./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 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/mult_array-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 516828c2d0e4e4ea6fd7a5826d09ca378c2c75a9f8159cf96c4b4e28ff76714b --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 03:13:31,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 03:13:31,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 03:13:31,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 03:13:31,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 03:13:31,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 03:13:31,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 03:13:31,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 03:13:31,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 03:13:31,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 03:13:31,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 03:13:31,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 03:13:31,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 03:13:31,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 03:13:31,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 03:13:31,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 03:13:31,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 03:13:31,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 03:13:31,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 03:13:31,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 03:13:31,225 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 03:13:31,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 03:13:31,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 03:13:31,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 03:13:31,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 03:13:31,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 03:13:31,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 03:13:31,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 03:13:31,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 03:13:31,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 03:13:31,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 03:13:31,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 03:13:31,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 03:13:31,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 03:13:31,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 03:13:31,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 03:13:31,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 03:13:31,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 03:13:31,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 03:13:31,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 03:13:31,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 03:13:31,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 03:13:31,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 03:13:31,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 03:13:31,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 03:13:31,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 03:13:31,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 03:13:31,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 03:13:31,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 03:13:31,269 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 03:13:31,269 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 03:13:31,270 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 03:13:31,270 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 03:13:31,270 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 03:13:31,270 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 03:13:31,271 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 03:13:31,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 03:13:31,271 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 03:13:31,271 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 03:13:31,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 03:13:31,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 03:13:31,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 03:13:31,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 03:13:31,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 03:13:31,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 03:13:31,272 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 03:13:31,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 03:13:31,272 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 03:13:31,272 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 03:13:31,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 03:13:31,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 03:13:31,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 03:13:31,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 03:13:31,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 03:13:31,275 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 03:13:31,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516828c2d0e4e4ea6fd7a5826d09ca378c2c75a9f8159cf96c4b4e28ff76714b [2022-07-22 03:13:31,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 03:13:31,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 03:13:31,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 03:13:31,558 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 03:13:31,559 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 03:13:31,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2022-07-22 03:13:31,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c8a8f34/7436aa70d917466981ff6fb375100f98/FLAGaa25e422e [2022-07-22 03:13:32,051 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 03:13:32,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2022-07-22 03:13:32,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c8a8f34/7436aa70d917466981ff6fb375100f98/FLAGaa25e422e [2022-07-22 03:13:32,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c8a8f34/7436aa70d917466981ff6fb375100f98 [2022-07-22 03:13:32,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 03:13:32,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 03:13:32,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 03:13:32,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 03:13:32,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 03:13:32,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:13:32" (1/1) ... [2022-07-22 03:13:32,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3394b627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:13:32, skipping insertion in model container [2022-07-22 03:13:32,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:13:32" (1/1) ... [2022-07-22 03:13:32,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 03:13:32,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 03:13:32,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 03:13:32,686 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 03:13:32,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 03:13:32,735 INFO L208 MainTranslator]: Completed translation [2022-07-22 03:13:32,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:13:32 WrapperNode [2022-07-22 03:13:32,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 03:13:32,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 03:13:32,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 03:13:32,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 03:13:32,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:13:32" (1/1) ... [2022-07-22 03:13:32,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:13:32" (1/1) ... [2022-07-22 03:13:32,774 INFO L137 Inliner]: procedures = 115, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2022-07-22 03:13:32,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 03:13:32,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 03:13:32,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 03:13:32,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 03:13:32,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:13:32" (1/1) ... [2022-07-22 03:13:32,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:13:32" (1/1) ... [2022-07-22 03:13:32,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:13:32" (1/1) ... [2022-07-22 03:13:32,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:13:32" (1/1) ... [2022-07-22 03:13:32,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:13:32" (1/1) ... [2022-07-22 03:13:32,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:13:32" (1/1) ... [2022-07-22 03:13:32,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:13:32" (1/1) ... [2022-07-22 03:13:32,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 03:13:32,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 03:13:32,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 03:13:32,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 03:13:32,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:13:32" (1/1) ... [2022-07-22 03:13:32,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 03:13:32,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:32,844 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) [2022-07-22 03:13:32,855 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 [2022-07-22 03:13:32,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 03:13:32,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 03:13:32,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 03:13:32,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 03:13:32,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 03:13:32,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 03:13:32,940 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 03:13:32,942 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 03:13:33,116 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 03:13:33,120 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 03:13:33,120 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 03:13:33,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:13:33 BoogieIcfgContainer [2022-07-22 03:13:33,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 03:13:33,130 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 03:13:33,131 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 03:13:33,133 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 03:13:33,134 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 03:13:33,134 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 03:13:32" (1/3) ... [2022-07-22 03:13:33,134 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6024bb9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 03:13:33, skipping insertion in model container [2022-07-22 03:13:33,135 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 03:13:33,135 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:13:32" (2/3) ... [2022-07-22 03:13:33,135 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6024bb9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 03:13:33, skipping insertion in model container [2022-07-22 03:13:33,135 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 03:13:33,135 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:13:33" (3/3) ... [2022-07-22 03:13:33,136 INFO L354 chiAutomizerObserver]: Analyzing ICFG mult_array-alloca-1.i [2022-07-22 03:13:33,194 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 03:13:33,209 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 03:13:33,212 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 03:13:33,212 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 03:13:33,212 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 03:13:33,212 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 03:13:33,212 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 03:13:33,213 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 03:13:33,216 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) [2022-07-22 03:13:33,234 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-07-22 03:13:33,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 03:13:33,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 03:13:33,244 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 03:13:33,245 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 03:13:33,245 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 03:13:33,245 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) [2022-07-22 03:13:33,248 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-07-22 03:13:33,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 03:13:33,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 03:13:33,249 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 03:13:33,249 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 03:13:33,254 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet7#1, main_#t~post6#1, main_#t~mem9#1, main_#t~post8#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~fac~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~arr2~0#1.base, main_~arr2~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 8#L515true assume !(main_~length~0#1 < 1 || main_~length~0#1 % 4294967296 >= 536870911); 5#L515-2true main_~fac~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 16#L517true assume !(main_~fac~0#1 < 1 || main_~fac~0#1 % 4294967296 >= 2147483647 / (4 * main_~length~0#1 % 4294967296) % 4294967296); 9#L517-2true call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(4 * (main_~fac~0#1 * main_~length~0#1));main_~arr2~0#1.base, main_~arr2~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset; 10#L520true assume !((main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0) || (main_~arr2~0#1.base == 0 && main_~arr2~0#1.offset == 0));main_~i~0#1 := 0; 4#L521-3true [2022-07-22 03:13:33,254 INFO L754 eck$LassoCheckResult]: Loop: 4#L521-3true assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet7#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet7#1; 6#L521-2true main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 4#L521-3true [2022-07-22 03:13:33,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:13:33,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815374, now seen corresponding path program 1 times [2022-07-22 03:13:33,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 03:13:33,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112078039] [2022-07-22 03:13:33,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:33,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 03:13:33,355 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 03:13:33,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [772849120] [2022-07-22 03:13:33,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:33,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 03:13:33,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:33,358 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 03:13:33,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 03:13:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:13:33,428 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 03:13:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:13:33,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 03:13:33,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:13:33,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2022-07-22 03:13:33,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 03:13:33,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799030538] [2022-07-22 03:13:33,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:33,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 03:13:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:13:33,479 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 03:13:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:13:33,501 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 03:13:33,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:13:33,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1182787760, now seen corresponding path program 1 times [2022-07-22 03:13:33,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 03:13:33,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623279223] [2022-07-22 03:13:33,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:33,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 03:13:33,523 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 03:13:33,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197489598] [2022-07-22 03:13:33,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:33,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 03:13:33,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:33,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 03:13:33,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 03:13:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:13:33,583 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 03:13:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:13:33,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 03:13:34,100 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 03:13:34,101 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 03:13:34,101 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 03:13:34,101 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 03:13:34,101 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 03:13:34,102 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 03:13:34,102 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 03:13:34,102 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 03:13:34,102 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca-1.i_Iteration1_Lasso [2022-07-22 03:13:34,102 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 03:13:34,102 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 03:13:34,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:34,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:34,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:34,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:34,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:34,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:34,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:34,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:34,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:34,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:34,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:34,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:34,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:34,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:40,753 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 03:13:40,756 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 03:13:40,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 03:13:40,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:40,759 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) [2022-07-22 03:13:40,761 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 [2022-07-22 03:13:40,762 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 [2022-07-22 03:13:40,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 03:13:40,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 03:13:40,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 03:13:40,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 03:13:40,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 03:13:40,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 03:13:40,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 03:13:40,786 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 03:13:40,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-07-22 03:13:40,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 03:13:40,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:40,811 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) [2022-07-22 03:13:40,811 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 [2022-07-22 03:13:40,813 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 [2022-07-22 03:13:40,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 03:13:40,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 03:13:40,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 03:13:40,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 03:13:40,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 03:13:40,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 03:13:40,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 03:13:40,834 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 03:13:40,853 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 [2022-07-22 03:13:40,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 03:13:40,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:40,855 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) [2022-07-22 03:13:40,856 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 [2022-07-22 03:13:40,859 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 [2022-07-22 03:13:40,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 03:13:40,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 03:13:40,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 03:13:40,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 03:13:40,870 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 03:13:40,870 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 03:13:40,882 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 03:13:40,901 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 [2022-07-22 03:13:40,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 03:13:40,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:40,903 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) [2022-07-22 03:13:40,903 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 [2022-07-22 03:13:40,937 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 [2022-07-22 03:13:40,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 03:13:40,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 03:13:40,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 03:13:40,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 03:13:40,945 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 03:13:40,945 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 03:13:40,966 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 03:13:40,982 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 [2022-07-22 03:13:40,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 03:13:40,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:40,983 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) [2022-07-22 03:13:40,984 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 [2022-07-22 03:13:40,985 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 [2022-07-22 03:13:40,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 03:13:40,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 03:13:40,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 03:13:40,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 03:13:40,993 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 03:13:40,994 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 03:13:41,005 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 03:13:41,022 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 [2022-07-22 03:13:41,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 03:13:41,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:41,024 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) [2022-07-22 03:13:41,024 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 [2022-07-22 03:13:41,026 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 [2022-07-22 03:13:41,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 03:13:41,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 03:13:41,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 03:13:41,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 03:13:41,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 03:13:41,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 03:13:41,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 03:13:41,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 03:13:41,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-22 03:13:41,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 03:13:41,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:41,055 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) [2022-07-22 03:13:41,056 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 [2022-07-22 03:13:41,058 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 [2022-07-22 03:13:41,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 03:13:41,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 03:13:41,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 03:13:41,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 03:13:41,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 03:13:41,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 03:13:41,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 03:13:41,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 03:13:41,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-07-22 03:13:41,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 03:13:41,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:41,099 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) [2022-07-22 03:13:41,100 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 [2022-07-22 03:13:41,102 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 [2022-07-22 03:13:41,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 03:13:41,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 03:13:41,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 03:13:41,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 03:13:41,117 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 03:13:41,117 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 03:13:41,130 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 03:13:41,151 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2022-07-22 03:13:41,151 INFO L444 ModelExtractionUtils]: 14 out of 28 variables were initially zero. Simplification set additionally 11 variables to zero. [2022-07-22 03:13:41,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 03:13:41,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:41,175 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) [2022-07-22 03:13:41,179 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 03:13:41,188 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 [2022-07-22 03:13:41,202 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-22 03:13:41,202 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 03:13:41,202 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~length~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~length~0#1 Supporting invariants [] [2022-07-22 03:13:41,220 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 [2022-07-22 03:13:41,245 INFO L293 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2022-07-22 03:13:41,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:13:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 03:13:41,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 03:13:41,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 03:13:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 03:13:41,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 03:13:41,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 03:13:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 03:13:41,365 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 [2022-07-22 03:13:41,368 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-07-22 03:13:41,378 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 [2022-07-22 03:13:41,442 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 35 states and 46 transitions. Complement of second has 7 states. [2022-07-22 03:13:41,444 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 [2022-07-22 03:13:41,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-07-22 03:13:41,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2022-07-22 03:13:41,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 2 letters. [2022-07-22 03:13:41,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 03:13:41,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 9 letters. Loop has 2 letters. [2022-07-22 03:13:41,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 03:13:41,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 4 letters. [2022-07-22 03:13:41,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 03:13:41,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2022-07-22 03:13:41,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 03:13:41,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 13 states and 17 transitions. [2022-07-22 03:13:41,463 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-22 03:13:41,463 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-07-22 03:13:41,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2022-07-22 03:13:41,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 03:13:41,464 INFO L369 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-07-22 03:13:41,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2022-07-22 03:13:41,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-07-22 03:13:41,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 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) [2022-07-22 03:13:41,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2022-07-22 03:13:41,480 INFO L392 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-07-22 03:13:41,481 INFO L374 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-07-22 03:13:41,481 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 03:13:41,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2022-07-22 03:13:41,481 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 03:13:41,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 03:13:41,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 03:13:41,482 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 03:13:41,482 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 03:13:41,482 INFO L752 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 130#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet7#1, main_#t~post6#1, main_#t~mem9#1, main_#t~post8#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~fac~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~arr2~0#1.base, main_~arr2~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 139#L515 assume !(main_~length~0#1 < 1 || main_~length~0#1 % 4294967296 >= 536870911); 136#L515-2 main_~fac~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 137#L517 assume !(main_~fac~0#1 < 1 || main_~fac~0#1 % 4294967296 >= 2147483647 / (4 * main_~length~0#1 % 4294967296) % 4294967296); 140#L517-2 call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(4 * (main_~fac~0#1 * main_~length~0#1));main_~arr2~0#1.base, main_~arr2~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset; 141#L520 assume !((main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0) || (main_~arr2~0#1.base == 0 && main_~arr2~0#1.offset == 0));main_~i~0#1 := 0; 131#L521-3 assume !(main_~i~0#1 < main_~length~0#1); 132#L521-4 main_~j~0#1 := 0; 135#L524-3 [2022-07-22 03:13:41,482 INFO L754 eck$LassoCheckResult]: Loop: 135#L524-3 assume !!(main_~j~0#1 < main_~length~0#1 * main_~fac~0#1);call main_#t~mem9#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (if main_~i~0#1 < 0 && 0 != main_~i~0#1 % main_~length~0#1 then (if main_~length~0#1 < 0 then main_~i~0#1 % main_~length~0#1 + main_~length~0#1 else main_~i~0#1 % main_~length~0#1 - main_~length~0#1) else main_~i~0#1 % main_~length~0#1), 4);call write~int(main_#t~mem9#1, main_~arr2~0#1.base, main_~arr2~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem9#1; 138#L524-2 main_#t~post8#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 135#L524-3 [2022-07-22 03:13:41,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:13:41,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1182787702, now seen corresponding path program 1 times [2022-07-22 03:13:41,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 03:13:41,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706541929] [2022-07-22 03:13:41,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:41,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 03:13:41,489 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 03:13:41,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [356332292] [2022-07-22 03:13:41,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:41,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 03:13:41,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:41,491 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 03:13:41,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 03:13:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 03:13:41,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 03:13:41,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 03:13:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 03:13:41,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 03:13:41,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 03:13:41,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706541929] [2022-07-22 03:13:41,580 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 03:13:41,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356332292] [2022-07-22 03:13:41,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356332292] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 03:13:41,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 03:13:41,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 03:13:41,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865178842] [2022-07-22 03:13:41,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 03:13:41,583 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 03:13:41,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:13:41,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 1 times [2022-07-22 03:13:41,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 03:13:41,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154952448] [2022-07-22 03:13:41,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:41,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 03:13:41,593 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 03:13:41,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [182398504] [2022-07-22 03:13:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:41,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 03:13:41,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:41,598 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 03:13:41,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-22 03:13:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:13:41,630 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 03:13:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:13:41,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 03:13:43,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 03:13:43,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 03:13:43,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 03:13:43,222 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-07-22 03:13:43,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 03:13:43,275 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2022-07-22 03:13:43,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 03:13:43,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2022-07-22 03:13:43,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 03:13:43,277 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 17 transitions. [2022-07-22 03:13:43,277 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-07-22 03:13:43,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-07-22 03:13:43,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2022-07-22 03:13:43,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 03:13:43,277 INFO L369 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-07-22 03:13:43,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2022-07-22 03:13:43,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-07-22 03:13:43,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) 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) [2022-07-22 03:13:43,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2022-07-22 03:13:43,279 INFO L392 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-07-22 03:13:43,279 INFO L374 stractBuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-07-22 03:13:43,279 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 03:13:43,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2022-07-22 03:13:43,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 03:13:43,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 03:13:43,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 03:13:43,280 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 03:13:43,280 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 03:13:43,280 INFO L752 eck$LassoCheckResult]: Stem: 187#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 188#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~nondet3#1, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet7#1, main_#t~post6#1, main_#t~mem9#1, main_#t~post8#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~fac~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~arr2~0#1.base, main_~arr2~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 197#L515 assume !(main_~length~0#1 < 1 || main_~length~0#1 % 4294967296 >= 536870911); 194#L515-2 main_~fac~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 195#L517 assume !(main_~fac~0#1 < 1 || main_~fac~0#1 % 4294967296 >= 2147483647 / (4 * main_~length~0#1 % 4294967296) % 4294967296); 198#L517-2 call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(4 * (main_~fac~0#1 * main_~length~0#1));main_~arr2~0#1.base, main_~arr2~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset; 199#L520 assume !((main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0) || (main_~arr2~0#1.base == 0 && main_~arr2~0#1.offset == 0));main_~i~0#1 := 0; 189#L521-3 assume !!(main_~i~0#1 < main_~length~0#1);call write~int(main_#t~nondet7#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet7#1; 190#L521-2 main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 191#L521-3 assume !(main_~i~0#1 < main_~length~0#1); 192#L521-4 main_~j~0#1 := 0; 193#L524-3 [2022-07-22 03:13:43,280 INFO L754 eck$LassoCheckResult]: Loop: 193#L524-3 assume !!(main_~j~0#1 < main_~length~0#1 * main_~fac~0#1);call main_#t~mem9#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (if main_~i~0#1 < 0 && 0 != main_~i~0#1 % main_~length~0#1 then (if main_~length~0#1 < 0 then main_~i~0#1 % main_~length~0#1 + main_~length~0#1 else main_~i~0#1 % main_~length~0#1 - main_~length~0#1) else main_~i~0#1 % main_~length~0#1), 4);call write~int(main_#t~mem9#1, main_~arr2~0#1.base, main_~arr2~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem9#1; 196#L524-2 main_#t~post8#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 193#L524-3 [2022-07-22 03:13:43,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:13:43,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1507295208, now seen corresponding path program 1 times [2022-07-22 03:13:43,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 03:13:43,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754366206] [2022-07-22 03:13:43,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:43,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 03:13:43,286 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 03:13:43,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422140376] [2022-07-22 03:13:43,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:43,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 03:13:43,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:43,289 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 03:13:43,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-22 03:13:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:13:43,352 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 03:13:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:13:43,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 03:13:43,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:13:43,372 INFO L85 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 2 times [2022-07-22 03:13:43,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 03:13:43,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362508746] [2022-07-22 03:13:43,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:43,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 03:13:43,380 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 03:13:43,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124956348] [2022-07-22 03:13:43,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 03:13:43,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 03:13:43,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:43,424 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 03:13:43,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-22 03:13:43,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 03:13:43,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-07-22 03:13:43,461 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 03:13:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:13:43,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 03:13:43,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 03:13:43,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1106714758, now seen corresponding path program 1 times [2022-07-22 03:13:43,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 03:13:43,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33524465] [2022-07-22 03:13:43,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:43,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 03:13:43,484 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 03:13:43,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [459177055] [2022-07-22 03:13:43,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 03:13:43,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 03:13:43,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 03:13:43,486 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 03:13:43,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-22 03:13:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:13:43,543 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 03:13:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 03:13:43,565 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 03:13:53,319 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 03:13:53,319 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 03:13:53,319 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 03:13:53,319 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 03:13:53,319 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 03:13:53,319 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 03:13:53,319 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 03:13:53,319 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 03:13:53,319 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca-1.i_Iteration3_Lasso [2022-07-22 03:13:53,319 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 03:13:53,319 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 03:13:53,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 03:13:54,490 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.IllegalArgumentException at de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) at java.base/java.util.AbstractMap.putAll(AbstractMap.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.PureSubstitution.(PureSubstitution.java:81) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.(Substitution.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.apply(Substitution.java:59) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceMapReads(MapEliminator.java:518) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:342) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:601) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:914) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:823) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:247) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.runCegarLoop(AbstractBuchiCegarLoop.java:310) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:363) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-22 03:13:54,494 INFO L158 Benchmark]: Toolchain (without parser) took 22089.85ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 44.6MB in the beginning and 49.1MB in the end (delta: -4.5MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2022-07-22 03:13:54,494 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 03:13:54,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.12ms. Allocated memory is still 65.0MB. Free memory was 44.5MB in the beginning and 42.6MB in the end (delta: 1.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-22 03:13:54,495 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.12ms. Allocated memory is still 65.0MB. Free memory was 42.6MB in the beginning and 40.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 03:13:54,495 INFO L158 Benchmark]: Boogie Preprocessor took 38.83ms. Allocated memory is still 65.0MB. Free memory was 40.7MB in the beginning and 39.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 03:13:54,496 INFO L158 Benchmark]: RCFGBuilder took 310.77ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 39.4MB in the beginning and 62.4MB in the end (delta: -23.0MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-07-22 03:13:54,496 INFO L158 Benchmark]: BuchiAutomizer took 21362.40ms. Allocated memory is still 81.8MB. Free memory was 62.1MB in the beginning and 49.1MB in the end (delta: 13.0MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2022-07-22 03:13:54,498 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 65.0MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.12ms. Allocated memory is still 65.0MB. Free memory was 44.5MB in the beginning and 42.6MB in the end (delta: 1.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.12ms. Allocated memory is still 65.0MB. Free memory was 42.6MB in the beginning and 40.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.83ms. Allocated memory is still 65.0MB. Free memory was 40.7MB in the beginning and 39.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 310.77ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 39.4MB in the beginning and 62.4MB in the end (delta: -23.0MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 21362.40ms. Allocated memory is still 81.8MB. Free memory was 62.1MB in the beginning and 49.1MB in the end (delta: 13.0MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: IllegalArgumentException: null de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: IllegalArgumentException: null: de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-22 03:13:54,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-07-22 03:13:54,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-22 03:13:54,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-22 03:13:55,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-22 03:13:55,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-22 03:13:55,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 03:13:55,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-22 03:13:55,921 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 Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalArgumentException: null