./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer --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 93bb43afb01d6e3a62dc39071b7659c8b1c085d1 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:00:40,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:00:40,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:00:40,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:00:40,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:00:40,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:00:40,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:00:40,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:00:40,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:00:40,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:00:40,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:00:40,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:00:40,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:00:40,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:00:40,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:00:40,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:00:40,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:00:40,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:00:40,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:00:40,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:00:40,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:00:40,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:00:40,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:00:40,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:00:40,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:00:40,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:00:40,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:00:40,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:00:40,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:00:40,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:00:40,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:00:40,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:00:40,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:00:40,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:00:40,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:00:40,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:00:40,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:00:40,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:00:40,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:00:40,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:00:40,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:00:40,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:00:40,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:00:40,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:00:40,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:00:40,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:00:40,192 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:00:40,192 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:00:40,192 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:00:40,192 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:00:40,193 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:00:40,193 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:00:40,194 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:00:40,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:00:40,195 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:00:40,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:00:40,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:00:40,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:00:40,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:00:40,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:00:40,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:00:40,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:00:40,196 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:00:40,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:00:40,197 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:00:40,197 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:00:40,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:00:40,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:00:40,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:00:40,198 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:00:40,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:00:40,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:00:40,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:00:40,199 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:00:40,200 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:00:40,201 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-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93bb43afb01d6e3a62dc39071b7659c8b1c085d1 [2020-11-28 03:00:40,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:00:40,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:00:40,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:00:40,576 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:00:40,577 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:00:40,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2020-11-28 03:00:40,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/data/e7e60708e/fc14089b43d045ccb9199f337c446d5d/FLAG833f5ad35 [2020-11-28 03:00:41,130 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:00:41,131 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2020-11-28 03:00:41,153 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/data/e7e60708e/fc14089b43d045ccb9199f337c446d5d/FLAG833f5ad35 [2020-11-28 03:00:41,486 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/data/e7e60708e/fc14089b43d045ccb9199f337c446d5d [2020-11-28 03:00:41,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:00:41,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:00:41,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:00:41,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:00:41,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:00:41,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:00:41" (1/1) ... [2020-11-28 03:00:41,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c60dc55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41, skipping insertion in model container [2020-11-28 03:00:41,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:00:41" (1/1) ... [2020-11-28 03:00:41,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:00:41,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:00:41,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:00:41,763 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:00:41,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:00:41,826 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:00:41,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41 WrapperNode [2020-11-28 03:00:41,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:00:41,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:00:41,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:00:41,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:00:41,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41" (1/1) ... [2020-11-28 03:00:41,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41" (1/1) ... [2020-11-28 03:00:41,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:00:41,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:00:41,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:00:41,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:00:41,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41" (1/1) ... [2020-11-28 03:00:41,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41" (1/1) ... [2020-11-28 03:00:41,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41" (1/1) ... [2020-11-28 03:00:41,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41" (1/1) ... [2020-11-28 03:00:41,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41" (1/1) ... [2020-11-28 03:00:41,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41" (1/1) ... [2020-11-28 03:00:41,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41" (1/1) ... [2020-11-28 03:00:41,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:00:41,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:00:41,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:00:41,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:00:41,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:00:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:00:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:00:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:00:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:00:42,611 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:00:42,612 INFO L298 CfgBuilder]: Removed 78 assume(true) statements. [2020-11-28 03:00:42,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:42 BoogieIcfgContainer [2020-11-28 03:00:42,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:00:42,623 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:00:42,636 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:00:42,639 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:00:42,640 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:00:42,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:00:41" (1/3) ... [2020-11-28 03:00:42,642 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d0d0fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:00:42, skipping insertion in model container [2020-11-28 03:00:42,642 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:00:42,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41" (2/3) ... [2020-11-28 03:00:42,643 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d0d0fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:00:42, skipping insertion in model container [2020-11-28 03:00:42,643 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:00:42,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:42" (3/3) ... [2020-11-28 03:00:42,645 INFO L373 chiAutomizerObserver]: Analyzing ICFG apache-escape-absolute.i [2020-11-28 03:00:42,692 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:00:42,692 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:00:42,693 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:00:42,693 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:00:42,693 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:00:42,693 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:00:42,693 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:00:42,694 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:00:42,710 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states. [2020-11-28 03:00:42,734 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-11-28 03:00:42,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:00:42,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:00:42,741 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:42,741 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:00:42,742 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:00:42,742 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states. [2020-11-28 03:00:42,749 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-11-28 03:00:42,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:00:42,749 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:00:42,750 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:42,750 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:00:42,756 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 10#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~pre8, main_#t~pre9, main_#t~nondet10, main_#t~nondet11, main_#t~pre12, main_#t~pre13, main_~scheme~0, main_~urilen~0, main_~tokenlen~0, main_~cp~0, main_~c~0;havoc main_~scheme~0;havoc main_~urilen~0;havoc main_~tokenlen~0;havoc main_~cp~0;havoc main_~c~0;main_~urilen~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~tokenlen~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~scheme~0 := main_#t~nondet5;havoc main_#t~nondet5; 13#L32true assume !!(main_~urilen~0 <= 1000000 && main_~urilen~0 >= -1000000); 70#L33true assume !!(main_~tokenlen~0 <= 1000000 && main_~tokenlen~0 >= -1000000); 31#L34true assume !!(main_~scheme~0 <= 1000000 && main_~scheme~0 >= -1000000); 105#L35true assume main_~urilen~0 > 0; 104#L35-1true assume main_~tokenlen~0 > 0; 53#L36true assume main_~scheme~0 >= 0; 19#L37true assume !(0 == main_~scheme~0 || main_~urilen~0 - 1 < main_~scheme~0);main_~cp~0 := main_~scheme~0;__VERIFIER_assert_#in~cond := (if main_~cp~0 - 1 < main_~urilen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 7#L18true assume !(0 == __VERIFIER_assert_~cond); 5#L18-2true __VERIFIER_assert_#in~cond := (if 0 <= main_~cp~0 - 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 3#L18-3true assume !(0 == __VERIFIER_assert_~cond); 17#L18-5true assume 0 != main_#t~nondet6;havoc main_#t~nondet6;__VERIFIER_assert_#in~cond := (if main_~cp~0 < main_~urilen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 15#L18-6true assume !(0 == __VERIFIER_assert_~cond); 11#L18-8true __VERIFIER_assert_#in~cond := (if 0 <= main_~cp~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 98#L18-9true assume !(0 == __VERIFIER_assert_~cond); 52#L47-1true [2020-11-28 03:00:42,757 INFO L796 eck$LassoCheckResult]: Loop: 52#L47-1true assume !!(main_~cp~0 != main_~urilen~0 - 1); 20#L48true assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;__VERIFIER_assert_#in~cond := (if main_~cp~0 < main_~urilen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 95#L18-12true assume !(0 == __VERIFIER_assert_~cond); 108#L18-14true __VERIFIER_assert_#in~cond := (if 0 <= main_~cp~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 106#L18-15true assume !(0 == __VERIFIER_assert_~cond); 102#L18-17true main_#t~pre8 := 1 + main_~cp~0;main_~cp~0 := 1 + main_~cp~0;havoc main_#t~pre8; 52#L47-1true [2020-11-28 03:00:42,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:42,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1521287159, now seen corresponding path program 1 times [2020-11-28 03:00:42,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:42,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035466051] [2020-11-28 03:00:42,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:00:42,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:00:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:00:42,916 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:00:42,939 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:00:42,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:42,941 INFO L82 PathProgramCache]: Analyzing trace with hash 88590124, now seen corresponding path program 1 times [2020-11-28 03:00:42,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:42,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937537318] [2020-11-28 03:00:42,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:00:42,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:00:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:00:42,962 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:00:42,965 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:00:42,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:42,967 INFO L82 PathProgramCache]: Analyzing trace with hash -947085004, now seen corresponding path program 1 times [2020-11-28 03:00:42,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:42,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467473412] [2020-11-28 03:00:42,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:00:42,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:00:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:00:43,018 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:00:43,024 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:00:43,110 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:00:43,111 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:00:43,215 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:00:43,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:00:43,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:00:43,216 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:00:43,216 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:00:43,216 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:00:43,216 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:00:43,216 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:00:43,217 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2020-11-28 03:00:43,217 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:00:43,217 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:00:43,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:00:43,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:00:43,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:00:43,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:00:43,422 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:00:43,422 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:00:43,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:00:43,429 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:00:43,437 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:00:43,438 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre8=0} Honda state: {ULTIMATE.start_main_#t~pre8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:00:43,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:00:43,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:00:43,488 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:00:43,489 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet7=0} Honda state: {ULTIMATE.start_main_#t~nondet7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:00:43,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:00:43,533 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:00:43,539 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:00:43,539 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:00:43,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:00:43,574 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:00:43,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:00:43,608 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:00:43,668 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:00:43,670 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:00:43,670 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:00:43,671 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:00:43,671 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:00:43,671 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:00:43,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:00:43,671 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:00:43,671 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:00:43,671 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2020-11-28 03:00:43,671 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:00:43,672 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:00:43,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:00:43,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:00:43,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:00:43,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:00:43,817 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:00:43,821 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:00:43,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:00:43,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:00:43,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:00:43,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:00:43,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:00:43,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:00:43,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:00:43,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:00:43,845 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:00:43,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:00:43,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:00:43,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:00:43,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:00:43,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:00:43,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:00:43,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:00:43,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:00:43,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:00:43,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:00:43,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:00:43,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:00:43,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:00:43,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:00:43,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:00:43,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:00:43,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:00:43,930 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:00:43,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:00:43,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:00:43,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:00:43,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:00:43,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:00:43,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:00:43,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:00:43,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:00:43,974 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:00:43,981 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:00:43,981 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76fc83c0-cbc5-4525-bd07-2262d54f94e2/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:00:43,996 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:00:43,996 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:00:43,996 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:00:43,997 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~urilen~0, ULTIMATE.start_main_~cp~0) = 1*ULTIMATE.start_main_~urilen~0 - 1*ULTIMATE.start_main_~cp~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:00:44,033 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:00:44,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:44,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:00:44,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:00:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:44,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:00:44,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:00:44,186 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:00:44,186 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:00:44,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:00:44,218 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 [2020-11-28 03:00:44,219 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states. Second operand 5 states. [2020-11-28 03:00:44,437 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 10 [2020-11-28 03:00:44,669 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states.. Second operand 5 states. Result 259 states and 364 transitions. Complement of second has 11 states. [2020-11-28 03:00:44,672 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 [2020-11-28 03:00:44,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-28 03:00:44,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 285 transitions. [2020-11-28 03:00:44,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 285 transitions. Stem has 16 letters. Loop has 6 letters. [2020-11-28 03:00:44,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:00:44,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 285 transitions. Stem has 22 letters. Loop has 6 letters. [2020-11-28 03:00:44,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:00:44,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 285 transitions. Stem has 16 letters. Loop has 12 letters. [2020-11-28 03:00:44,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:00:44,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 259 states and 364 transitions. [2020-11-28 03:00:44,695 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:00:44,701 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 259 states to 0 states and 0 transitions. [2020-11-28 03:00:44,702 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:00:44,702 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:00:44,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:00:44,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:00:44,704 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:00:44,705 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:00:44,705 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:00:44,705 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:00:44,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:00:44,705 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:00:44,705 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:00:44,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:00:44 BoogieIcfgContainer [2020-11-28 03:00:44,711 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:00:44,711 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:00:44,711 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:00:44,712 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:00:44,712 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:42" (3/4) ... [2020-11-28 03:00:44,715 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:00:44,715 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:00:44,718 INFO L168 Benchmark]: Toolchain (without parser) took 3224.78 ms. Allocated memory was 81.8 MB in the beginning and 113.2 MB in the end (delta: 31.5 MB). Free memory was 50.7 MB in the beginning and 51.4 MB in the end (delta: -714.1 kB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:44,719 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 81.8 MB. Free memory was 40.9 MB in the beginning and 40.8 MB in the end (delta: 35.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:00:44,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.86 ms. Allocated memory is still 81.8 MB. Free memory was 50.3 MB in the beginning and 59.2 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:44,723 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.00 ms. Allocated memory is still 81.8 MB. Free memory was 59.2 MB in the beginning and 57.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:44,724 INFO L168 Benchmark]: Boogie Preprocessor took 35.85 ms. Allocated memory is still 81.8 MB. Free memory was 57.1 MB in the beginning and 55.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:44,727 INFO L168 Benchmark]: RCFGBuilder took 697.70 ms. Allocated memory was 81.8 MB in the beginning and 113.2 MB in the end (delta: 31.5 MB). Free memory was 55.3 MB in the beginning and 91.4 MB in the end (delta: -36.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:44,734 INFO L168 Benchmark]: BuchiAutomizer took 2087.54 ms. Allocated memory is still 113.2 MB. Free memory was 91.4 MB in the beginning and 51.4 MB in the end (delta: 40.0 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:44,735 INFO L168 Benchmark]: Witness Printer took 3.88 ms. Allocated memory is still 113.2 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:00:44,740 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 81.8 MB. Free memory was 40.9 MB in the beginning and 40.8 MB in the end (delta: 35.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.86 ms. Allocated memory is still 81.8 MB. Free memory was 50.3 MB in the beginning and 59.2 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.00 ms. Allocated memory is still 81.8 MB. Free memory was 59.2 MB in the beginning and 57.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.85 ms. Allocated memory is still 81.8 MB. Free memory was 57.1 MB in the beginning and 55.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 697.70 ms. Allocated memory was 81.8 MB in the beginning and 113.2 MB in the end (delta: 31.5 MB). Free memory was 55.3 MB in the beginning and 91.4 MB in the end (delta: -36.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2087.54 ms. Allocated memory is still 113.2 MB. Free memory was 91.4 MB in the beginning and 51.4 MB in the end (delta: 40.0 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. * Witness Printer took 3.88 ms. Allocated memory is still 113.2 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function urilen + -1 * cp 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 0.1s. Büchi inclusion checks took 0.4s. 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: 71 SDtfs, 98 SDslu, 59 SDs, 0 SdLazy, 96 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time 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: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 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! Received shutdown request...