./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstrcpy-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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/openbsd_cstrcpy-alloca-2.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 4b6873ae1a0d665798beb3dd9c0c48e89806da7dd46f1d2066800a52e0a2aa51 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:50:04,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:50:04,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:50:04,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:50:04,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:50:04,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:50:04,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:50:04,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:50:04,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:50:04,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:50:04,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:50:04,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:50:04,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:50:04,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:50:04,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:50:04,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:50:04,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:50:04,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:50:04,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:50:04,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:50:04,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:50:04,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:50:04,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:50:04,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:50:04,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:50:04,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:50:04,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:50:04,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:50:04,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:50:04,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:50:04,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:50:04,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:50:04,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:50:04,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:50:04,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:50:04,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:50:04,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:50:04,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:50:04,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:50:04,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:50:04,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:50:04,782 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:50:04,802 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:50:04,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:50:04,811 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:50:04,811 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:50:04,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:50:04,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:50:04,813 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:50:04,813 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:50:04,813 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:50:04,813 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:50:04,814 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:50:04,814 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:50:04,814 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:50:04,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:50:04,814 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:50:04,814 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:50:04,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:50:04,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:50:04,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:50:04,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:50:04,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:50:04,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:50:04,815 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:50:04,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:50:04,817 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:50:04,817 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:50:04,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:50:04,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:50:04,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:50:04,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:50:04,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:50:04,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:50:04,818 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:50:04,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b6873ae1a0d665798beb3dd9c0c48e89806da7dd46f1d2066800a52e0a2aa51 [2021-12-21 22:50:05,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:50:05,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:50:05,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:50:05,043 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:50:05,044 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:50:05,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrcpy-alloca-2.i [2021-12-21 22:50:05,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7581baa/9caf46dfe7d142b7b1a44e8383a20caf/FLAG8d2a21d16 [2021-12-21 22:50:05,486 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:50:05,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrcpy-alloca-2.i [2021-12-21 22:50:05,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7581baa/9caf46dfe7d142b7b1a44e8383a20caf/FLAG8d2a21d16 [2021-12-21 22:50:05,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7581baa/9caf46dfe7d142b7b1a44e8383a20caf [2021-12-21 22:50:05,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:50:05,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:50:05,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:50:05,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:50:05,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:50:05,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:50:05" (1/1) ... [2021-12-21 22:50:05,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc4fcf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:05, skipping insertion in model container [2021-12-21 22:50:05,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:50:05" (1/1) ... [2021-12-21 22:50:05,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:50:05,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:50:06,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:50:06,181 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:50:06,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:50:06,221 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:50:06,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:06 WrapperNode [2021-12-21 22:50:06,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:50:06,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:50:06,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:50:06,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:50:06,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:06" (1/1) ... [2021-12-21 22:50:06,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:06" (1/1) ... [2021-12-21 22:50:06,258 INFO L137 Inliner]: procedures = 117, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2021-12-21 22:50:06,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:50:06,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:50:06,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:50:06,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:50:06,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:06" (1/1) ... [2021-12-21 22:50:06,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:06" (1/1) ... [2021-12-21 22:50:06,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:06" (1/1) ... [2021-12-21 22:50:06,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:06" (1/1) ... [2021-12-21 22:50:06,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:06" (1/1) ... [2021-12-21 22:50:06,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:06" (1/1) ... [2021-12-21 22:50:06,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:06" (1/1) ... [2021-12-21 22:50:06,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:50:06,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:50:06,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:50:06,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:50:06,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:06" (1/1) ... [2021-12-21 22:50:06,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:06,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:06,322 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) [2021-12-21 22:50:06,324 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 [2021-12-21 22:50:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 22:50:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 22:50:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 22:50:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 22:50:06,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:50:06,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:50:06,430 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:50:06,431 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:50:06,605 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:50:06,609 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:50:06,610 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:50:06,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:50:06 BoogieIcfgContainer [2021-12-21 22:50:06,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:50:06,612 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:50:06,612 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:50:06,630 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:50:06,630 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:50:06,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:50:05" (1/3) ... [2021-12-21 22:50:06,638 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ab4d24a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:50:06, skipping insertion in model container [2021-12-21 22:50:06,638 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:50:06,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:06" (2/3) ... [2021-12-21 22:50:06,639 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ab4d24a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:50:06, skipping insertion in model container [2021-12-21 22:50:06,639 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:50:06,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:50:06" (3/3) ... [2021-12-21 22:50:06,640 INFO L388 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrcpy-alloca-2.i [2021-12-21 22:50:06,715 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:50:06,715 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:50:06,715 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:50:06,716 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:50:06,716 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:50:06,716 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:50:06,716 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:50:06,716 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:50:06,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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) [2021-12-21 22:50:06,742 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-21 22:50:06,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:50:06,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:50:06,747 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-21 22:50:06,747 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 22:50:06,747 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:50:06,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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) [2021-12-21 22:50:06,749 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-12-21 22:50:06,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:50:06,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:50:06,751 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-21 22:50:06,751 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 22:50:06,756 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; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length1~0#1, main_~length2~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~length2~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 11#L523true assume !(main_~length1~0#1 < 1); 12#L523-2true assume !(main_~length2~0#1 < 1); 13#L526-1true assume !(main_~length1~0#1 < main_~length2~0#1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 3#L534-3true [2021-12-21 22:50:06,756 INFO L793 eck$LassoCheckResult]: Loop: 3#L534-3true assume !!(main_~i~0#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet10#1, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet10#1; 10#L534-2true main_#t~post9#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 3#L534-3true [2021-12-21 22:50:06,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:06,764 INFO L85 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2021-12-21 22:50:06,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:06,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193663222] [2021-12-21 22:50:06,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:06,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:06,868 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:06,905 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:06,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:06,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1827, now seen corresponding path program 1 times [2021-12-21 22:50:06,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:06,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985905665] [2021-12-21 22:50:06,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:06,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:06,928 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:06,944 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:06,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:06,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1806939692, now seen corresponding path program 1 times [2021-12-21 22:50:06,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:06,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107929670] [2021-12-21 22:50:06,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:06,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:06,982 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:06,994 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:07,308 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:50:07,308 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:50:07,309 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:50:07,309 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:50:07,309 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:50:07,309 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:07,309 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:50:07,310 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:50:07,310 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcpy-alloca-2.i_Iteration1_Lasso [2021-12-21 22:50:07,310 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:50:07,310 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:50:07,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:07,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:07,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:07,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:07,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:07,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:07,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:07,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:07,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:07,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:07,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:07,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:07,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:07,716 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:50:07,719 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:50:07,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:07,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:07,724 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) [2021-12-21 22:50:07,725 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 [2021-12-21 22:50:07,728 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 [2021-12-21 22:50:07,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:07,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:07,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:07,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:07,743 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:07,744 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:07,760 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:50:07,812 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-12-21 22:50:07,812 INFO L444 ModelExtractionUtils]: 8 out of 28 variables were initially zero. Simplification set additionally 14 variables to zero. [2021-12-21 22:50:07,813 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:07,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:07,828 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) [2021-12-21 22:50:07,863 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:50:07,872 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 [2021-12-21 22:50:07,882 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-21 22:50:07,883 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:50:07,884 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~length1~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_~nondetString~0#1.base)_1 + 1*ULTIMATE.start_main_~length1~0#1 + 1*ULTIMATE.start_main_~nondetString~0#1.offset >= 0] [2021-12-21 22:50:07,900 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 [2021-12-21 22:50:07,928 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2021-12-21 22:50:07,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:50:07,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-21 22:50:07,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:50:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:50:07,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-21 22:50:07,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:50:08,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:50:08,030 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 [2021-12-21 22:50:08,031 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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) 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) [2021-12-21 22:50:08,075 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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). 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 39 states and 50 transitions. Complement of second has 7 states. [2021-12-21 22:50:08,077 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 [2021-12-21 22:50:08,080 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) [2021-12-21 22:50:08,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2021-12-21 22:50:08,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-21 22:50:08,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:08,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-21 22:50:08,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:08,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-21 22:50:08,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:08,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 50 transitions. [2021-12-21 22:50:08,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-21 22:50:08,086 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 12 states and 16 transitions. [2021-12-21 22:50:08,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-21 22:50:08,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-21 22:50:08,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-12-21 22:50:08,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:50:08,088 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-21 22:50:08,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-12-21 22:50:08,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-21 22:50:08,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 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) [2021-12-21 22:50:08,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-12-21 22:50:08,103 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-21 22:50:08,103 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-21 22:50:08,103 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:50:08,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-12-21 22:50:08,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-21 22:50:08,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:50:08,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:50:08,104 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:50:08,104 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-21 22:50:08,104 INFO L791 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 141#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length1~0#1, main_~length2~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~length2~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 142#L523 assume !(main_~length1~0#1 < 1); 143#L523-2 assume !(main_~length2~0#1 < 1); 144#L526-1 assume !(main_~length1~0#1 < main_~length2~0#1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 136#L534-3 assume !(main_~i~0#1 < main_~length2~0#1 - 1); 137#L534-4 call write~int(0, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcpy } true;cstrcpy_#in~to#1.base, cstrcpy_#in~to#1.offset, cstrcpy_#in~from#1.base, cstrcpy_#in~from#1.offset := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;havoc cstrcpy_#res#1.base, cstrcpy_#res#1.offset;havoc cstrcpy_#t~pre2#1.base, cstrcpy_#t~pre2#1.offset, cstrcpy_#t~pre3#1.base, cstrcpy_#t~pre3#1.offset, cstrcpy_#t~mem4#1, cstrcpy_~to#1.base, cstrcpy_~to#1.offset, cstrcpy_~from#1.base, cstrcpy_~from#1.offset, cstrcpy_~save~0#1.base, cstrcpy_~save~0#1.offset;cstrcpy_~to#1.base, cstrcpy_~to#1.offset := cstrcpy_#in~to#1.base, cstrcpy_#in~to#1.offset;cstrcpy_~from#1.base, cstrcpy_~from#1.offset := cstrcpy_#in~from#1.base, cstrcpy_#in~from#1.offset;cstrcpy_~save~0#1.base, cstrcpy_~save~0#1.offset := cstrcpy_~to#1.base, cstrcpy_~to#1.offset; 145#L517-4 [2021-12-21 22:50:08,104 INFO L793 eck$LassoCheckResult]: Loop: 145#L517-4 call cstrcpy_#t~mem4#1 := read~int(cstrcpy_~from#1.base, cstrcpy_~from#1.offset, 1);call write~int(cstrcpy_#t~mem4#1, cstrcpy_~to#1.base, cstrcpy_~to#1.offset, 1); 146#L517-1 assume !!(0 != cstrcpy_#t~mem4#1);havoc cstrcpy_#t~mem4#1; 147#L517-3 cstrcpy_#t~pre2#1.base, cstrcpy_#t~pre2#1.offset := cstrcpy_~from#1.base, 1 + cstrcpy_~from#1.offset;cstrcpy_~from#1.base, cstrcpy_~from#1.offset := cstrcpy_~from#1.base, 1 + cstrcpy_~from#1.offset;havoc cstrcpy_#t~pre2#1.base, cstrcpy_#t~pre2#1.offset;cstrcpy_#t~pre3#1.base, cstrcpy_#t~pre3#1.offset := cstrcpy_~to#1.base, 1 + cstrcpy_~to#1.offset;cstrcpy_~to#1.base, cstrcpy_~to#1.offset := cstrcpy_~to#1.base, 1 + cstrcpy_~to#1.offset;havoc cstrcpy_#t~pre3#1.base, cstrcpy_#t~pre3#1.offset; 145#L517-4 [2021-12-21 22:50:08,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:08,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1806939634, now seen corresponding path program 1 times [2021-12-21 22:50:08,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:08,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224413047] [2021-12-21 22:50:08,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:08,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:08,118 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:08,127 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:08,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:08,127 INFO L85 PathProgramCache]: Analyzing trace with hash 66694, now seen corresponding path program 1 times [2021-12-21 22:50:08,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:08,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916118144] [2021-12-21 22:50:08,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:08,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:08,154 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:08,158 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:08,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:08,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1713552629, now seen corresponding path program 1 times [2021-12-21 22:50:08,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:08,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830561210] [2021-12-21 22:50:08,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:08,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:08,173 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 [2021-12-21 22:50:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:50:08,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:50:08,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:50:08,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830561210] [2021-12-21 22:50:08,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830561210] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:50:08,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:50:08,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 22:50:08,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953600573] [2021-12-21 22:50:08,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:50:08,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:50:08,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 22:50:08,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 22:50:08,354 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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) [2021-12-21 22:50:08,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:50:08,456 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2021-12-21 22:50:08,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 22:50:08,457 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2021-12-21 22:50:08,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-21 22:50:08,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 13 states and 16 transitions. [2021-12-21 22:50:08,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-21 22:50:08,461 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-21 22:50:08,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2021-12-21 22:50:08,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:50:08,461 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-12-21 22:50:08,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2021-12-21 22:50:08,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-12-21 22:50:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 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) [2021-12-21 22:50:08,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-12-21 22:50:08,463 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-21 22:50:08,463 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-21 22:50:08,463 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:50:08,463 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-12-21 22:50:08,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-21 22:50:08,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:50:08,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:50:08,465 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:50:08,465 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-21 22:50:08,466 INFO L791 eck$LassoCheckResult]: Stem: 185#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 186#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length1~0#1, main_~length2~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~length2~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 187#L523 assume !(main_~length1~0#1 < 1); 188#L523-2 assume !(main_~length2~0#1 < 1); 189#L526-1 assume !(main_~length1~0#1 < main_~length2~0#1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 181#L534-3 assume !!(main_~i~0#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet10#1, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet10#1; 182#L534-2 main_#t~post9#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 183#L534-3 assume !(main_~i~0#1 < main_~length2~0#1 - 1); 184#L534-4 call write~int(0, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcpy } true;cstrcpy_#in~to#1.base, cstrcpy_#in~to#1.offset, cstrcpy_#in~from#1.base, cstrcpy_#in~from#1.offset := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;havoc cstrcpy_#res#1.base, cstrcpy_#res#1.offset;havoc cstrcpy_#t~pre2#1.base, cstrcpy_#t~pre2#1.offset, cstrcpy_#t~pre3#1.base, cstrcpy_#t~pre3#1.offset, cstrcpy_#t~mem4#1, cstrcpy_~to#1.base, cstrcpy_~to#1.offset, cstrcpy_~from#1.base, cstrcpy_~from#1.offset, cstrcpy_~save~0#1.base, cstrcpy_~save~0#1.offset;cstrcpy_~to#1.base, cstrcpy_~to#1.offset := cstrcpy_#in~to#1.base, cstrcpy_#in~to#1.offset;cstrcpy_~from#1.base, cstrcpy_~from#1.offset := cstrcpy_#in~from#1.base, cstrcpy_#in~from#1.offset;cstrcpy_~save~0#1.base, cstrcpy_~save~0#1.offset := cstrcpy_~to#1.base, cstrcpy_~to#1.offset; 190#L517-4 [2021-12-21 22:50:08,466 INFO L793 eck$LassoCheckResult]: Loop: 190#L517-4 call cstrcpy_#t~mem4#1 := read~int(cstrcpy_~from#1.base, cstrcpy_~from#1.offset, 1);call write~int(cstrcpy_#t~mem4#1, cstrcpy_~to#1.base, cstrcpy_~to#1.offset, 1); 191#L517-1 assume !!(0 != cstrcpy_#t~mem4#1);havoc cstrcpy_#t~mem4#1; 192#L517-3 cstrcpy_#t~pre2#1.base, cstrcpy_#t~pre2#1.offset := cstrcpy_~from#1.base, 1 + cstrcpy_~from#1.offset;cstrcpy_~from#1.base, cstrcpy_~from#1.offset := cstrcpy_~from#1.base, 1 + cstrcpy_~from#1.offset;havoc cstrcpy_#t~pre2#1.base, cstrcpy_#t~pre2#1.offset;cstrcpy_#t~pre3#1.base, cstrcpy_#t~pre3#1.offset := cstrcpy_~to#1.base, 1 + cstrcpy_~to#1.offset;cstrcpy_~to#1.base, cstrcpy_~to#1.offset := cstrcpy_~to#1.base, 1 + cstrcpy_~to#1.offset;havoc cstrcpy_#t~pre3#1.base, cstrcpy_#t~pre3#1.offset; 190#L517-4 [2021-12-21 22:50:08,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:08,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1302257236, now seen corresponding path program 1 times [2021-12-21 22:50:08,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:08,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574663708] [2021-12-21 22:50:08,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:08,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:08,491 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:08,499 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:08,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:08,507 INFO L85 PathProgramCache]: Analyzing trace with hash 66694, now seen corresponding path program 2 times [2021-12-21 22:50:08,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:08,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45370203] [2021-12-21 22:50:08,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:08,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:08,518 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:08,521 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:08,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:08,522 INFO L85 PathProgramCache]: Analyzing trace with hash -894230189, now seen corresponding path program 1 times [2021-12-21 22:50:08,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:08,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730522766] [2021-12-21 22:50:08,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:08,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:08,549 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:08,574 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:09,064 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:50:09,064 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:50:09,064 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:50:09,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:50:09,064 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:50:09,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:09,065 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:50:09,065 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:50:09,065 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcpy-alloca-2.i_Iteration3_Lasso [2021-12-21 22:50:09,065 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:50:09,065 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:50:09,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:09,853 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:50:09,854 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:50:09,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:09,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:09,855 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) [2021-12-21 22:50:09,856 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 [2021-12-21 22:50:09,858 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 [2021-12-21 22:50:09,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:09,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:09,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:09,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:09,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:09,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:09,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:09,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:09,898 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 [2021-12-21 22:50:09,899 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:09,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:09,936 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) [2021-12-21 22:50:09,937 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 [2021-12-21 22:50:09,938 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 [2021-12-21 22:50:09,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:09,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:09,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:09,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:09,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:09,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:09,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:09,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:09,970 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 [2021-12-21 22:50:09,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:09,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:09,972 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) [2021-12-21 22:50:09,972 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 [2021-12-21 22:50:09,974 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 [2021-12-21 22:50:09,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:09,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:09,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:09,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:09,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:09,980 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:09,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:09,991 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:10,007 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 [2021-12-21 22:50:10,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:10,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:10,009 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2021-12-21 22:50:10,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-21 22:50:10,010 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 [2021-12-21 22:50:10,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:10,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:10,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:10,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:10,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:10,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:10,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:10,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:10,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-21 22:50:10,040 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:10,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:10,041 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) [2021-12-21 22:50:10,042 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 [2021-12-21 22:50:10,043 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 [2021-12-21 22:50:10,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:10,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:10,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:10,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:10,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:10,057 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:10,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:10,090 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 [2021-12-21 22:50:10,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:10,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:10,091 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) [2021-12-21 22:50:10,102 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 [2021-12-21 22:50:10,102 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 [2021-12-21 22:50:10,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:10,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:10,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:10,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:10,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:10,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:10,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:10,112 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:10,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-21 22:50:10,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:10,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:10,129 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) [2021-12-21 22:50:10,130 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 [2021-12-21 22:50:10,133 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 [2021-12-21 22:50:10,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:10,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:10,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:10,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:10,141 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:10,141 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:10,143 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:10,162 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 [2021-12-21 22:50:10,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:10,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:10,163 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) [2021-12-21 22:50:10,164 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 [2021-12-21 22:50:10,166 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 [2021-12-21 22:50:10,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:10,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:10,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:10,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:10,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:10,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:10,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:10,179 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:10,197 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 [2021-12-21 22:50:10,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:10,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:10,199 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) [2021-12-21 22:50:10,200 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 [2021-12-21 22:50:10,201 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 [2021-12-21 22:50:10,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:10,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:10,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:10,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:10,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:10,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:10,230 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:10,246 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 [2021-12-21 22:50:10,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:10,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:10,247 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) [2021-12-21 22:50:10,249 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 [2021-12-21 22:50:10,249 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 [2021-12-21 22:50:10,256 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:10,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:10,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:10,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:10,266 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:10,266 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:10,281 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:50:10,311 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-12-21 22:50:10,311 INFO L444 ModelExtractionUtils]: 26 out of 46 variables were initially zero. Simplification set additionally 17 variables to zero. [2021-12-21 22:50:10,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:10,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:10,312 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) [2021-12-21 22:50:10,313 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 [2021-12-21 22:50:10,343 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:50:10,379 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-21 22:50:10,379 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:50:10,379 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcpy_~to#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc7#1.base)_2) = -1*ULTIMATE.start_cstrcpy_~to#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc7#1.base)_2 Supporting invariants [] [2021-12-21 22:50:10,397 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 [2021-12-21 22:50:10,437 INFO L297 tatePredicateManager]: 13 out of 14 supporting invariants were superfluous and have been removed [2021-12-21 22:50:10,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:50:10,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 22:50:10,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:50:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:50:10,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 22:50:10,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:50:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:50:10,532 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-21 22:50:10,532 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2021-12-21 22:50:10,550 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) Result 15 states and 19 transitions. Complement of second has 5 states. [2021-12-21 22:50:10,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-21 22:50:10,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2021-12-21 22:50:10,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-21 22:50:10,551 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 3 letters. [2021-12-21 22:50:10,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:10,551 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 12 letters. Loop has 3 letters. [2021-12-21 22:50:10,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:10,551 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 6 letters. [2021-12-21 22:50:10,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:10,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2021-12-21 22:50:10,552 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:50:10,552 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-12-21 22:50:10,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 22:50:10,552 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 22:50:10,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 22:50:10,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:50:10,552 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:50:10,552 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:50:10,552 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:50:10,552 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-21 22:50:10,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-21 22:50:10,553 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:50:10,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-21 22:50:10,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:50:10 BoogieIcfgContainer [2021-12-21 22:50:10,557 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:50:10,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:50:10,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:50:10,557 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:50:10,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:50:06" (3/4) ... [2021-12-21 22:50:10,559 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 22:50:10,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:50:10,560 INFO L158 Benchmark]: Toolchain (without parser) took 4689.25ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 83.6MB in the beginning and 47.0MB in the end (delta: 36.6MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2021-12-21 22:50:10,560 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 86.0MB. Free memory was 43.5MB in the beginning and 43.5MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:50:10,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.89ms. Allocated memory is still 115.3MB. Free memory was 83.6MB in the beginning and 86.7MB in the end (delta: -3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:50:10,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.22ms. Allocated memory is still 115.3MB. Free memory was 86.7MB in the beginning and 84.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:50:10,561 INFO L158 Benchmark]: Boogie Preprocessor took 31.10ms. Allocated memory is still 115.3MB. Free memory was 84.6MB in the beginning and 83.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:50:10,561 INFO L158 Benchmark]: RCFGBuilder took 321.33ms. Allocated memory is still 115.3MB. Free memory was 83.2MB in the beginning and 72.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 22:50:10,561 INFO L158 Benchmark]: BuchiAutomizer took 3944.76ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 72.7MB in the beginning and 47.0MB in the end (delta: 25.7MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2021-12-21 22:50:10,561 INFO L158 Benchmark]: Witness Printer took 2.02ms. Allocated memory is still 144.7MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:50:10,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 86.0MB. Free memory was 43.5MB in the beginning and 43.5MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.89ms. Allocated memory is still 115.3MB. Free memory was 83.6MB in the beginning and 86.7MB in the end (delta: -3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.22ms. Allocated memory is still 115.3MB. Free memory was 86.7MB in the beginning and 84.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.10ms. Allocated memory is still 115.3MB. Free memory was 84.6MB in the beginning and 83.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 321.33ms. Allocated memory is still 115.3MB. Free memory was 83.2MB in the beginning and 72.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3944.76ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 72.7MB in the beginning and 47.0MB in the end (delta: 25.7MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Witness Printer took 2.02ms. Allocated memory is still 144.7MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * to + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 37 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital165 mio100 ax111 hnf100 lsp84 ukn87 mio100 lsp50 div100 bol100 ite100 ukn100 eq179 hnf89 smp100 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 163ms VariablesStem: 8 VariablesLoop: 6 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! [2021-12-21 22:50:10,597 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 [2021-12-21 22:50:10,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE