./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ldv-regression/test24-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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/ldv-regression/test24-1.c -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 61e163c7079e2ec105ad677de51f27ac7eccc49ef492909c4fa51ebc02ead9b7 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 09:46:46,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:46:46,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:46:46,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:46:46,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:46:46,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:46:46,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:46:46,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:46:46,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:46:46,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:46:46,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:46:46,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:46:46,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:46:46,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:46:46,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:46:46,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:46:46,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:46:46,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:46:46,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:46:46,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:46:46,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:46:46,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:46:46,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:46:46,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:46:46,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:46:46,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:46:46,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:46:46,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:46:46,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:46:46,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:46:46,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:46:46,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:46:46,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:46:46,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:46:46,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:46:46,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:46:46,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:46:46,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:46:46,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:46:46,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:46:46,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:46:46,094 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-16 09:46:46,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:46:46,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:46:46,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:46:46,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:46:46,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:46:46,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:46:46,114 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:46:46,114 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 09:46:46,115 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 09:46:46,115 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 09:46:46,115 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 09:46:46,115 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 09:46:46,115 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 09:46:46,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:46:46,116 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 09:46:46,116 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:46:46,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:46:46,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 09:46:46,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:46:46,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 09:46:46,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 09:46:46,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 09:46:46,117 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 09:46:46,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:46:46,118 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 09:46:46,118 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:46:46,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 09:46:46,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:46:46,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:46:46,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:46:46,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:46:46,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:46:46,120 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 09:46:46,120 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61e163c7079e2ec105ad677de51f27ac7eccc49ef492909c4fa51ebc02ead9b7 [2021-12-16 09:46:46,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:46:46,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:46:46,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:46:46,323 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:46:46,324 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:46:46,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test24-1.c [2021-12-16 09:46:46,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e75d2f266/c352aace100d44499f5e7c7bd3769b61/FLAG254c0c9d1 [2021-12-16 09:46:46,796 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:46:46,797 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test24-1.c [2021-12-16 09:46:46,804 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e75d2f266/c352aace100d44499f5e7c7bd3769b61/FLAG254c0c9d1 [2021-12-16 09:46:46,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e75d2f266/c352aace100d44499f5e7c7bd3769b61 [2021-12-16 09:46:46,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:46:46,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:46:46,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:46:46,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:46:46,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:46:46,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:46:46" (1/1) ... [2021-12-16 09:46:46,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524c274c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:46:46, skipping insertion in model container [2021-12-16 09:46:46,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:46:46" (1/1) ... [2021-12-16 09:46:46,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:46:46,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:46:47,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test24-1.c[704,717] [2021-12-16 09:46:47,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:46:47,034 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:46:47,052 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test24-1.c[704,717] [2021-12-16 09:46:47,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:46:47,066 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:46:47,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:46:47 WrapperNode [2021-12-16 09:46:47,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:46:47,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:46:47,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:46:47,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:46:47,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:46:47" (1/1) ... [2021-12-16 09:46:47,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:46:47" (1/1) ... [2021-12-16 09:46:47,101 INFO L137 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57 [2021-12-16 09:46:47,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:46:47,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:46:47,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:46:47,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:46:47,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:46:47" (1/1) ... [2021-12-16 09:46:47,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:46:47" (1/1) ... [2021-12-16 09:46:47,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:46:47" (1/1) ... [2021-12-16 09:46:47,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:46:47" (1/1) ... [2021-12-16 09:46:47,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:46:47" (1/1) ... [2021-12-16 09:46:47,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:46:47" (1/1) ... [2021-12-16 09:46:47,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:46:47" (1/1) ... [2021-12-16 09:46:47,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:46:47,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:46:47,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:46:47,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:46:47,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:46:47" (1/1) ... [2021-12-16 09:46:47,141 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:46:47,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:46:47,177 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) [2021-12-16 09:46:47,182 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 [2021-12-16 09:46:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 09:46:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 09:46:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 09:46:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 09:46:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:46:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:46:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 09:46:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 09:46:47,262 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:46:47,263 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:46:47,436 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:46:47,440 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:46:47,440 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 09:46:47,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:46:47 BoogieIcfgContainer [2021-12-16 09:46:47,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:46:47,443 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 09:46:47,443 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 09:46:47,450 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 09:46:47,463 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:46:47,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 09:46:46" (1/3) ... [2021-12-16 09:46:47,465 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b8fd887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:46:47, skipping insertion in model container [2021-12-16 09:46:47,465 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:46:47,465 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:46:47" (2/3) ... [2021-12-16 09:46:47,465 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b8fd887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:46:47, skipping insertion in model container [2021-12-16 09:46:47,465 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:46:47,466 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:46:47" (3/3) ... [2021-12-16 09:46:47,467 INFO L388 chiAutomizerObserver]: Analyzing ICFG test24-1.c [2021-12-16 09:46:47,515 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 09:46:47,523 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 09:46:47,523 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 09:46:47,524 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 09:46:47,524 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 09:46:47,524 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 09:46:47,524 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 09:46:47,524 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 09:46:47,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) [2021-12-16 09:46:47,561 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-16 09:46:47,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:46:47,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:46:47,567 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-16 09:46:47,567 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:46:47,567 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 09:46:47,567 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) [2021-12-16 09:46:47,570 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-16 09:46:47,570 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:46:47,571 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:46:47,573 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-16 09:46:47,573 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:46:47,579 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 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~mem6#1, main_#t~pre8#1, main_#t~mem7#1, main_#t~ret9#1, main_~#ad1~0#1.base, main_~#ad1~0#1.offset, main_~ad2~0#1.base, main_~ad2~0#1.offset, main_~i~0#1, main_~pa~0#1.base, main_~pa~0#1.offset;call main_~#ad1~0#1.base, main_~#ad1~0#1.offset := #Ultimate.allocOnStack(80);havoc main_~ad2~0#1.base, main_~ad2~0#1.offset;havoc main_~i~0#1;havoc main_~pa~0#1.base, main_~pa~0#1.offset;main_~i~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 11#L23true assume main_~i~0#1 >= 0 && main_~i~0#1 < 10;main_~ad2~0#1.base, main_~ad2~0#1.offset := main_~#ad1~0#1.base, main_~#ad1~0#1.offset;call write~int(main_~i~0#1, main_~#ad1~0#1.base, main_~#ad1~0#1.offset + 8 * main_~i~0#1, 4);main_~pa~0#1.base, main_~pa~0#1.offset := main_~#ad1~0#1.base, main_~#ad1~0#1.offset + 8 * main_~i~0#1;call main_#t~mem6#1 := read~int(main_~ad2~0#1.base, main_~ad2~0#1.offset + 8 * main_~i~0#1, 4);main_~i~0#1 := main_#t~mem6#1 - 10;havoc main_#t~mem6#1; 12#L28-3true [2021-12-16 09:46:47,579 INFO L793 eck$LassoCheckResult]: Loop: 12#L28-3true call main_#t~mem7#1 := read~int(main_~pa~0#1.base, main_~pa~0#1.offset, 4); 10#L28-1true assume !!(main_~i~0#1 < main_#t~mem7#1);havoc main_#t~mem7#1;main_#t~pre8#1 := 1 + main_~i~0#1;main_~i~0#1 := 1 + main_~i~0#1;havoc main_#t~pre8#1; 12#L28-3true [2021-12-16 09:46:47,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:46:47,590 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-12-16 09:46:47,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:46:47,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426308374] [2021-12-16 09:46:47,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:46:47,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:46:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:46:47,726 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:46:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:46:47,766 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:46:47,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:46:47,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2021-12-16 09:46:47,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:46:47,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884594905] [2021-12-16 09:46:47,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:46:47,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:46:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:46:47,787 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:46:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:46:47,803 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:46:47,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:46:47,805 INFO L85 PathProgramCache]: Analyzing trace with hash 28693863, now seen corresponding path program 1 times [2021-12-16 09:46:47,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:46:47,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585743753] [2021-12-16 09:46:47,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:46:47,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:46:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:46:47,841 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:46:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:46:47,877 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:46:48,462 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:46:48,462 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:46:48,462 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:46:48,462 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:46:48,463 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:46:48,463 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:46:48,463 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:46:48,463 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:46:48,463 INFO L133 ssoRankerPreferences]: Filename of dumped script: test24-1.c_Iteration1_Lasso [2021-12-16 09:46:48,463 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:46:48,463 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:46:48,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:46:48,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:46:48,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:46:48,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:46:48,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:46:48,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:46:48,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:46:48,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:46:48,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:46:49,267 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:46:49,270 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:46:49,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:46:49,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:46:49,274 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) [2021-12-16 09:46:49,280 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 [2021-12-16 09:46:49,283 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 [2021-12-16 09:46:49,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:46:49,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:46:49,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:46:49,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:46:49,296 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:46:49,296 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:46:49,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:46:49,323 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 [2021-12-16 09:46:49,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:46:49,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:46:49,326 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) [2021-12-16 09:46:49,327 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 [2021-12-16 09:46:49,328 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 [2021-12-16 09:46:49,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:46:49,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:46:49,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:46:49,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:46:49,339 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:46:49,339 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:46:49,354 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:46:49,383 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 [2021-12-16 09:46:49,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:46:49,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:46:49,385 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) [2021-12-16 09:46:49,386 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 [2021-12-16 09:46:49,387 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 [2021-12-16 09:46:49,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:46:49,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:46:49,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:46:49,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:46:49,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:46:49,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:46:49,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:46:49,449 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 [2021-12-16 09:46:49,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:46:49,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:46:49,452 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) [2021-12-16 09:46:49,452 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 [2021-12-16 09:46:49,453 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 [2021-12-16 09:46:49,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:46:49,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:46:49,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:46:49,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:46:49,471 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:46:49,472 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:46:49,503 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:46:49,535 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-12-16 09:46:49,535 INFO L444 ModelExtractionUtils]: 0 out of 31 variables were initially zero. Simplification set additionally 28 variables to zero. [2021-12-16 09:46:49,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:46:49,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:46:49,544 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) [2021-12-16 09:46:49,545 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 [2021-12-16 09:46:49,588 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:46:49,620 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:46:49,620 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:46:49,621 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select (select #memory_int ULTIMATE.start_main_~ad2~0#1.base) (+ (* (div (+ ULTIMATE.start_main_~#ad1~0#1.offset (- ULTIMATE.start_main_~pa~0#1.offset)) (- 8)) 8) ULTIMATE.start_main_~ad2~0#1.offset))_1) = -1*ULTIMATE.start_main_~i~0#1 + 1*v_rep(select (select #memory_int ULTIMATE.start_main_~ad2~0#1.base) (+ (* (div (+ ULTIMATE.start_main_~#ad1~0#1.offset (- ULTIMATE.start_main_~pa~0#1.offset)) (- 8)) 8) ULTIMATE.start_main_~ad2~0#1.offset))_1 Supporting invariants [] [2021-12-16 09:46:49,649 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 [2021-12-16 09:46:49,712 INFO L297 tatePredicateManager]: 16 out of 19 supporting invariants were superfluous and have been removed [2021-12-16 09:46:49,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:46:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:46:49,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-16 09:46:49,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:46:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:46:49,817 WARN L261 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-16 09:46:49,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:46:49,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:46:49,888 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 [2021-12-16 09:46:49,889 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-16 09:46:49,928 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 [2021-12-16 09:46:49,988 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 32 states and 36 transitions. Complement of second has 8 states. [2021-12-16 09:46:49,990 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 [2021-12-16 09:46:49,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-16 09:46:49,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2021-12-16 09:46:49,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-16 09:46:49,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:46:49,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-16 09:46:49,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:46:49,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-16 09:46:50,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:46:50,001 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 36 transitions. [2021-12-16 09:46:50,005 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:46:50,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2021-12-16 09:46:50,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-16 09:46:50,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-16 09:46:50,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-16 09:46:50,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:46:50,010 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:46:50,011 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:46:50,011 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:46:50,011 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 09:46:50,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-16 09:46:50,011 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:46:50,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-16 09:46:50,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 09:46:50 BoogieIcfgContainer [2021-12-16 09:46:50,019 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 09:46:50,020 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 09:46:50,020 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 09:46:50,021 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 09:46:50,021 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:46:47" (3/4) ... [2021-12-16 09:46:50,023 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 09:46:50,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 09:46:50,025 INFO L158 Benchmark]: Toolchain (without parser) took 3203.00ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 71.3MB in the beginning and 92.8MB in the end (delta: -21.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:46:50,025 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:46:50,026 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.24ms. Allocated memory is still 102.8MB. Free memory was 71.0MB in the beginning and 79.6MB in the end (delta: -8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 09:46:50,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.01ms. Allocated memory is still 102.8MB. Free memory was 79.6MB in the beginning and 78.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 09:46:50,031 INFO L158 Benchmark]: Boogie Preprocessor took 29.69ms. Allocated memory is still 102.8MB. Free memory was 78.2MB in the beginning and 77.3MB in the end (delta: 983.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:46:50,031 INFO L158 Benchmark]: RCFGBuilder took 309.91ms. Allocated memory is still 102.8MB. Free memory was 76.7MB in the beginning and 67.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 09:46:50,032 INFO L158 Benchmark]: BuchiAutomizer took 2576.32ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 67.1MB in the beginning and 92.8MB in the end (delta: -25.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:46:50,033 INFO L158 Benchmark]: Witness Printer took 3.25ms. Allocated memory is still 123.7MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:46:50,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 33.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.24ms. Allocated memory is still 102.8MB. Free memory was 71.0MB in the beginning and 79.6MB in the end (delta: -8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.01ms. Allocated memory is still 102.8MB. Free memory was 79.6MB in the beginning and 78.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.69ms. Allocated memory is still 102.8MB. Free memory was 78.2MB in the beginning and 77.3MB in the end (delta: 983.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 309.91ms. Allocated memory is still 102.8MB. Free memory was 76.7MB in the beginning and 67.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2576.32ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 67.1MB in the beginning and 92.8MB in the end (delta: -25.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.25ms. Allocated memory is still 123.7MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + unknown-#memory_int-unknown[ad2][(ad1 + -pa) / -8 * 8 + ad2] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 11 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital193 mio100 ax100 hnf101 lsp96 ukn102 mio100 lsp56 div169 bol100 ite100 ukn100 eq138 hnf65 smp77 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-16 09:46:50,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE