./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/array03-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/array03-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 987435cc8130e848f1b087d0b65ab8d71c3dfa3c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:45:39,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:45:39,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:45:39,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:45:39,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:45:39,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:45:39,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:45:39,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:45:39,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:45:39,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:45:39,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:45:39,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:45:39,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:45:39,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:45:39,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:45:39,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:45:39,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:45:39,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:45:39,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:45:39,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:45:39,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:45:39,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:45:39,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:45:39,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:45:39,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:45:39,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:45:39,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:45:39,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:45:39,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:45:39,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:45:39,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:45:39,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:45:39,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:45:39,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:45:39,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:45:39,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:45:39,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:45:39,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:45:39,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:45:39,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:45:39,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:45:39,816 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:45:39,861 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:45:39,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:45:39,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:45:39,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:45:39,864 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:45:39,864 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:45:39,865 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:45:39,865 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:45:39,865 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:45:39,865 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:45:39,866 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:45:39,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:45:39,867 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:45:39,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:45:39,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:45:39,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:45:39,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:45:39,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:45:39,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:45:39,869 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:45:39,870 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:45:39,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:45:39,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:45:39,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:45:39,871 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:45:39,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:45:39,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:45:39,872 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:45:39,872 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:45:39,874 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:45:39,874 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> 987435cc8130e848f1b087d0b65ab8d71c3dfa3c [2020-10-19 18:45:40,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:45:40,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:45:40,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:45:40,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:45:40,282 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:45:40,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/array03-alloca-1.i [2020-10-19 18:45:40,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fe12b249/0187cbb660b84e0788e01ad10e0d3d4f/FLAGc0850db37 [2020-10-19 18:45:40,880 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:45:40,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/array03-alloca-1.i [2020-10-19 18:45:40,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fe12b249/0187cbb660b84e0788e01ad10e0d3d4f/FLAGc0850db37 [2020-10-19 18:45:41,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fe12b249/0187cbb660b84e0788e01ad10e0d3d4f [2020-10-19 18:45:41,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:45:41,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:45:41,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:45:41,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:45:41,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:45:41,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:45:41" (1/1) ... [2020-10-19 18:45:41,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79aa5368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:45:41, skipping insertion in model container [2020-10-19 18:45:41,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:45:41" (1/1) ... [2020-10-19 18:45:41,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:45:41,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:45:41,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:45:41,711 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:45:41,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:45:41,798 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:45:41,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:45:41 WrapperNode [2020-10-19 18:45:41,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:45:41,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:45:41,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:45:41,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:45:41,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:45:41" (1/1) ... [2020-10-19 18:45:41,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:45:41" (1/1) ... [2020-10-19 18:45:41,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:45:41,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:45:41,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:45:41,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:45:41,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:45:41" (1/1) ... [2020-10-19 18:45:41,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:45:41" (1/1) ... [2020-10-19 18:45:41,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:45:41" (1/1) ... [2020-10-19 18:45:41,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:45:41" (1/1) ... [2020-10-19 18:45:41,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:45:41" (1/1) ... [2020-10-19 18:45:41,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:45:41" (1/1) ... [2020-10-19 18:45:41,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:45:41" (1/1) ... [2020-10-19 18:45:41,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:45:41,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:45:41,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:45:41,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:45:41,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:45:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:45:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:45:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:45:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:45:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:45:41,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:45:42,271 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:45:42,272 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-19 18:45:42,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:45:42 BoogieIcfgContainer [2020-10-19 18:45:42,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:45:42,276 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:45:42,276 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:45:42,280 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:45:42,281 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:45:42,281 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:45:41" (1/3) ... [2020-10-19 18:45:42,283 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cbfb2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:45:42, skipping insertion in model container [2020-10-19 18:45:42,283 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:45:42,283 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:45:41" (2/3) ... [2020-10-19 18:45:42,284 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cbfb2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:45:42, skipping insertion in model container [2020-10-19 18:45:42,284 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:45:42,284 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:45:42" (3/3) ... [2020-10-19 18:45:42,286 INFO L373 chiAutomizerObserver]: Analyzing ICFG array03-alloca-1.i [2020-10-19 18:45:42,339 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:45:42,340 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:45:42,340 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:45:42,340 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:45:42,340 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:45:42,341 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:45:42,341 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:45:42,341 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:45:42,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-19 18:45:42,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-10-19 18:45:42,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:45:42,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:45:42,389 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 18:45:42,389 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 18:45:42,390 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:45:42,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-19 18:45:42,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-10-19 18:45:42,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:45:42,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:45:42,392 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 18:45:42,393 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 18:45:42,401 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 6#L567true assume !(main_~array_size~0 < 1); 10#L567-2true call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 3#L551-3true [2020-10-19 18:45:42,402 INFO L796 eck$LassoCheckResult]: Loop: 3#L551-3true assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 13#L553true assume 0 == test_fun_#t~mem3;havoc test_fun_#t~mem3;test_fun_~res~0 := 1; 7#L558-2true assume !true; 9#L558-3true call write~int(test_fun_~res~0, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 17#L551-2true test_fun_#t~post2 := test_fun_~i~0;test_fun_~i~0 := 1 + test_fun_#t~post2;havoc test_fun_#t~post2; 3#L551-3true [2020-10-19 18:45:42,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:42,407 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-10-19 18:45:42,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:42,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610272688] [2020-10-19 18:45:42,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:42,520 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:42,533 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:42,554 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:42,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:42,555 INFO L82 PathProgramCache]: Analyzing trace with hash 44963621, now seen corresponding path program 1 times [2020-10-19 18:45:42,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:42,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161529538] [2020-10-19 18:45:42,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:42,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:45:42,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161529538] [2020-10-19 18:45:42,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:45:42,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:45:42,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623346362] [2020-10-19 18:45:42,629 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 18:45:42,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:45:42,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-19 18:45:42,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 18:45:42,649 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-10-19 18:45:42,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:45:42,656 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2020-10-19 18:45:42,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 18:45:42,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2020-10-19 18:45:42,659 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-10-19 18:45:42,663 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2020-10-19 18:45:42,664 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-19 18:45:42,664 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-19 18:45:42,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2020-10-19 18:45:42,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:45:42,666 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-10-19 18:45:42,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2020-10-19 18:45:42,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-19 18:45:42,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-19 18:45:42,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2020-10-19 18:45:42,691 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-10-19 18:45:42,691 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-10-19 18:45:42,691 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:45:42,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2020-10-19 18:45:42,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-10-19 18:45:42,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:45:42,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:45:42,693 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 18:45:42,693 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-19 18:45:42,693 INFO L794 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 38#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 39#L567 assume !(main_~array_size~0 < 1); 47#L567-2 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 40#L551-3 [2020-10-19 18:45:42,694 INFO L796 eck$LassoCheckResult]: Loop: 40#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 41#L553 assume 0 == test_fun_#t~mem3;havoc test_fun_#t~mem3;test_fun_~res~0 := 1; 42#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 44#L558 assume !(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5; 45#L558-3 call write~int(test_fun_~res~0, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 48#L551-2 test_fun_#t~post2 := test_fun_~i~0;test_fun_~i~0 := 1 + test_fun_#t~post2;havoc test_fun_#t~post2; 40#L551-3 [2020-10-19 18:45:42,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:42,694 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 2 times [2020-10-19 18:45:42,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:42,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40794509] [2020-10-19 18:45:42,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:42,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:42,714 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:42,718 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:42,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:42,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1393657929, now seen corresponding path program 1 times [2020-10-19 18:45:42,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:42,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903853317] [2020-10-19 18:45:42,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:42,734 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:42,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:42,751 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:42,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:42,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1898369747, now seen corresponding path program 1 times [2020-10-19 18:45:42,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:42,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026970819] [2020-10-19 18:45:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:42,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:42,788 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:42,794 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:42,913 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-10-19 18:45:43,094 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-19 18:45:43,171 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:45:43,172 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:45:43,173 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:45:43,173 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:45:43,173 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:45:43,173 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:43,173 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:45:43,174 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:45:43,174 INFO L133 ssoRankerPreferences]: Filename of dumped script: array03-alloca-1.i_Iteration2_Lasso [2020-10-19 18:45:43,174 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:45:43,174 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:45:43,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,385 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-10-19 18:45:43,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:43,792 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:45:43,799 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:45:43,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:43,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:43,809 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:43,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:43,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:43,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:43,813 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:43,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:43,817 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:43,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:43,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:43,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:43,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:43,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:43,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:43,868 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:43,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:45:43,870 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:45:43,918 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:43,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:43,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:43,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:43,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:43,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:43,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:43,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:43,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:45:43,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:43,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:43,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:43,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:43,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:43,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:43,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:43,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:43,978 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:45:44,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:44,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:44,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:44,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:44,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:44,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:45:44,031 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:44,035 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:44,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:44,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:44,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:44,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:44,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:44,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:44,068 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:44,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:45:44,070 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:45:44,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:44,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:44,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:44,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:44,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:44,111 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:45:44,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:45:44,116 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:45:44,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:44,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:44,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:44,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:44,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:44,169 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:45:44,170 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:44,174 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:44,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:44,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:44,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:44,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:44,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:44,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:44,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:44,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:45:44,210 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:44,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:44,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:44,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:44,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:44,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:44,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:44,237 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:44,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:45:44,240 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:44,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:44,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:44,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:44,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:44,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:44,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:44,268 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:44,268 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:45:44,271 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:44,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:44,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:44,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:44,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:44,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:44,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:44,298 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:44,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:45:44,300 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:44,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:44,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:44,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:44,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:44,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:44,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:45:44,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:45:44,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:44,394 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:44,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:44,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:44,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:44,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:44,402 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:45:44,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:45:44,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:44,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:44,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:44,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:44,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:44,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:44,458 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:45:44,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:45:44,476 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:45:44,594 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-10-19 18:45:44,594 INFO L444 ModelExtractionUtils]: 21 out of 34 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:45:44,642 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:44,647 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 18:45:44,647 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:45:44,649 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_1, ULTIMATE.start_test_fun_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_1 - 4*ULTIMATE.start_test_fun_~i~0 Supporting invariants [1*ULTIMATE.start_test_fun_~a.offset >= 0] [2020-10-19 18:45:44,702 INFO L297 tatePredicateManager]: 2 out of 4 supporting invariants were superfluous and have been removed [2020-10-19 18:45:44,716 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 18:45:44,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:44,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 18:45:44,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:45:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:44,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:45:44,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:45:44,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:45:44,866 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 [2020-10-19 18:45:44,867 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-10-19 18:45:44,970 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 18 states and 26 transitions. Complement of second has 4 states. [2020-10-19 18:45:44,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:45:44,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:45:44,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2020-10-19 18:45:44,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2020-10-19 18:45:44,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:45:44,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-19 18:45:44,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:45:44,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 4 letters. Loop has 12 letters. [2020-10-19 18:45:44,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:45:44,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 26 transitions. [2020-10-19 18:45:44,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:45:44,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 24 transitions. [2020-10-19 18:45:44,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-10-19 18:45:44,990 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-10-19 18:45:44,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 24 transitions. [2020-10-19 18:45:44,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:45:44,991 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2020-10-19 18:45:44,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 24 transitions. [2020-10-19 18:45:44,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-19 18:45:44,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-19 18:45:44,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 24 transitions. [2020-10-19 18:45:44,995 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2020-10-19 18:45:44,997 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2020-10-19 18:45:44,997 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 18:45:44,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 24 transitions. [2020-10-19 18:45:45,001 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:45:45,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:45:45,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:45:45,006 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-19 18:45:45,006 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:45:45,007 INFO L794 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 142#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 143#L567 assume !(main_~array_size~0 < 1); 152#L567-2 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 138#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 140#L553 assume 0 == test_fun_#t~mem3;havoc test_fun_#t~mem3;test_fun_~res~0 := 1; 144#L558-2 [2020-10-19 18:45:45,007 INFO L796 eck$LassoCheckResult]: Loop: 144#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 148#L558 assume !!(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5;call test_fun_#t~mem6 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_~res~0 := test_fun_~res~0 * test_fun_#t~mem6;havoc test_fun_#t~mem6;call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post8 := test_fun_#t~mem7;call write~int(test_fun_#t~post8 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~post8;havoc test_fun_#t~mem7; 144#L558-2 [2020-10-19 18:45:45,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:45,008 INFO L82 PathProgramCache]: Analyzing trace with hash 889568456, now seen corresponding path program 1 times [2020-10-19 18:45:45,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:45,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957050832] [2020-10-19 18:45:45,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:45,050 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:45,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:45,082 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:45,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:45,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 1 times [2020-10-19 18:45:45,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:45,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084714421] [2020-10-19 18:45:45,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:45,097 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:45:45,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563426032] [2020-10-19 18:45:45,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:45:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:45,174 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:45,181 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:45,194 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:45,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:45,195 INFO L82 PathProgramCache]: Analyzing trace with hash 176795341, now seen corresponding path program 1 times [2020-10-19 18:45:45,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:45,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862348965] [2020-10-19 18:45:45,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:45,228 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:45:45,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907776272] [2020-10-19 18:45:45,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:45:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:45,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:45:45,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:45:45,393 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2020-10-19 18:45:45,395 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:45:45,398 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:45:45,399 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:45:45,399 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:3 [2020-10-19 18:45:45,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:45:45,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862348965] [2020-10-19 18:45:45,406 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-19 18:45:45,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907776272] [2020-10-19 18:45:45,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:45:45,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:45:45,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665920897] [2020-10-19 18:45:45,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:45:45,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:45:45,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:45:45,446 INFO L87 Difference]: Start difference. First operand 16 states and 24 transitions. cyclomatic complexity: 10 Second operand 5 states. [2020-10-19 18:45:45,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:45:45,510 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2020-10-19 18:45:45,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:45:45,511 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2020-10-19 18:45:45,512 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:45:45,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 19 states and 26 transitions. [2020-10-19 18:45:45,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-19 18:45:45,513 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-10-19 18:45:45,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2020-10-19 18:45:45,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:45:45,513 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-10-19 18:45:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2020-10-19 18:45:45,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-10-19 18:45:45,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-19 18:45:45,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2020-10-19 18:45:45,516 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-19 18:45:45,516 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-19 18:45:45,516 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 18:45:45,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2020-10-19 18:45:45,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:45:45,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:45:45,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:45:45,518 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:45:45,519 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:45:45,519 INFO L794 eck$LassoCheckResult]: Stem: 221#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 212#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 213#L567 assume !(main_~array_size~0 < 1); 222#L567-2 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 208#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 210#L553 assume !(0 == test_fun_#t~mem3);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 214#L555 assume !(test_fun_#t~mem4 < 0);havoc test_fun_#t~mem4; 218#L558-2 [2020-10-19 18:45:45,519 INFO L796 eck$LassoCheckResult]: Loop: 218#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 217#L558 assume !!(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5;call test_fun_#t~mem6 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_~res~0 := test_fun_~res~0 * test_fun_#t~mem6;havoc test_fun_#t~mem6;call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post8 := test_fun_#t~mem7;call write~int(test_fun_#t~post8 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~post8;havoc test_fun_#t~mem7; 218#L558-2 [2020-10-19 18:45:45,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:45,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1806818449, now seen corresponding path program 1 times [2020-10-19 18:45:45,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:45,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693195491] [2020-10-19 18:45:45,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:45,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:45,539 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:45,543 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:45,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:45,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 2 times [2020-10-19 18:45:45,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:45,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184875588] [2020-10-19 18:45:45,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:45,548 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:45:45,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041923363] [2020-10-19 18:45:45,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-10-19 18:45:45,582 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 18:45:45,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-10-19 18:45:45,582 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:45:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:45,586 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:45,589 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:45,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:45,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1185742934, now seen corresponding path program 1 times [2020-10-19 18:45:45,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:45,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653096713] [2020-10-19 18:45:45,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:45,599 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:45:45,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41830997] [2020-10-19 18:45:45,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:45:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:45,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:45,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:45,669 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:45,871 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2020-10-19 18:45:45,935 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:45:45,935 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:45:45,935 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:45:45,935 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:45:45,935 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:45:45,936 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:45,936 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:45:45,936 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:45:45,936 INFO L133 ssoRankerPreferences]: Filename of dumped script: array03-alloca-1.i_Iteration4_Lasso [2020-10-19 18:45:45,936 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:45:45,936 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:45:45,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:45,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:45,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:45,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:45,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:45,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:46,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:46,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:46,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:46,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:46,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:46,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:46,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:46,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:46,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:46,407 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:45:46,407 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:45:46,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:46,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:46,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:46,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:46,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:46,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:46,424 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:46,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:46,426 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:46,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:46,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:46,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:46,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:46,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:46,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:46,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:46,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:45:46,474 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:46,496 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:46,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:46,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:46,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:46,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:46,499 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:45:46,500 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:45:46,505 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:45:46,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:46,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:46,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:46,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:46,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:46,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:46,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:46,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:46,561 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:45:46,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:46,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:46,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:46,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:46,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:46,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:46,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:46,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:46,605 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:45:46,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:46,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:46,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:46,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:46,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:46,647 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:45:46,647 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:46,655 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:45:46,669 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 18:45:46,670 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:45:46,673 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:46,676 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:45:46,676 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:45:46,677 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ (* ULTIMATE.start_test_fun_~i~0 4) ULTIMATE.start_test_fun_~a.offset))_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ (* ULTIMATE.start_test_fun_~i~0 4) ULTIMATE.start_test_fun_~a.offset))_2 Supporting invariants [] [2020-10-19 18:45:46,718 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-10-19 18:45:46,720 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-19 18:45:46,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:46,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:45:46,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:45:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:46,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:45:46,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:45:46,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:45:46,780 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 [2020-10-19 18:45:46,780 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-10-19 18:45:46,812 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 40 states and 54 transitions. Complement of second has 7 states. [2020-10-19 18:45:46,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 18:45:46,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:45:46,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-10-19 18:45:46,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-19 18:45:46,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:45:46,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 9 letters. Loop has 2 letters. [2020-10-19 18:45:46,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:45:46,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-19 18:45:46,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:45:46,817 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 54 transitions. [2020-10-19 18:45:46,823 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 18:45:46,825 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 35 states and 47 transitions. [2020-10-19 18:45:46,826 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-19 18:45:46,826 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-10-19 18:45:46,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 47 transitions. [2020-10-19 18:45:46,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:45:46,828 INFO L691 BuchiCegarLoop]: Abstraction has 35 states and 47 transitions. [2020-10-19 18:45:46,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 47 transitions. [2020-10-19 18:45:46,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2020-10-19 18:45:46,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-19 18:45:46,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2020-10-19 18:45:46,836 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-10-19 18:45:46,836 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-10-19 18:45:46,836 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 18:45:46,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 43 transitions. [2020-10-19 18:45:46,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:45:46,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:45:46,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:45:46,840 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:45:46,840 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:45:46,840 INFO L794 eck$LassoCheckResult]: Stem: 344#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 329#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 330#L567 assume !(main_~array_size~0 < 1); 345#L567-2 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 331#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 333#L553 assume !(0 == test_fun_#t~mem3);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 347#L555 assume test_fun_#t~mem4 < 0;havoc test_fun_#t~mem4;test_fun_~res~0 := 0; 341#L558-2 [2020-10-19 18:45:46,840 INFO L796 eck$LassoCheckResult]: Loop: 341#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 340#L558 assume !!(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5;call test_fun_#t~mem6 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_~res~0 := test_fun_~res~0 * test_fun_#t~mem6;havoc test_fun_#t~mem6;call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post8 := test_fun_#t~mem7;call write~int(test_fun_#t~post8 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~post8;havoc test_fun_#t~mem7; 341#L558-2 [2020-10-19 18:45:46,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:46,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1806818447, now seen corresponding path program 1 times [2020-10-19 18:45:46,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:46,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184346176] [2020-10-19 18:45:46,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:46,856 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:46,865 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:46,869 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:46,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:46,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 3 times [2020-10-19 18:45:46,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:46,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081690980] [2020-10-19 18:45:46,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:46,874 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:45:46,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464876247] [2020-10-19 18:45:46,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-10-19 18:45:46,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2020-10-19 18:45:46,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-10-19 18:45:46,906 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:45:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:46,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:46,914 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:46,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:46,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1185741012, now seen corresponding path program 1 times [2020-10-19 18:45:46,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:46,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78823715] [2020-10-19 18:45:46,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:46,924 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:45:46,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879861653] [2020-10-19 18:45:46,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:45:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:46,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:45:46,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:45:46,987 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 9 [2020-10-19 18:45:46,988 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:45:46,991 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:45:46,991 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:45:46,991 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:25, output treesize:5 [2020-10-19 18:45:46,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:45:46,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78823715] [2020-10-19 18:45:46,998 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-19 18:45:46,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879861653] [2020-10-19 18:45:46,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:45:46,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:45:46,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099714436] [2020-10-19 18:45:47,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:45:47,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:45:47,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:45:47,034 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. cyclomatic complexity: 16 Second operand 5 states. [2020-10-19 18:45:47,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:45:47,080 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2020-10-19 18:45:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:45:47,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 47 transitions. [2020-10-19 18:45:47,082 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:45:47,083 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 41 transitions. [2020-10-19 18:45:47,084 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-19 18:45:47,084 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-10-19 18:45:47,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 41 transitions. [2020-10-19 18:45:47,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:45:47,084 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2020-10-19 18:45:47,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 41 transitions. [2020-10-19 18:45:47,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2020-10-19 18:45:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-19 18:45:47,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2020-10-19 18:45:47,088 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-19 18:45:47,088 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-19 18:45:47,089 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 18:45:47,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2020-10-19 18:45:47,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:45:47,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:45:47,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:45:47,091 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:45:47,091 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:45:47,091 INFO L794 eck$LassoCheckResult]: Stem: 446#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 433#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 434#L567 assume !(main_~array_size~0 < 1); 447#L567-2 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 435#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 436#L553 assume !(0 == test_fun_#t~mem3);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 441#L555 assume !(test_fun_#t~mem4 < 0);havoc test_fun_#t~mem4; 445#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 449#L558 assume !(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5; 457#L558-3 call write~int(test_fun_~res~0, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 456#L551-2 test_fun_#t~post2 := test_fun_~i~0;test_fun_~i~0 := 1 + test_fun_#t~post2;havoc test_fun_#t~post2; 454#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 438#L553 assume !(0 == test_fun_#t~mem3);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 439#L555 assume !(test_fun_#t~mem4 < 0);havoc test_fun_#t~mem4; 443#L558-2 [2020-10-19 18:45:47,091 INFO L796 eck$LassoCheckResult]: Loop: 443#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 442#L558 assume !!(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5;call test_fun_#t~mem6 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_~res~0 := test_fun_~res~0 * test_fun_#t~mem6;havoc test_fun_#t~mem6;call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post8 := test_fun_#t~mem7;call write~int(test_fun_#t~post8 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~post8;havoc test_fun_#t~mem7; 443#L558-2 [2020-10-19 18:45:47,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:47,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1864345184, now seen corresponding path program 1 times [2020-10-19 18:45:47,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:47,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141204525] [2020-10-19 18:45:47,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:47,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:45:47,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141204525] [2020-10-19 18:45:47,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:45:47,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:45:47,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080486071] [2020-10-19 18:45:47,164 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 18:45:47,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:47,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 4 times [2020-10-19 18:45:47,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:47,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940524892] [2020-10-19 18:45:47,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:47,169 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:45:47,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60182215] [2020-10-19 18:45:47,169 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:45:47,196 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-19 18:45:47,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-10-19 18:45:47,197 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:47,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:47,203 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:47,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:45:47,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:45:47,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:45:47,238 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. cyclomatic complexity: 12 Second operand 6 states. [2020-10-19 18:45:47,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:45:47,292 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-10-19 18:45:47,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:45:47,293 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2020-10-19 18:45:47,294 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:45:47,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 33 states and 41 transitions. [2020-10-19 18:45:47,295 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-19 18:45:47,295 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-19 18:45:47,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 41 transitions. [2020-10-19 18:45:47,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:45:47,295 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2020-10-19 18:45:47,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 41 transitions. [2020-10-19 18:45:47,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2020-10-19 18:45:47,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-19 18:45:47,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-10-19 18:45:47,298 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-10-19 18:45:47,299 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-10-19 18:45:47,299 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-19 18:45:47,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 38 transitions. [2020-10-19 18:45:47,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:45:47,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:45:47,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:45:47,300 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:45:47,300 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:45:47,301 INFO L794 eck$LassoCheckResult]: Stem: 519#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 505#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet9;havoc main_#t~nondet9; 506#L567 assume !(main_~array_size~0 < 1); 520#L567-2 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem3, test_fun_#t~mem4, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~post8, test_fun_#t~mem5, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~res~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;havoc test_fun_~res~0;test_fun_~i~0 := 0; 507#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 508#L553 assume !(0 == test_fun_#t~mem3);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 533#L555 assume !(test_fun_#t~mem4 < 0);havoc test_fun_#t~mem4; 521#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 517#L558 assume !!(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5;call test_fun_#t~mem6 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_~res~0 := test_fun_~res~0 * test_fun_#t~mem6;havoc test_fun_#t~mem6;call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post8 := test_fun_#t~mem7;call write~int(test_fun_#t~post8 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~post8;havoc test_fun_#t~mem7; 518#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 528#L558 assume !(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5; 527#L558-3 call write~int(test_fun_~res~0, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 526#L551-2 test_fun_#t~post2 := test_fun_~i~0;test_fun_~i~0 := 1 + test_fun_#t~post2;havoc test_fun_#t~post2; 525#L551-3 assume !!(test_fun_~i~0 < test_fun_~N);test_fun_~res~0 := 1;call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 510#L553 assume !(0 == test_fun_#t~mem3);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 511#L555 assume !(test_fun_#t~mem4 < 0);havoc test_fun_#t~mem4; 516#L558-2 [2020-10-19 18:45:47,301 INFO L796 eck$LassoCheckResult]: Loop: 516#L558-2 call test_fun_#t~mem5 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 515#L558 assume !!(test_fun_#t~mem5 > 0);havoc test_fun_#t~mem5;call test_fun_#t~mem6 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_~res~0 := test_fun_~res~0 * test_fun_#t~mem6;havoc test_fun_#t~mem6;call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post8 := test_fun_#t~mem7;call write~int(test_fun_#t~post8 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~post8;havoc test_fun_#t~mem7; 516#L558-2 [2020-10-19 18:45:47,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:47,301 INFO L82 PathProgramCache]: Analyzing trace with hash 221162235, now seen corresponding path program 1 times [2020-10-19 18:45:47,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:47,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597663382] [2020-10-19 18:45:47,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:47,309 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:45:47,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [417682762] [2020-10-19 18:45:47,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:45:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:47,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:47,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:47,385 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:47,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:47,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1990, now seen corresponding path program 5 times [2020-10-19 18:45:47,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:47,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505375843] [2020-10-19 18:45:47,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:47,390 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:45:47,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972855871] [2020-10-19 18:45:47,391 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:45:47,423 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 18:45:47,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-10-19 18:45:47,424 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:47,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:47,431 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:47,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:47,432 INFO L82 PathProgramCache]: Analyzing trace with hash 2083511360, now seen corresponding path program 2 times [2020-10-19 18:45:47,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:45:47,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704139212] [2020-10-19 18:45:47,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:45:47,440 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:45:47,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [75377489] [2020-10-19 18:45:47,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:45:47,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 18:45:47,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-10-19 18:45:47,491 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:45:47,504 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:45:47,514 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:45:47,985 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 100 [2020-10-19 18:45:48,084 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:45:48,084 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:45:48,084 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:45:48,084 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:45:48,084 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:45:48,084 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:48,085 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:45:48,085 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:45:48,085 INFO L133 ssoRankerPreferences]: Filename of dumped script: array03-alloca-1.i_Iteration7_Lasso [2020-10-19 18:45:48,085 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:45:48,085 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:45:48,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,246 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-10-19 18:45:48,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:45:48,625 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:45:48,625 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:48,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:48,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:48,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:48,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:48,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:48,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:48,632 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:48,632 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:45:48,634 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:48,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:48,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:48,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:45:48,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:48,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:48,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:48,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:45:48,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:45:48,661 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:48,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:48,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:48,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:48,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:48,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:48,686 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:45:48,686 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:45:48,688 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:48,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:48,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:48,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:48,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:48,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:48,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:45:48,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:45:48,729 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:48,758 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:48,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:48,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:48,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:48,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:48,762 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:45:48,763 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:45:48,767 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:48,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:45:48,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:45:48,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:45:48,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:45:48,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:45:48,793 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:45:48,793 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:45:48,800 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:45:48,821 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-19 18:45:48,821 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:45:48,826 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:45:48,829 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:45:48,829 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:45:48,829 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ ULTIMATE.start_test_fun_~a.offset (* ULTIMATE.start_test_fun_~i~0 4)))_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ ULTIMATE.start_test_fun_~a.offset (* ULTIMATE.start_test_fun_~i~0 4)))_1 Supporting invariants [] [2020-10-19 18:45:48,858 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2020-10-19 18:45:48,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-19 18:45:48,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:48,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:45:48,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:45:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:48,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:45:48,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:45:48,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:45:48,924 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 [2020-10-19 18:45:48,924 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-10-19 18:45:48,947 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 35 states and 44 transitions. Complement of second has 7 states. [2020-10-19 18:45:48,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 18:45:48,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:45:48,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2020-10-19 18:45:48,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 2 letters. [2020-10-19 18:45:48,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:45:48,949 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:45:48,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:48,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:45:48,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:45:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:48,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:45:48,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:45:49,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:45:49,002 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 18:45:49,002 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-10-19 18:45:49,027 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 35 states and 44 transitions. Complement of second has 7 states. [2020-10-19 18:45:49,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 18:45:49,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:45:49,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2020-10-19 18:45:49,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 2 letters. [2020-10-19 18:45:49,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:45:49,029 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:45:49,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:45:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:49,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:45:49,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:45:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:45:49,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:45:49,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:45:49,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:45:49,091 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 18:45:49,091 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-10-19 18:45:49,110 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 39 states and 50 transitions. Complement of second has 6 states. [2020-10-19 18:45:49,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 18:45:49,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:45:49,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-10-19 18:45:49,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 16 letters. Loop has 2 letters. [2020-10-19 18:45:49,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:45:49,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 18 letters. Loop has 2 letters. [2020-10-19 18:45:49,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:45:49,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 16 letters. Loop has 4 letters. [2020-10-19 18:45:49,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:45:49,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 50 transitions. [2020-10-19 18:45:49,115 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:45:49,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 0 states and 0 transitions. [2020-10-19 18:45:49,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:45:49,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:45:49,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:45:49,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:45:49,116 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:45:49,117 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:45:49,117 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:45:49,117 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-19 18:45:49,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:45:49,117 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:45:49,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:45:49,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:45:49 BoogieIcfgContainer [2020-10-19 18:45:49,123 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:45:49,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:45:49,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:45:49,124 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:45:49,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:45:42" (3/4) ... [2020-10-19 18:45:49,127 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:45:49,127 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:45:49,129 INFO L168 Benchmark]: Toolchain (without parser) took 7891.29 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 304.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 154.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:45:49,129 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:45:49,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -149.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:45:49,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:45:49,131 INFO L168 Benchmark]: Boogie Preprocessor took 26.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:45:49,131 INFO L168 Benchmark]: RCFGBuilder took 399.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:45:49,132 INFO L168 Benchmark]: BuchiAutomizer took 6847.15 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 192.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -31.9 MB). Peak memory consumption was 160.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:45:49,132 INFO L168 Benchmark]: Witness Printer took 3.68 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:45:49,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 555.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -149.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 399.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6847.15 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 192.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -31.9 MB). Peak memory consumption was 160.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.68 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (array_size * sizeof(int))] + -4 * i and consists of 3 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[a][i * 4 + a] and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[a][a + i * 4] and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.7s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 5.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 14 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 119 SDtfs, 82 SDslu, 68 SDs, 0 SdLazy, 148 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital175 mio100 ax110 hnf98 lsp86 ukn67 mio100 lsp51 div100 bol100 ite100 ukn100 eq180 hnf89 smp100 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...