./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF --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 b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:35:25,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:35:25,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:35:25,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:35:25,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:35:25,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:35:25,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:35:25,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:35:25,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:35:25,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:35:25,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:35:25,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:35:25,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:35:25,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:35:25,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:35:25,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:35:25,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:35:25,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:35:25,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:35:25,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:35:25,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:35:25,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:35:25,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:35:25,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:35:25,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:35:25,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:35:25,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:35:25,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:35:25,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:35:25,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:35:25,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:35:25,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:35:25,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:35:25,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:35:25,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:35:25,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:35:25,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:35:25,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:35:25,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:35:25,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:35:25,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:35:25,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 07:35:25,820 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:35:25,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:35:25,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:35:25,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:35:25,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:35:25,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:35:25,823 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:35:25,823 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:35:25,823 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:35:25,824 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:35:25,825 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:35:25,825 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:35:25,825 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:35:25,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:35:25,826 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:35:25,826 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:35:25,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:35:25,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:35:25,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:35:25,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:35:25,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:35:25,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:35:25,828 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:35:25,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:35:25,828 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:35:25,828 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:35:25,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:35:25,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:35:25,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:35:25,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:35:25,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:35:25,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:35:25,833 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:35:25,833 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_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 [2021-11-20 07:35:26,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:35:26,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:35:26,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:35:26,112 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:35:26,114 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:35:26,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-11-20 07:35:26,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/data/6160b5393/c888d0ed0ea046ab848c6fc13c45e5bf/FLAG22b184f56 [2021-11-20 07:35:26,627 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:35:26,627 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-11-20 07:35:26,634 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/data/6160b5393/c888d0ed0ea046ab848c6fc13c45e5bf/FLAG22b184f56 [2021-11-20 07:35:27,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/data/6160b5393/c888d0ed0ea046ab848c6fc13c45e5bf [2021-11-20 07:35:27,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:35:27,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:35:27,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:35:27,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:35:27,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:35:27,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:35:27" (1/1) ... [2021-11-20 07:35:27,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373f5fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:27, skipping insertion in model container [2021-11-20 07:35:27,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:35:27" (1/1) ... [2021-11-20 07:35:27,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:35:27,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:35:27,245 WARN L230 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_5146743b-52d9-4123-9fe8-fcdaa4b4893a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-11-20 07:35:27,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:35:27,271 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:35:27,282 WARN L230 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_5146743b-52d9-4123-9fe8-fcdaa4b4893a/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-11-20 07:35:27,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:35:27,309 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:35:27,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:27 WrapperNode [2021-11-20 07:35:27,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:35:27,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:35:27,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:35:27,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:35:27,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:27" (1/1) ... [2021-11-20 07:35:27,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:27" (1/1) ... [2021-11-20 07:35:27,377 INFO L137 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 207 [2021-11-20 07:35:27,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:35:27,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:35:27,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:35:27,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:35:27,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:27" (1/1) ... [2021-11-20 07:35:27,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:27" (1/1) ... [2021-11-20 07:35:27,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:27" (1/1) ... [2021-11-20 07:35:27,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:27" (1/1) ... [2021-11-20 07:35:27,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:27" (1/1) ... [2021-11-20 07:35:27,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:27" (1/1) ... [2021-11-20 07:35:27,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:27" (1/1) ... [2021-11-20 07:35:27,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:35:27,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:35:27,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:35:27,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:35:27,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:27" (1/1) ... [2021-11-20 07:35:27,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:35:27,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:27,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:35:27,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:35:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:35:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:35:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:35:27,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:35:27,543 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:35:27,544 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:35:27,756 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:35:27,764 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:35:27,764 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 07:35:27,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:35:27 BoogieIcfgContainer [2021-11-20 07:35:27,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:35:27,767 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:35:27,767 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:35:27,771 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:35:27,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:35:27,772 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:35:27" (1/3) ... [2021-11-20 07:35:27,789 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c1a578b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:35:27, skipping insertion in model container [2021-11-20 07:35:27,789 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:35:27,789 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:27" (2/3) ... [2021-11-20 07:35:27,790 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c1a578b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:35:27, skipping insertion in model container [2021-11-20 07:35:27,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:35:27,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:35:27" (3/3) ... [2021-11-20 07:35:27,791 INFO L388 chiAutomizerObserver]: Analyzing ICFG apache-escape-absolute.i [2021-11-20 07:35:27,876 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:35:27,877 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:35:27,877 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:35:27,877 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:35:27,877 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:35:27,877 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:35:27,877 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:35:27,878 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:35:27,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 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) [2021-11-20 07:35:27,938 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 29 [2021-11-20 07:35:27,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:35:27,939 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:35:27,958 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:27,958 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:35:27,958 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:35:27,959 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 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) [2021-11-20 07:35:27,970 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 29 [2021-11-20 07:35:27,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:35:27,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:35:27,972 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:27,972 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:35:27,979 INFO L791 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 51#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~pre6#1, main_#t~pre7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~pre10#1, main_#t~pre11#1, main_~scheme~0#1, main_~urilen~0#1, main_~tokenlen~0#1, main_~cp~0#1, main_~c~0#1;havoc main_~scheme~0#1;havoc main_~urilen~0#1;havoc main_~tokenlen~0#1;havoc main_~cp~0#1;havoc main_~c~0#1;main_~urilen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~tokenlen~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~scheme~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 27#L32true assume !!(main_~urilen~0#1 <= 1000000 && main_~urilen~0#1 >= -1000000); 26#L33true assume !!(main_~tokenlen~0#1 <= 1000000 && main_~tokenlen~0#1 >= -1000000); 35#L34true assume !!(main_~scheme~0#1 <= 1000000 && main_~scheme~0#1 >= -1000000); 61#L35true assume main_~urilen~0#1 > 0; 53#L35-1true assume main_~tokenlen~0#1 > 0; 66#L36true assume main_~scheme~0#1 >= 0; 69#L37true assume !(0 == main_~scheme~0#1 || main_~urilen~0#1 - 1 < main_~scheme~0#1);main_~cp~0#1 := main_~scheme~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~cp~0#1 - 1 < main_~urilen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 32#L18true assume !(0 == __VERIFIER_assert_~cond#1); 57#L18-2true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~cp~0#1 - 1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 59#L18-3true assume !(0 == __VERIFIER_assert_~cond#1); 4#L18-5true assume { :end_inline___VERIFIER_assert } true; 46#L44true assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~cp~0#1 < main_~urilen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 58#L18-6true assume !(0 == __VERIFIER_assert_~cond#1); 52#L18-8true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~cp~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 71#L18-9true assume !(0 == __VERIFIER_assert_~cond#1); 36#L18-11true assume { :end_inline___VERIFIER_assert } true; 60#L47-2true [2021-11-20 07:35:27,979 INFO L793 eck$LassoCheckResult]: Loop: 60#L47-2true assume !!(main_~cp~0#1 != main_~urilen~0#1 - 1); 21#L48true assume !(0 != main_#t~nondet5#1);havoc main_#t~nondet5#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~cp~0#1 < main_~urilen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11#L18-12true assume !(0 == __VERIFIER_assert_~cond#1); 29#L18-14true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~cp~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 24#L18-15true assume !(0 == __VERIFIER_assert_~cond#1); 38#L18-17true assume { :end_inline___VERIFIER_assert } true;main_#t~pre6#1 := 1 + main_~cp~0#1;main_~cp~0#1 := 1 + main_~cp~0#1;havoc main_#t~pre6#1; 60#L47-2true [2021-11-20 07:35:27,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:27,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1239436696, now seen corresponding path program 1 times [2021-11-20 07:35:28,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:28,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880955687] [2021-11-20 07:35:28,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:28,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:35:28,154 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:35:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:35:28,260 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:35:28,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:28,264 INFO L85 PathProgramCache]: Analyzing trace with hash -680795444, now seen corresponding path program 1 times [2021-11-20 07:35:28,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:28,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022721485] [2021-11-20 07:35:28,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:28,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:35:28,297 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:35:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:35:28,347 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:35:28,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:28,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1742738445, now seen corresponding path program 1 times [2021-11-20 07:35:28,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:28,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464673394] [2021-11-20 07:35:28,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:28,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:35:28,390 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:35:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:35:28,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:35:28,681 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:35:28,681 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:35:28,682 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:35:28,682 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:35:28,682 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:35:28,682 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:35:28,683 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:35:28,683 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:35:28,683 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2021-11-20 07:35:28,683 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:35:28,683 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:35:28,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:35:28,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:35:28,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:35:28,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:35:28,811 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:35:28,811 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:35:28,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:35:28,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:28,817 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:35:28,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 07:35:28,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:35:28,824 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:35:28,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-20 07:35:28,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:35:28,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:28,884 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:35:28,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:35:28,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:35:28,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 07:35:28,972 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:35:28,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:35:28,981 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:35:28,982 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:35:28,982 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:35:28,982 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:35:28,982 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:35:28,982 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:35:28,982 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:35:28,982 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:35:28,983 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2021-11-20 07:35:28,983 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:35:28,983 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:35:28,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:35:28,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:35:29,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:35:29,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:35:29,069 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:35:29,074 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:35:29,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:35:29,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:29,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:35:29,097 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 [2021-11-20 07:35:29,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:35:29,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:35:29,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:35:29,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:35:29,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:35:29,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:35:29,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:35:29,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 07:35:29,114 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:35:29,131 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:35:29,131 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:35:29,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:35:29,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:29,135 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:35:29,141 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:35:29,141 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:35:29,141 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:35:29,142 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~cp~0#1, ULTIMATE.start_main_~urilen~0#1) = -1*ULTIMATE.start_main_~cp~0#1 + 1*ULTIMATE.start_main_~urilen~0#1 Supporting invariants [] [2021-11-20 07:35:29,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 07:35:29,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:35:29,182 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:35:29,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:29,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:35:29,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:35:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:29,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 07:35:29,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:35:29,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:29,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:35:29,616 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:35:29,617 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 77 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 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 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:35:29,834 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 77 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 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 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 215 states and 287 transitions. Complement of second has 11 states. [2021-11-20 07:35:29,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2021-11-20 07:35:29,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:35:29,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 215 transitions. [2021-11-20 07:35:29,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 215 transitions. Stem has 18 letters. Loop has 6 letters. [2021-11-20 07:35:29,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:35:29,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 215 transitions. Stem has 24 letters. Loop has 6 letters. [2021-11-20 07:35:29,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:35:29,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 215 transitions. Stem has 18 letters. Loop has 12 letters. [2021-11-20 07:35:29,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:35:29,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 287 transitions. [2021-11-20 07:35:29,888 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:35:29,890 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 0 states and 0 transitions. [2021-11-20 07:35:29,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 07:35:29,892 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 07:35:29,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 07:35:29,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:35:29,893 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:35:29,893 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:35:29,893 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:35:29,893 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:35:29,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:35:29,893 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:35:29,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 07:35:29,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:35:29 BoogieIcfgContainer [2021-11-20 07:35:29,901 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:35:29,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:35:29,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:35:29,902 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:35:29,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:35:27" (3/4) ... [2021-11-20 07:35:29,906 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:35:29,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:35:29,907 INFO L158 Benchmark]: Toolchain (without parser) took 2874.07ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 60.1MB in the beginning and 75.1MB in the end (delta: -15.0MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2021-11-20 07:35:29,908 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory was 49.4MB in the beginning and 49.3MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:35:29,909 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.94ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 59.9MB in the beginning and 89.1MB in the end (delta: -29.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:35:29,909 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.21ms. Allocated memory is still 115.3MB. Free memory was 89.1MB in the beginning and 87.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:35:29,910 INFO L158 Benchmark]: Boogie Preprocessor took 26.63ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 85.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:35:29,911 INFO L158 Benchmark]: RCFGBuilder took 360.81ms. Allocated memory is still 115.3MB. Free memory was 85.9MB in the beginning and 72.7MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 07:35:29,911 INFO L158 Benchmark]: BuchiAutomizer took 2133.90ms. Allocated memory is still 115.3MB. Free memory was 72.7MB in the beginning and 75.1MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:35:29,912 INFO L158 Benchmark]: Witness Printer took 4.40ms. Allocated memory is still 115.3MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:35:29,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory was 49.4MB in the beginning and 49.3MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.94ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 59.9MB in the beginning and 89.1MB in the end (delta: -29.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.21ms. Allocated memory is still 115.3MB. Free memory was 89.1MB in the beginning and 87.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.63ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 85.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 360.81ms. Allocated memory is still 115.3MB. Free memory was 85.9MB in the beginning and 72.7MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2133.90ms. Allocated memory is still 115.3MB. Free memory was 72.7MB in the beginning and 75.1MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.40ms. Allocated memory is still 115.3MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * 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 -1 * cp + urilen and consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. 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: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 62 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital28 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf96 smp69 dnf100 smp100 tf109 neg95 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 66ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-20 07:35:29,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5146743b-52d9-4123-9fe8-fcdaa4b4893a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE