./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 870a7e5617be5a547f8d530603b5c27ad6cbb74bb05a83654285fee7bbb92753 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:25:04,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:25:04,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:25:05,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:25:05,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:25:05,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:25:05,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:25:05,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:25:05,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:25:05,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:25:05,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:25:05,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:25:05,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:25:05,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:25:05,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:25:05,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:25:05,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:25:05,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:25:05,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:25:05,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:25:05,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:25:05,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:25:05,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:25:05,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:25:05,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:25:05,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:25:05,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:25:05,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:25:05,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:25:05,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:25:05,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:25:05,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:25:05,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:25:05,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:25:05,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:25:05,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:25:05,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:25:05,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:25:05,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:25:05,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:25:05,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:25:05,082 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:25:05,111 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:25:05,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:25:05,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:25:05,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:25:05,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:25:05,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:25:05,114 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:25:05,114 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:25:05,114 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:25:05,114 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:25:05,115 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:25:05,115 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:25:05,115 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:25:05,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:25:05,116 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:25:05,116 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:25:05,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:25:05,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:25:05,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:25:05,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:25:05,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:25:05,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:25:05,117 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:25:05,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:25:05,119 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:25:05,119 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:25:05,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:25:05,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:25:05,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:25:05,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:25:05,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:25:05,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:25:05,121 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:25:05,121 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 870a7e5617be5a547f8d530603b5c27ad6cbb74bb05a83654285fee7bbb92753 [2021-12-15 17:25:05,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:25:05,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:25:05,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:25:05,357 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:25:05,357 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:25:05,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i [2021-12-15 17:25:05,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bb37640/e803812d3bbb4d8b87e5f04a5e2ebcbe/FLAGcbad48ea7 [2021-12-15 17:25:05,816 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:25:05,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/add_last-alloca-1.i [2021-12-15 17:25:05,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bb37640/e803812d3bbb4d8b87e5f04a5e2ebcbe/FLAGcbad48ea7 [2021-12-15 17:25:05,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bb37640/e803812d3bbb4d8b87e5f04a5e2ebcbe [2021-12-15 17:25:05,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:25:05,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:25:05,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:25:05,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:25:05,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:25:05,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:25:05" (1/1) ... [2021-12-15 17:25:05,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fc1cc8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:05, skipping insertion in model container [2021-12-15 17:25:05,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:25:05" (1/1) ... [2021-12-15 17:25:05,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:25:05,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:25:06,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:25:06,119 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:25:06,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:25:06,191 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:25:06,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:06 WrapperNode [2021-12-15 17:25:06,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:25:06,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:25:06,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:25:06,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:25:06,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:06" (1/1) ... [2021-12-15 17:25:06,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:06" (1/1) ... [2021-12-15 17:25:06,243 INFO L137 Inliner]: procedures = 115, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2021-12-15 17:25:06,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:25:06,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:25:06,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:25:06,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:25:06,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:06" (1/1) ... [2021-12-15 17:25:06,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:06" (1/1) ... [2021-12-15 17:25:06,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:06" (1/1) ... [2021-12-15 17:25:06,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:06" (1/1) ... [2021-12-15 17:25:06,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:06" (1/1) ... [2021-12-15 17:25:06,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:06" (1/1) ... [2021-12-15 17:25:06,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:06" (1/1) ... [2021-12-15 17:25:06,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:25:06,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:25:06,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:25:06,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:25:06,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:06" (1/1) ... [2021-12-15 17:25:06,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:06,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:06,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:06,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-15 17:25:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 17:25:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 17:25:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 17:25:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 17:25:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:25:06,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:25:06,457 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:25:06,459 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:25:06,545 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:25:06,550 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:25:06,551 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 17:25:06,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:25:06 BoogieIcfgContainer [2021-12-15 17:25:06,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:25:06,553 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:25:06,553 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:25:06,556 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:25:06,557 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:25:06,557 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:25:05" (1/3) ... [2021-12-15 17:25:06,558 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28f892ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:25:06, skipping insertion in model container [2021-12-15 17:25:06,558 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:25:06,558 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:25:06" (2/3) ... [2021-12-15 17:25:06,558 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28f892ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:25:06, skipping insertion in model container [2021-12-15 17:25:06,559 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:25:06,559 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:25:06" (3/3) ... [2021-12-15 17:25:06,560 INFO L388 chiAutomizerObserver]: Analyzing ICFG add_last-alloca-1.i [2021-12-15 17:25:06,593 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:25:06,593 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:25:06,594 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:25:06,594 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:25:06,594 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:25:06,594 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:25:06,594 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:25:06,594 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:25:06,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:25:06,619 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-15 17:25:06,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:06,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:06,640 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-15 17:25:06,640 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:25:06,640 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:25:06,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:25:06,642 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-15 17:25:06,642 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:06,642 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:06,642 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-15 17:25:06,643 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:25:06,648 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_~k~0#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~post10#1.base, main_#t~post10#1.offset, main_#t~mem6#1, main_#t~mem7#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 11#L515true assume !(main_~length~0#1 < 1 || main_~length~0#1 % 4294967296 >= 536870911); 8#L515-2true call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 14#L517true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~a~0#1.base, main_~a~0#1.offset := main_~arr~0#1.base, main_~arr~0#1.offset;main_~k~0#1 := 0; 6#L520-3true [2021-12-15 17:25:06,663 INFO L793 eck$LassoCheckResult]: Loop: 6#L520-3true assume !!(main_~k~0#1 < main_~length~0#1);call write~int(main_#t~nondet5#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~k~0#1, 4);havoc main_#t~nondet5#1; 12#L520-2true main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 6#L520-3true [2021-12-15 17:25:06,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:06,669 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-12-15 17:25:06,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:06,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961914375] [2021-12-15 17:25:06,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:06,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:06,810 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:06,855 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:06,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:06,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2021-12-15 17:25:06,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:06,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976262459] [2021-12-15 17:25:06,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:06,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:06,881 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:06,898 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:06,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:06,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2021-12-15 17:25:06,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:06,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345585120] [2021-12-15 17:25:06,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:06,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:06,940 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:06,954 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:07,322 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:25:07,324 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:25:07,324 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:25:07,324 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:25:07,324 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:25:07,325 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:07,325 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:25:07,325 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:25:07,325 INFO L133 ssoRankerPreferences]: Filename of dumped script: add_last-alloca-1.i_Iteration1_Lasso [2021-12-15 17:25:07,325 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:25:07,325 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:25:07,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:07,805 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:25:07,810 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:25:07,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:07,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:07,815 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:07,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:07,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-15 17:25:07,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:07,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:07,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:07,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:07,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:07,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:07,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:07,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:07,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:07,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:07,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:07,882 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:07,892 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:07,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:07,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:07,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:07,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:07,906 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:07,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:07,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-15 17:25:07,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:07,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:07,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:07,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:07,949 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:07,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-15 17:25:07,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:07,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:07,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:07,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:07,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:07,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:07,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:07,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:08,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:08,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:08,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:08,009 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:08,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-15 17:25:08,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:08,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:08,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:08,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:08,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:08,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:08,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:08,059 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:25:08,096 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-12-15 17:25:08,096 INFO L444 ModelExtractionUtils]: 7 out of 25 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-12-15 17:25:08,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:08,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:08,123 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:08,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-15 17:25:08,184 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:25:08,210 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:25:08,210 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:25:08,211 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length~0#1, ULTIMATE.start_main_~k~0#1) = 1*ULTIMATE.start_main_~length~0#1 - 1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2021-12-15 17:25:08,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:08,244 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-12-15 17:25:08,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:08,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 17:25:08,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:08,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 17:25:08,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:08,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:08,358 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-15 17:25:08,359 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:25:08,403 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 41 transitions. Complement of second has 7 states. [2021-12-15 17:25:08,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-15 17:25:08,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:25:08,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2021-12-15 17:25:08,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-15 17:25:08,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:08,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-15 17:25:08,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:08,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-15 17:25:08,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:08,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 41 transitions. [2021-12-15 17:25:08,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:25:08,431 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 11 states and 14 transitions. [2021-12-15 17:25:08,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-15 17:25:08,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-15 17:25:08,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2021-12-15 17:25:08,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:25:08,433 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-12-15 17:25:08,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2021-12-15 17:25:08,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-12-15 17:25:08,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:25:08,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-12-15 17:25:08,452 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-15 17:25:08,452 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-15 17:25:08,452 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:25:08,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-12-15 17:25:08,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:25:08,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:08,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:08,454 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-15 17:25:08,454 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:25:08,454 INFO L791 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 107#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_~k~0#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~post10#1.base, main_#t~post10#1.offset, main_#t~mem6#1, main_#t~mem7#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 113#L515 assume !(main_~length~0#1 < 1 || main_~length~0#1 % 4294967296 >= 536870911); 111#L515-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 112#L517 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~a~0#1.base, main_~a~0#1.offset := main_~arr~0#1.base, main_~arr~0#1.offset;main_~k~0#1 := 0; 108#L520-3 assume !(main_~k~0#1 < main_~length~0#1); 105#L525-2 [2021-12-15 17:25:08,454 INFO L793 eck$LassoCheckResult]: Loop: 105#L525-2 call main_#t~mem6#1 := read~int(main_~a~0#1.base, main_~a~0#1.offset, 4);call main_#t~mem7#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~length~0#1 - 4, 4); 104#L525 assume !!(main_#t~mem6#1 != main_#t~mem7#1);havoc main_#t~mem6#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~a~0#1.base, main_~a~0#1.offset, 4);call main_#t~mem9#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~length~0#1 - 4, 4);call write~int(main_#t~mem8#1 + main_#t~mem9#1, main_~a~0#1.base, main_~a~0#1.offset, 4);havoc main_#t~mem8#1;havoc main_#t~mem9#1;main_#t~post10#1.base, main_#t~post10#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~a~0#1.base, main_~a~0#1.offset := main_#t~post10#1.base, 4 + main_#t~post10#1.offset;havoc main_#t~post10#1.base, main_#t~post10#1.offset; 105#L525-2 [2021-12-15 17:25:08,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:08,455 INFO L85 PathProgramCache]: Analyzing trace with hash 889568363, now seen corresponding path program 1 times [2021-12-15 17:25:08,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:08,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198783699] [2021-12-15 17:25:08,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:08,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:08,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:08,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:25:08,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198783699] [2021-12-15 17:25:08,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198783699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:25:08,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:25:08,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:25:08,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166139869] [2021-12-15 17:25:08,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:25:08,501 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:25:08,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:08,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 1 times [2021-12-15 17:25:08,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:08,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892960182] [2021-12-15 17:25:08,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:08,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:08,511 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:08,517 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:08,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:25:08,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 17:25:08,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 17:25:08,605 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:25:08,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:25:08,626 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-12-15 17:25:08,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 17:25:08,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-12-15 17:25:08,628 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:25:08,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 13 transitions. [2021-12-15 17:25:08,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-15 17:25:08,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-15 17:25:08,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-12-15 17:25:08,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:25:08,629 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-15 17:25:08,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-12-15 17:25:08,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-12-15 17:25:08,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:25:08,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-12-15 17:25:08,631 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-12-15 17:25:08,631 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-12-15 17:25:08,631 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:25:08,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2021-12-15 17:25:08,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:25:08,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:08,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:08,632 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:08,632 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:25:08,633 INFO L791 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 135#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_~k~0#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~post10#1.base, main_#t~post10#1.offset, main_#t~mem6#1, main_#t~mem7#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 141#L515 assume !(main_~length~0#1 < 1 || main_~length~0#1 % 4294967296 >= 536870911); 139#L515-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 140#L517 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~a~0#1.base, main_~a~0#1.offset := main_~arr~0#1.base, main_~arr~0#1.offset;main_~k~0#1 := 0; 136#L520-3 assume !!(main_~k~0#1 < main_~length~0#1);call write~int(main_#t~nondet5#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~k~0#1, 4);havoc main_#t~nondet5#1; 137#L520-2 main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 138#L520-3 assume !(main_~k~0#1 < main_~length~0#1); 133#L525-2 [2021-12-15 17:25:08,633 INFO L793 eck$LassoCheckResult]: Loop: 133#L525-2 call main_#t~mem6#1 := read~int(main_~a~0#1.base, main_~a~0#1.offset, 4);call main_#t~mem7#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~length~0#1 - 4, 4); 132#L525 assume !!(main_#t~mem6#1 != main_#t~mem7#1);havoc main_#t~mem6#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~a~0#1.base, main_~a~0#1.offset, 4);call main_#t~mem9#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~length~0#1 - 4, 4);call write~int(main_#t~mem8#1 + main_#t~mem9#1, main_~a~0#1.base, main_~a~0#1.offset, 4);havoc main_#t~mem8#1;havoc main_#t~mem9#1;main_#t~post10#1.base, main_#t~post10#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~a~0#1.base, main_~a~0#1.offset := main_#t~post10#1.base, 4 + main_#t~post10#1.offset;havoc main_#t~post10#1.base, main_#t~post10#1.offset; 133#L525-2 [2021-12-15 17:25:08,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:08,633 INFO L85 PathProgramCache]: Analyzing trace with hash 176707625, now seen corresponding path program 1 times [2021-12-15 17:25:08,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:08,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703592948] [2021-12-15 17:25:08,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:08,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:08,662 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:08,678 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:08,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:08,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 2 times [2021-12-15 17:25:08,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:08,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461204843] [2021-12-15 17:25:08,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:08,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:08,692 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:08,702 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:08,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:08,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1982663218, now seen corresponding path program 1 times [2021-12-15 17:25:08,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:08,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368530175] [2021-12-15 17:25:08,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:08,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:08,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:09,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:09,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:25:09,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368530175] [2021-12-15 17:25:09,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368530175] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 17:25:09,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006193623] [2021-12-15 17:25:09,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:09,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 17:25:09,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:09,044 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 17:25:09,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-15 17:25:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:09,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-15 17:25:09,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:09,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-15 17:25:09,270 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-15 17:25:09,272 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 17:25:09,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2021-12-15 17:25:09,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:09,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 17:25:09,344 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 17:25:09,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 70 [2021-12-15 17:25:09,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2021-12-15 17:25:09,443 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 17:25:09,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 101 [2021-12-15 17:25:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:09,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006193623] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 17:25:09,512 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 17:25:09,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 16 [2021-12-15 17:25:09,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831926737] [2021-12-15 17:25:09,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 17:25:09,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:25:09,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-15 17:25:09,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2021-12-15 17:25:09,581 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:25:09,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:25:09,689 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-12-15 17:25:09,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-15 17:25:09,690 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2021-12-15 17:25:09,691 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:25:09,691 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 15 transitions. [2021-12-15 17:25:09,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-15 17:25:09,692 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-15 17:25:09,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2021-12-15 17:25:09,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:25:09,692 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-12-15 17:25:09,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2021-12-15 17:25:09,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-12-15 17:25:09,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:25:09,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-12-15 17:25:09,693 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-12-15 17:25:09,693 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-12-15 17:25:09,693 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-15 17:25:09,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2021-12-15 17:25:09,694 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:25:09,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:25:09,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:25:09,694 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-12-15 17:25:09,694 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:25:09,695 INFO L791 eck$LassoCheckResult]: Stem: 241#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 242#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_~k~0#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~post10#1.base, main_#t~post10#1.offset, main_#t~mem6#1, main_#t~mem7#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~a~0#1.base, main_~a~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 249#L515 assume !(main_~length~0#1 < 1 || main_~length~0#1 % 4294967296 >= 536870911); 247#L515-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 248#L517 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~a~0#1.base, main_~a~0#1.offset := main_~arr~0#1.base, main_~arr~0#1.offset;main_~k~0#1 := 0; 243#L520-3 assume !!(main_~k~0#1 < main_~length~0#1);call write~int(main_#t~nondet5#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~k~0#1, 4);havoc main_#t~nondet5#1; 244#L520-2 main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 245#L520-3 assume !!(main_~k~0#1 < main_~length~0#1);call write~int(main_#t~nondet5#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~k~0#1, 4);havoc main_#t~nondet5#1; 246#L520-2 main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 250#L520-3 assume !(main_~k~0#1 < main_~length~0#1); 240#L525-2 [2021-12-15 17:25:09,695 INFO L793 eck$LassoCheckResult]: Loop: 240#L525-2 call main_#t~mem6#1 := read~int(main_~a~0#1.base, main_~a~0#1.offset, 4);call main_#t~mem7#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~length~0#1 - 4, 4); 239#L525 assume !!(main_#t~mem6#1 != main_#t~mem7#1);havoc main_#t~mem6#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~a~0#1.base, main_~a~0#1.offset, 4);call main_#t~mem9#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~length~0#1 - 4, 4);call write~int(main_#t~mem8#1 + main_#t~mem9#1, main_~a~0#1.base, main_~a~0#1.offset, 4);havoc main_#t~mem8#1;havoc main_#t~mem9#1;main_#t~post10#1.base, main_#t~post10#1.offset := main_~a~0#1.base, main_~a~0#1.offset;main_~a~0#1.base, main_~a~0#1.offset := main_#t~post10#1.base, 4 + main_#t~post10#1.offset;havoc main_#t~post10#1.base, main_#t~post10#1.offset; 240#L525-2 [2021-12-15 17:25:09,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:09,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1982661529, now seen corresponding path program 2 times [2021-12-15 17:25:09,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:09,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052698202] [2021-12-15 17:25:09,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:09,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:09,705 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:09,714 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:09,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:09,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 3 times [2021-12-15 17:25:09,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:09,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882015777] [2021-12-15 17:25:09,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:09,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:09,719 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:09,734 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:09,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:09,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1627751052, now seen corresponding path program 2 times [2021-12-15 17:25:09,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:25:09,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726427566] [2021-12-15 17:25:09,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:25:09,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:25:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:09,747 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:25:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:25:09,758 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:25:10,038 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:25:10,038 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:25:10,038 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:25:10,038 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:25:10,038 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:25:10,038 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:10,038 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:25:10,038 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:25:10,038 INFO L133 ssoRankerPreferences]: Filename of dumped script: add_last-alloca-1.i_Iteration4_Lasso [2021-12-15 17:25:10,038 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:25:10,038 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:25:10,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:25:10,602 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:25:10,602 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:25:10,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:10,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:10,603 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:10,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-15 17:25:10,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:10,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:10,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:10,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:10,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:10,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:10,612 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:10,612 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:10,613 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:10,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:10,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:10,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:10,633 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:10,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-15 17:25:10,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:10,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:10,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:10,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:10,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:10,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:10,640 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:10,640 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:10,641 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:10,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:10,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:10,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:10,657 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:10,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-15 17:25:10,660 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:10,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:10,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:10,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:10,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:10,667 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:10,667 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:10,679 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:10,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:10,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:10,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:10,739 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:10,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:10,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-15 17:25:10,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:10,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:10,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:10,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:10,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:10,748 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:10,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:10,763 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:10,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:10,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:10,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:10,791 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:10,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-15 17:25:10,793 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:10,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:10,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:10,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:10,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:10,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:10,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:10,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:10,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:10,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:10,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:10,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:10,831 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:10,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-15 17:25:10,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:10,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:10,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:10,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:10,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:10,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:10,840 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:10,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:10,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:10,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:10,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:10,877 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:10,882 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:10,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:10,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:10,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:10,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:10,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:10,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:10,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:10,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-15 17:25:10,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:10,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:10,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:10,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:10,925 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:10,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-15 17:25:10,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:10,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:10,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:10,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:10,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:10,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:10,940 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:10,940 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:10,940 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:10,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:10,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:10,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:10,957 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:10,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-15 17:25:10,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:10,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:10,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:10,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:10,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:10,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:10,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:10,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:10,966 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:10,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:10,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:10,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:10,984 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:10,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-15 17:25:10,986 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:10,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:10,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:10,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:10,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:10,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:10,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:10,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:10,992 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:11,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-15 17:25:11,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:11,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:11,008 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:11,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-15 17:25:11,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:11,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:11,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:11,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:11,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:11,017 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:11,017 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:11,019 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:11,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-15 17:25:11,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:11,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:11,036 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:11,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-15 17:25:11,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:11,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:11,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:25:11,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:11,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:11,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:11,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:25:11,053 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:25:11,053 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:11,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:11,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:11,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:11,071 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:11,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-15 17:25:11,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:11,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:11,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:11,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:11,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:11,086 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:11,086 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:11,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:25:11,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-15 17:25:11,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:11,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:11,127 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:11,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-15 17:25:11,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:25:11,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:25:11,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:25:11,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:25:11,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:25:11,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:25:11,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:25:11,163 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:25:11,206 INFO L443 ModelExtractionUtils]: Simplification made 28 calls to the SMT solver. [2021-12-15 17:25:11,206 INFO L444 ModelExtractionUtils]: 4 out of 28 variables were initially zero. Simplification set additionally 21 variables to zero. [2021-12-15 17:25:11,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:25:11,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:25:11,207 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:25:11,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-15 17:25:11,212 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:25:11,218 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:25:11,218 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:25:11,218 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc3#1.base)_2) = -1*ULTIMATE.start_main_~a~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc3#1.base)_2 Supporting invariants [] [2021-12-15 17:25:11,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:11,258 INFO L297 tatePredicateManager]: 7 out of 9 supporting invariants were superfluous and have been removed [2021-12-15 17:25:11,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:25:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:11,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-15 17:25:11,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:25:11,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 17:25:11,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:25:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:25:11,376 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-12-15 17:25:11,376 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:25:11,400 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 17 transitions. Complement of second has 6 states. [2021-12-15 17:25:11,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-15 17:25:11,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:25:11,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-12-15 17:25:11,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-12-15 17:25:11,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:11,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 12 letters. Loop has 2 letters. [2021-12-15 17:25:11,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:11,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2021-12-15 17:25:11,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:25:11,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2021-12-15 17:25:11,403 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-15 17:25:11,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-12-15 17:25:11,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-15 17:25:11,403 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-15 17:25:11,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-15 17:25:11,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:25:11,403 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:25:11,403 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:25:11,403 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:25:11,403 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-15 17:25:11,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-15 17:25:11,404 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-15 17:25:11,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-15 17:25:11,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.12 05:25:11 BoogieIcfgContainer [2021-12-15 17:25:11,409 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-15 17:25:11,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 17:25:11,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 17:25:11,410 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 17:25:11,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:25:06" (3/4) ... [2021-12-15 17:25:11,412 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 17:25:11,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 17:25:11,413 INFO L158 Benchmark]: Toolchain (without parser) took 5572.42ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 42.9MB in the beginning and 32.4MB in the end (delta: 10.6MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2021-12-15 17:25:11,413 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 77.6MB. Free memory was 57.8MB in the beginning and 57.8MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:25:11,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.21ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 42.8MB in the beginning and 65.9MB in the end (delta: -23.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:25:11,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.38ms. Allocated memory is still 94.4MB. Free memory was 65.9MB in the beginning and 64.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:25:11,414 INFO L158 Benchmark]: Boogie Preprocessor took 46.35ms. Allocated memory is still 94.4MB. Free memory was 64.3MB in the beginning and 62.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:25:11,415 INFO L158 Benchmark]: RCFGBuilder took 261.23ms. Allocated memory is still 94.4MB. Free memory was 62.8MB in the beginning and 52.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 17:25:11,415 INFO L158 Benchmark]: BuchiAutomizer took 4855.73ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 52.8MB in the beginning and 33.4MB in the end (delta: 19.4MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2021-12-15 17:25:11,415 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 113.2MB. Free memory was 33.4MB in the beginning and 32.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:25:11,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 77.6MB. Free memory was 57.8MB in the beginning and 57.8MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.21ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 42.8MB in the beginning and 65.9MB in the end (delta: -23.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.38ms. Allocated memory is still 94.4MB. Free memory was 65.9MB in the beginning and 64.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.35ms. Allocated memory is still 94.4MB. Free memory was 64.3MB in the beginning and 62.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 261.23ms. Allocated memory is still 94.4MB. Free memory was 62.8MB in the beginning and 52.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4855.73ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 52.8MB in the beginning and 33.4MB in the end (delta: 19.4MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 113.2MB. Free memory was 33.4MB in the beginning and 32.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length + -1 * k and consists of 5 locations. One deterministic module has affine ranking function -1 * a + unknown-#length-unknown[__builtin_alloca (length*sizeof(int))] and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 29 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital147 mio100 ax113 hnf99 lsp84 ukn88 mio100 lsp58 div133 bol100 ite100 ukn100 eq160 hnf81 smp95 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 4 VariablesLoop: 2 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! [2021-12-15 17:25:11,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-15 17:25:11,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-15 17:25:11,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE