./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/array01-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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/termination-memory-alloca/array01-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash edc22a27a339ef391e3ea3841daa4645b584cc0ad7185141d6d001b72dd17f19 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 19:52:59,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 19:52:59,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 19:52:59,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 19:52:59,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 19:52:59,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 19:52:59,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 19:52:59,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 19:52:59,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 19:52:59,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 19:52:59,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 19:52:59,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 19:52:59,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 19:52:59,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 19:52:59,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 19:52:59,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 19:52:59,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 19:52:59,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 19:52:59,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 19:52:59,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 19:52:59,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 19:52:59,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 19:52:59,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 19:52:59,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 19:52:59,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 19:52:59,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 19:52:59,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 19:52:59,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 19:52:59,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 19:52:59,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 19:52:59,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 19:52:59,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 19:52:59,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 19:52:59,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 19:52:59,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 19:52:59,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 19:52:59,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 19:52:59,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 19:52:59,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 19:52:59,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 19:52:59,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 19:52:59,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-22 19:52:59,608 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 19:52:59,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 19:52:59,611 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 19:52:59,611 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 19:52:59,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 19:52:59,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 19:52:59,612 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 19:52:59,612 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 19:52:59,612 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 19:52:59,612 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 19:52:59,613 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 19:52:59,613 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 19:52:59,613 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 19:52:59,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 19:52:59,614 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 19:52:59,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 19:52:59,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 19:52:59,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 19:52:59,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 19:52:59,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 19:52:59,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 19:52:59,614 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 19:52:59,615 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 19:52:59,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 19:52:59,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 19:52:59,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 19:52:59,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 19:52:59,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 19:52:59,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 19:52:59,617 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 19:52:59,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edc22a27a339ef391e3ea3841daa4645b584cc0ad7185141d6d001b72dd17f19 [2021-12-22 19:52:59,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 19:52:59,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 19:52:59,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 19:52:59,830 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 19:52:59,831 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 19:52:59,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/array01-alloca-1.i [2021-12-22 19:52:59,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d1e6217/6c3fc457ffd04d4caae461ff43727bf9/FLAG597bfc6af [2021-12-22 19:53:00,210 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 19:53:00,211 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/array01-alloca-1.i [2021-12-22 19:53:00,219 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d1e6217/6c3fc457ffd04d4caae461ff43727bf9/FLAG597bfc6af [2021-12-22 19:53:00,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22d1e6217/6c3fc457ffd04d4caae461ff43727bf9 [2021-12-22 19:53:00,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 19:53:00,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 19:53:00,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 19:53:00,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 19:53:00,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 19:53:00,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:53:00" (1/1) ... [2021-12-22 19:53:00,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a74f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:53:00, skipping insertion in model container [2021-12-22 19:53:00,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:53:00" (1/1) ... [2021-12-22 19:53:00,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 19:53:00,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 19:53:00,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:53:00,864 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 19:53:00,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:53:00,912 INFO L208 MainTranslator]: Completed translation [2021-12-22 19:53:00,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:53:00 WrapperNode [2021-12-22 19:53:00,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 19:53:00,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 19:53:00,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 19:53:00,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 19:53:00,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:53:00" (1/1) ... [2021-12-22 19:53:00,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:53:00" (1/1) ... [2021-12-22 19:53:00,949 INFO L137 Inliner]: procedures = 111, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2021-12-22 19:53:00,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 19:53:00,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 19:53:00,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 19:53:00,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 19:53:00,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:53:00" (1/1) ... [2021-12-22 19:53:00,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:53:00" (1/1) ... [2021-12-22 19:53:00,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:53:00" (1/1) ... [2021-12-22 19:53:00,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:53:00" (1/1) ... [2021-12-22 19:53:00,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:53:00" (1/1) ... [2021-12-22 19:53:00,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:53:00" (1/1) ... [2021-12-22 19:53:00,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:53:00" (1/1) ... [2021-12-22 19:53:00,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 19:53:00,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 19:53:00,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 19:53:00,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 19:53:00,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:53:00" (1/1) ... [2021-12-22 19:53:00,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:53:00,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:53:01,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:53:01,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-22 19:53:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 19:53:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 19:53:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 19:53:01,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 19:53:01,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 19:53:01,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 19:53:01,112 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 19:53:01,113 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 19:53:01,206 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 19:53:01,210 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 19:53:01,210 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-22 19:53:01,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:53:01 BoogieIcfgContainer [2021-12-22 19:53:01,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 19:53:01,212 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 19:53:01,212 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 19:53:01,214 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 19:53:01,215 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:53:01,215 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 07:53:00" (1/3) ... [2021-12-22 19:53:01,216 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c9f21f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 07:53:01, skipping insertion in model container [2021-12-22 19:53:01,216 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:53:01,216 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:53:00" (2/3) ... [2021-12-22 19:53:01,217 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c9f21f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 07:53:01, skipping insertion in model container [2021-12-22 19:53:01,217 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:53:01,217 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:53:01" (3/3) ... [2021-12-22 19:53:01,218 INFO L388 chiAutomizerObserver]: Analyzing ICFG array01-alloca-1.i [2021-12-22 19:53:01,247 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 19:53:01,247 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 19:53:01,247 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 19:53:01,247 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 19:53:01,247 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 19:53:01,247 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 19:53:01,248 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 19:53:01,248 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 19:53:01,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:53:01,268 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-22 19:53:01,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:53:01,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:53:01,272 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-22 19:53:01,272 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-22 19:53:01,272 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 19:53:01,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:53:01,274 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-22 19:53:01,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:53:01,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:53:01,274 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-22 19:53:01,274 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-22 19:53:01,279 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~1#1, main_#t~ret11#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 5#L561true assume !(main_~array_size~0#1 < 1); 8#L561-2true call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~1#1 := 0; 12#L565-3true [2021-12-22 19:53:01,279 INFO L793 eck$LassoCheckResult]: Loop: 12#L565-3true assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet10#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet10#1; 14#L565-2true main_#t~post9#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 12#L565-3true [2021-12-22 19:53:01,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:53:01,283 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-12-22 19:53:01,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:53:01,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560159439] [2021-12-22 19:53:01,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:53:01,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:53:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:01,349 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:53:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:01,381 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:53:01,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:53:01,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2021-12-22 19:53:01,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:53:01,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832315058] [2021-12-22 19:53:01,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:53:01,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:53:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:01,416 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:53:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:01,426 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:53:01,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:53:01,430 INFO L85 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2021-12-22 19:53:01,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:53:01,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458399323] [2021-12-22 19:53:01,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:53:01,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:53:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:01,466 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:53:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:01,490 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:53:01,713 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:53:01,714 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:53:01,714 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:53:01,714 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:53:01,714 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:53:01,714 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:53:01,714 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:53:01,715 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:53:01,715 INFO L133 ssoRankerPreferences]: Filename of dumped script: array01-alloca-1.i_Iteration1_Lasso [2021-12-22 19:53:01,715 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:53:01,716 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:53:01,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:01,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:01,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:01,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:01,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:01,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:01,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:01,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:01,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:01,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:02,016 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:53:02,018 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 19:53:02,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:53:02,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:53:02,021 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:53:02,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-22 19:53:02,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:53:02,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:53:02,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:53:02,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:53:02,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:53:02,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:53:02,033 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:53:02,033 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:53:02,048 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:53:02,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-22 19:53:02,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:53:02,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:53:02,067 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:53:02,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-22 19:53:02,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:53:02,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:53:02,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:53:02,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:53:02,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:53:02,086 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:53:02,086 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:53:02,103 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:53:02,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-22 19:53:02,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:53:02,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:53:02,124 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:53:02,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-22 19:53:02,129 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:53:02,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:53:02,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:53:02,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:53:02,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:53:02,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:53:02,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:53:02,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:53:02,148 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:53:02,164 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 [2021-12-22 19:53:02,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:53:02,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:53:02,166 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:53:02,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-22 19:53:02,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:53:02,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:53:02,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:53:02,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:53:02,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:53:02,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:53:02,178 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:53:02,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:53:02,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-22 19:53:02,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:53:02,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:53:02,208 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:53:02,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-22 19:53:02,211 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:53:02,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:53:02,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:53:02,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:53:02,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:53:02,220 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:53:02,220 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:53:02,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:53:02,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-22 19:53:02,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:53:02,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:53:02,264 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:53:02,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-22 19:53:02,267 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:53:02,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:53:02,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:53:02,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:53:02,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:53:02,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:53:02,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:53:02,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:53:02,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:53:02,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-22 19:53:02,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:53:02,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:53:02,308 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:53:02,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-22 19:53:02,310 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:53:02,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:53:02,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:53:02,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:53:02,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:53:02,323 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:53:02,323 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:53:02,339 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 19:53:02,358 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-12-22 19:53:02,359 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 14 variables to zero. [2021-12-22 19:53:02,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:53:02,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:53:02,365 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:53:02,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-22 19:53:02,432 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 19:53:02,452 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-22 19:53:02,453 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 19:53:02,453 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, v_rep(select #length ULTIMATE.start_main_~numbers~0#1.base)_1) = -4*ULTIMATE.start_main_~i~1#1 + 1*v_rep(select #length ULTIMATE.start_main_~numbers~0#1.base)_1 Supporting invariants [1*ULTIMATE.start_main_~numbers~0#1.offset >= 0] [2021-12-22 19:53:02,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-22 19:53:02,496 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2021-12-22 19:53:02,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:53:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:53:02,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 19:53:02,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:53:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:53:02,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-22 19:53:02,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:53:02,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:53:02,629 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-22 19:53:02,630 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:53:02,681 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 53 transitions. Complement of second has 7 states. [2021-12-22 19:53:02,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-22 19:53:02,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:53:02,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2021-12-22 19:53:02,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-22 19:53:02,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:53:02,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-22 19:53:02,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:53:02,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 4 letters. Loop has 4 letters. [2021-12-22 19:53:02,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:53:02,688 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 53 transitions. [2021-12-22 19:53:02,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-22 19:53:02,692 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 12 states and 16 transitions. [2021-12-22 19:53:02,692 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-22 19:53:02,692 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-22 19:53:02,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-12-22 19:53:02,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 19:53:02,693 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-22 19:53:02,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-12-22 19:53:02,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-22 19:53:02,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:53:02,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-12-22 19:53:02,709 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-22 19:53:02,709 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-22 19:53:02,709 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 19:53:02,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-12-22 19:53:02,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-22 19:53:02,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:53:02,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:53:02,710 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-22 19:53:02,710 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-22 19:53:02,711 INFO L791 eck$LassoCheckResult]: Stem: 122#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 123#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~1#1, main_#t~ret11#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 124#L561 assume !(main_~array_size~0#1 < 1); 125#L561-2 call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~1#1 := 0; 126#L565-3 assume !(main_~i~1#1 < main_~array_size~0#1); 128#L565-4 assume { :begin_inline_test_fun } true;test_fun_#in~a#1.base, test_fun_#in~a#1.offset, test_fun_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc test_fun_#res#1;havoc test_fun_#t~mem4#1, test_fun_#t~post5#1, test_fun_#t~post6#1, test_fun_#t~mem3#1, test_fun_#t~post2#1, test_fun_~a#1.base, test_fun_~a#1.offset, test_fun_~N#1, test_fun_~i~0#1, test_fun_~res~0#1;test_fun_~a#1.base, test_fun_~a#1.offset := test_fun_#in~a#1.base, test_fun_#in~a#1.offset;test_fun_~N#1 := test_fun_#in~N#1;havoc test_fun_~i~0#1;test_fun_~res~0#1 := 0;test_fun_~i~0#1 := 0; 131#L551-3 [2021-12-22 19:53:02,711 INFO L793 eck$LassoCheckResult]: Loop: 131#L551-3 assume !!(test_fun_~i~0#1 < test_fun_~N#1); 120#L552-3 call test_fun_#t~mem3#1 := read~int(test_fun_~a#1.base, test_fun_~a#1.offset + 4 * test_fun_~i~0#1, 4); 121#L552-1 assume !(test_fun_#t~mem3#1 > 0);havoc test_fun_#t~mem3#1; 130#L551-2 test_fun_#t~post2#1 := test_fun_~i~0#1;test_fun_~i~0#1 := 1 + test_fun_#t~post2#1;havoc test_fun_#t~post2#1; 131#L551-3 [2021-12-22 19:53:02,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:53:02,711 INFO L85 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2021-12-22 19:53:02,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:53:02,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498949187] [2021-12-22 19:53:02,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:53:02,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:53:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:53:02,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:53:02,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:53:02,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498949187] [2021-12-22 19:53:02,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498949187] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 19:53:02,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 19:53:02,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 19:53:02,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649952769] [2021-12-22 19:53:02,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 19:53:02,790 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-22 19:53:02,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:53:02,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1882892, now seen corresponding path program 1 times [2021-12-22 19:53:02,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:53:02,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080478472] [2021-12-22 19:53:02,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:53:02,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:53:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:02,795 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:53:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:02,798 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:53:02,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:53:02,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 19:53:02,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 19:53:02,842 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:53:02,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:53:02,861 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2021-12-22 19:53:02,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 19:53:02,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2021-12-22 19:53:02,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-22 19:53:02,865 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2021-12-22 19:53:02,865 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-22 19:53:02,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-22 19:53:02,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2021-12-22 19:53:02,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 19:53:02,865 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-12-22 19:53:02,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2021-12-22 19:53:02,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-12-22 19:53:02,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:53:02,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-12-22 19:53:02,867 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-22 19:53:02,867 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-22 19:53:02,867 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-22 19:53:02,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-12-22 19:53:02,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-22 19:53:02,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:53:02,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:53:02,868 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:53:02,868 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-22 19:53:02,868 INFO L791 eck$LassoCheckResult]: Stem: 152#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 153#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~1#1, main_#t~ret11#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 154#L561 assume !(main_~array_size~0#1 < 1); 155#L561-2 call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~1#1 := 0; 156#L565-3 assume !!(main_~i~1#1 < main_~array_size~0#1);call write~int(main_#t~nondet10#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~nondet10#1; 157#L565-2 main_#t~post9#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 158#L565-3 assume !(main_~i~1#1 < main_~array_size~0#1); 159#L565-4 assume { :begin_inline_test_fun } true;test_fun_#in~a#1.base, test_fun_#in~a#1.offset, test_fun_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc test_fun_#res#1;havoc test_fun_#t~mem4#1, test_fun_#t~post5#1, test_fun_#t~post6#1, test_fun_#t~mem3#1, test_fun_#t~post2#1, test_fun_~a#1.base, test_fun_~a#1.offset, test_fun_~N#1, test_fun_~i~0#1, test_fun_~res~0#1;test_fun_~a#1.base, test_fun_~a#1.offset := test_fun_#in~a#1.base, test_fun_#in~a#1.offset;test_fun_~N#1 := test_fun_#in~N#1;havoc test_fun_~i~0#1;test_fun_~res~0#1 := 0;test_fun_~i~0#1 := 0; 163#L551-3 [2021-12-22 19:53:02,868 INFO L793 eck$LassoCheckResult]: Loop: 163#L551-3 assume !!(test_fun_~i~0#1 < test_fun_~N#1); 160#L552-3 call test_fun_#t~mem3#1 := read~int(test_fun_~a#1.base, test_fun_~a#1.offset + 4 * test_fun_~i~0#1, 4); 161#L552-1 assume !(test_fun_#t~mem3#1 > 0);havoc test_fun_#t~mem3#1; 162#L551-2 test_fun_#t~post2#1 := test_fun_~i~0#1;test_fun_~i~0#1 := 1 + test_fun_#t~post2#1;havoc test_fun_#t~post2#1; 163#L551-3 [2021-12-22 19:53:02,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:53:02,869 INFO L85 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2021-12-22 19:53:02,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:53:02,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694407809] [2021-12-22 19:53:02,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:53:02,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:53:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:02,918 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:53:02,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-22 19:53:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:02,955 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:53:02,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:53:02,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1882892, now seen corresponding path program 2 times [2021-12-22 19:53:02,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:53:02,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641215115] [2021-12-22 19:53:02,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:53:02,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:53:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:02,959 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:53:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:02,962 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:53:02,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:53:02,962 INFO L85 PathProgramCache]: Analyzing trace with hash -357810950, now seen corresponding path program 1 times [2021-12-22 19:53:02,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:53:02,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123101381] [2021-12-22 19:53:02,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:53:02,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:53:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:02,984 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:53:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:53:02,996 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:53:03,274 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:53:03,274 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:53:03,274 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:53:03,274 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:53:03,274 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:53:03,274 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:53:03,275 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:53:03,275 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:53:03,275 INFO L133 ssoRankerPreferences]: Filename of dumped script: array01-alloca-1.i_Iteration3_Lasso [2021-12-22 19:53:03,275 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:53:03,275 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:53:03,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:03,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:03,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:03,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:03,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:03,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:53:03,310 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:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) 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) [2021-12-22 19:53:03,317 INFO L158 Benchmark]: Toolchain (without parser) took 2696.66ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 83.0MB in the beginning and 86.6MB in the end (delta: -3.5MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2021-12-22 19:53:03,320 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory was 66.4MB in the beginning and 66.3MB in the end (delta: 44.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:53:03,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.80ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 82.8MB in the beginning and 116.2MB in the end (delta: -33.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 19:53:03,322 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.40ms. Allocated memory is still 144.7MB. Free memory was 116.2MB in the beginning and 114.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:53:03,322 INFO L158 Benchmark]: Boogie Preprocessor took 26.85ms. Allocated memory is still 144.7MB. Free memory was 114.3MB in the beginning and 113.0MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 19:53:03,322 INFO L158 Benchmark]: RCFGBuilder took 234.34ms. Allocated memory is still 144.7MB. Free memory was 113.0MB in the beginning and 103.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 19:53:03,324 INFO L158 Benchmark]: BuchiAutomizer took 2103.40ms. Allocated memory is still 144.7MB. Free memory was 102.9MB in the beginning and 86.6MB in the end (delta: 16.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2021-12-22 19:53:03,328 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 109.1MB. Free memory was 66.4MB in the beginning and 66.3MB in the end (delta: 44.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.80ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 82.8MB in the beginning and 116.2MB in the end (delta: -33.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.40ms. Allocated memory is still 144.7MB. Free memory was 116.2MB in the beginning and 114.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.85ms. Allocated memory is still 144.7MB. Free memory was 114.3MB in the beginning and 113.0MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 234.34ms. Allocated memory is still 144.7MB. Free memory was 113.0MB in the beginning and 103.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2103.40ms. Allocated memory is still 144.7MB. Free memory was 102.9MB in the beginning and 86.6MB in the end (delta: 16.3MB). Peak memory consumption was 17.4MB. 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. [2021-12-22 19:53:03,369 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*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalArgumentException: null