./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/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 64bit --witnessprinter.graph.data.programhash 0a93871a8dae316852c5fe296af5e1db1eea1d37 ............................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:06:09,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:06:09,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:06:10,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:06:10,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:06:10,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:06:10,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:06:10,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:06:10,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:06:10,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:06:10,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:06:10,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:06:10,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:06:10,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:06:10,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:06:10,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:06:10,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:06:10,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:06:10,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:06:10,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:06:10,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:06:10,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:06:10,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:06:10,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:06:10,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:06:10,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:06:10,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:06:10,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:06:10,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:06:10,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:06:10,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:06:10,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:06:10,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:06:10,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:06:10,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:06:10,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:06:10,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:06:10,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:06:10,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:06:10,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:06:10,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:06:10,120 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:06:10,162 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:06:10,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:06:10,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:06:10,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:06:10,166 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:06:10,166 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:06:10,166 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:06:10,167 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:06:10,167 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:06:10,167 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:06:10,168 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:06:10,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:06:10,169 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:06:10,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:06:10,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:06:10,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:06:10,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:06:10,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:06:10,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:06:10,171 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:06:10,171 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:06:10,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:06:10,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:06:10,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:06:10,172 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:06:10,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:06:10,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:06:10,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:06:10,174 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:06:10,177 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:06:10,177 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_3e6833b1-6bb5-426f-84af-6a193e854e59/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a93871a8dae316852c5fe296af5e1db1eea1d37 [2020-11-28 03:06:10,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:06:10,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:06:10,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:06:10,548 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:06:10,549 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:06:10,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-2.c [2020-11-28 03:06:10,632 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/bin/uautomizer/data/7f4314725/cc316f4ccf154313a42ea63f50f1a90e/FLAGb48544278 [2020-11-28 03:06:11,156 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:06:11,156 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-2.c [2020-11-28 03:06:11,165 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/bin/uautomizer/data/7f4314725/cc316f4ccf154313a42ea63f50f1a90e/FLAGb48544278 [2020-11-28 03:06:11,542 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/bin/uautomizer/data/7f4314725/cc316f4ccf154313a42ea63f50f1a90e [2020-11-28 03:06:11,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:06:11,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:06:11,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:06:11,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:06:11,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:06:11,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:11" (1/1) ... [2020-11-28 03:06:11,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c30c0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:11, skipping insertion in model container [2020-11-28 03:06:11,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:11" (1/1) ... [2020-11-28 03:06:11,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:06:11,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:06:11,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:06:11,736 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:06:11,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:06:11,785 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:06:11,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:11 WrapperNode [2020-11-28 03:06:11,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:06:11,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:06:11,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:06:11,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:06:11,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:11" (1/1) ... [2020-11-28 03:06:11,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:11" (1/1) ... [2020-11-28 03:06:11,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:06:11,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:06:11,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:06:11,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:06:11,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:11" (1/1) ... [2020-11-28 03:06:11,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:11" (1/1) ... [2020-11-28 03:06:11,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:11" (1/1) ... [2020-11-28 03:06:11,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:11" (1/1) ... [2020-11-28 03:06:11,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:11" (1/1) ... [2020-11-28 03:06:11,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:11" (1/1) ... [2020-11-28 03:06:11,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:11" (1/1) ... [2020-11-28 03:06:11,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:06:11,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:06:11,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:06:11,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:06:11,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/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 03:06:11,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:06:11,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:06:11,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:06:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:06:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:06:12,172 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:06:12,172 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:06:12,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:12 BoogieIcfgContainer [2020-11-28 03:06:12,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:06:12,175 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:06:12,175 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:06:12,178 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:06:12,179 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:06:12,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:06:11" (1/3) ... [2020-11-28 03:06:12,190 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ed8dc07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:06:12, skipping insertion in model container [2020-11-28 03:06:12,190 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:06:12,191 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:11" (2/3) ... [2020-11-28 03:06:12,191 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ed8dc07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:06:12, skipping insertion in model container [2020-11-28 03:06:12,191 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:06:12,191 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:12" (3/3) ... [2020-11-28 03:06:12,193 INFO L373 chiAutomizerObserver]: Analyzing ICFG SyntaxSupportPointer01-2.c [2020-11-28 03:06:12,274 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:06:12,275 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:06:12,275 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:06:12,275 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:06:12,275 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:06:12,275 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:06:12,275 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:06:12,275 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:06:12,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-28 03:06:12,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:06:12,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:06:12,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:06:12,328 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:06:12,328 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:06:12,328 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:06:12,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-28 03:06:12,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:06:12,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:06:12,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:06:12,331 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:06:12,331 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:06:12,340 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~nondet1, main_#t~mem3, main_#t~post4, main_#t~mem2, main_~p~0.base, main_~p~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnHeap(4);main_~p~0.base, main_~p~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call write~int(main_#t~nondet1, main_~p~0.base, main_~p~0.offset, 4);havoc main_#t~nondet1; 6#L15-3true [2020-11-28 03:06:12,341 INFO L796 eck$LassoCheckResult]: Loop: 6#L15-3true call main_#t~mem2 := read~int(main_~p~0.base, main_~p~0.offset, 4); 10#L15-1true assume !!(main_#t~mem2 >= 0);havoc main_#t~mem2;call main_#t~mem3 := read~int(main_~p~0.base, main_~p~0.offset, 4);main_#t~post4 := main_#t~mem3;call write~int(main_#t~post4 - 1, main_~p~0.base, main_~p~0.offset, 4);havoc main_#t~mem3;havoc main_#t~post4; 6#L15-3true [2020-11-28 03:06:12,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:12,352 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-28 03:06:12,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:06:12,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936118691] [2020-11-28 03:06:12,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:06:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:06:12,475 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:06:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:06:12,503 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:06:12,527 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:06:12,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:12,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2020-11-28 03:06:12,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:06:12,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141187289] [2020-11-28 03:06:12,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:06:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:06:12,559 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:06:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:06:12,568 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:06:12,573 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:06:12,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:12,587 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2020-11-28 03:06:12,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:06:12,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345406155] [2020-11-28 03:06:12,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:06:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:06:12,603 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:06:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:06:12,626 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:06:12,633 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:06:12,863 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-11-28 03:06:12,935 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:06:12,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:06:12,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:06:12,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:06:12,936 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:06:12,937 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:06:12,937 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:06:12,937 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:06:12,937 INFO L133 ssoRankerPreferences]: Filename of dumped script: SyntaxSupportPointer01-2.c_Iteration1_Lasso [2020-11-28 03:06:12,937 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:06:12,937 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:06:12,958 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 03:06:12,968 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 03:06:12,971 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 03:06:12,982 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 03:06:13,119 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 03:06:13,124 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 03:06:13,129 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 03:06:13,148 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 03:06:13,426 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:06:13,431 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/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 03:06:13,446 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 03:06:13,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:06:13,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:06:13,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:06:13,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:06:13,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:06:13,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:06:13,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:06:13,456 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/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) [2020-11-28 03:06:13,498 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 03:06:13,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:06:13,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:06:13,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:06:13,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:06:13,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:06:13,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:06:13,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:06:13,505 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/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 03:06:13,547 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 03:06:13,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:06:13,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:06:13,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:06:13,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:06:13,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:06:13,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:06:13,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:06:13,554 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/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) [2020-11-28 03:06:13,595 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 03:06:13,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:06:13,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:06:13,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:06:13,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:06:13,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:06:13,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:06:13,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/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 03:06:13,650 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 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:06:13,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:06:13,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:06:13,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:06:13,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:06:13,659 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:06:13,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:06:13,666 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/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 03:06:13,710 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 03:06:13,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:06:13,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:06:13,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:06:13,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:06:13,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:06:13,717 INFO L402 nArgumentSynthesizer]: A total of 2 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 03:06:13,723 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:06:13,736 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-28 03:06:13,736 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e6833b1-6bb5-426f-84af-6a193e854e59/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) [2020-11-28 03:06:13,744 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:06:13,747 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:06:13,748 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:06:13,748 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~p~0.base) ULTIMATE.start_main_~p~0.offset)_1) = 2*v_rep(select (select #memory_int ULTIMATE.start_main_~p~0.base) ULTIMATE.start_main_~p~0.offset)_1 + 1 Supporting invariants [] [2020-11-28 03:06:13,792 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-11-28 03:06:13,799 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:06:13,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:13,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:06:13,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:06:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:13,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:06:13,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:06:13,918 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 03:06:13,935 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:06:13,936 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-11-28 03:06:13,984 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 18 states and 20 transitions. Complement of second has 7 states. [2020-11-28 03:06:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:06:13,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:06:13,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-11-28 03:06:13,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-28 03:06:13,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:06:13,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-28 03:06:13,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:06:13,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-28 03:06:13,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:06:13,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 20 transitions. [2020-11-28 03:06:13,993 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:06:13,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2020-11-28 03:06:13,996 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:06:13,996 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:06:13,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:06:13,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:06:13,997 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:06:13,997 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:06:13,997 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:06:13,997 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:06:13,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:06:13,998 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:06:13,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:06:14,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:06:14 BoogieIcfgContainer [2020-11-28 03:06:14,003 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:06:14,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:06:14,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:06:14,004 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:06:14,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:12" (3/4) ... [2020-11-28 03:06:14,007 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:06:14,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:06:14,009 INFO L168 Benchmark]: Toolchain (without parser) took 2462.15 ms. Allocated memory was 90.2 MB in the beginning and 127.9 MB in the end (delta: 37.7 MB). Free memory was 62.9 MB in the beginning and 93.5 MB in the end (delta: -30.6 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:14,010 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory was 47.0 MB in the beginning and 47.0 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:06:14,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.40 ms. Allocated memory is still 90.2 MB. Free memory was 62.7 MB in the beginning and 69.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:14,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.16 ms. Allocated memory is still 90.2 MB. Free memory was 69.0 MB in the beginning and 67.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:06:14,011 INFO L168 Benchmark]: Boogie Preprocessor took 19.92 ms. Allocated memory is still 90.2 MB. Free memory was 67.7 MB in the beginning and 66.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:14,012 INFO L168 Benchmark]: RCFGBuilder took 335.70 ms. Allocated memory is still 90.2 MB. Free memory was 66.6 MB in the beginning and 57.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:14,013 INFO L168 Benchmark]: BuchiAutomizer took 1828.44 ms. Allocated memory was 90.2 MB in the beginning and 127.9 MB in the end (delta: 37.7 MB). Free memory was 56.8 MB in the beginning and 93.9 MB in the end (delta: -37.1 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:14,013 INFO L168 Benchmark]: Witness Printer took 3.79 ms. Allocated memory is still 127.9 MB. Free memory was 93.9 MB in the beginning and 93.5 MB in the end (delta: 341.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:06:14,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory was 47.0 MB in the beginning and 47.0 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 238.40 ms. Allocated memory is still 90.2 MB. Free memory was 62.7 MB in the beginning and 69.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.16 ms. Allocated memory is still 90.2 MB. Free memory was 69.0 MB in the beginning and 67.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.92 ms. Allocated memory is still 90.2 MB. Free memory was 67.7 MB in the beginning and 66.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 335.70 ms. Allocated memory is still 90.2 MB. Free memory was 66.6 MB in the beginning and 57.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1828.44 ms. Allocated memory was 90.2 MB in the beginning and 127.9 MB in the end (delta: 37.7 MB). Free memory was 56.8 MB in the beginning and 93.9 MB in the end (delta: -37.1 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.79 ms. Allocated memory is still 127.9 MB. Free memory was 93.9 MB in the beginning and 93.5 MB in the end (delta: 341.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * unknown-#memory_int-unknown[p][p] + 1 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 5 SDslu, 6 SDs, 0 SdLazy, 6 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital100 mio100 ax100 hnf100 lsp93 ukn71 mio100 lsp37 div100 bol100 ite100 ukn100 eq179 hnf88 smp100 dnf104 smp95 tf100 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...