the beginning and 72.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.82 ms. Allocated memory is still 117.4 MB. Free memory was 72.9 MB in the beginning and 72.6 MB in the end (delta: 351.3 kB). 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 * i + 9 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. 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: 7 SDtfs, 7 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf165 smp92 tf105 neg94 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 96ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 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 00:19:41,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-13 00:19:42,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_651507eb-0e52-4d48-8185-1409c517bc70/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...