./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer --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 23c47ba60fd5b5d47afa1439cbedebaab58a1798 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:12:48,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:12:48,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:12:48,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:12:48,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:12:48,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:12:48,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:12:48,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:12:48,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:12:48,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:12:48,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:12:48,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:12:48,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:12:48,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:12:48,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:12:48,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:12:48,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:12:48,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:12:48,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:12:48,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:12:48,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:12:48,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:12:48,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:12:48,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:12:48,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:12:48,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:12:48,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:12:48,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:12:48,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:12:48,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:12:48,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:12:48,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:12:48,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:12:48,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:12:48,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:12:48,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:12:48,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:12:48,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:12:48,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:12:48,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:12:48,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:12:48,827 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 14:12:48,841 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:12:48,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:12:48,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:12:48,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:12:48,843 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:12:48,843 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 14:12:48,843 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 14:12:48,843 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 14:12:48,844 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 14:12:48,844 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 14:12:48,844 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 14:12:48,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:12:48,844 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:12:48,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:12:48,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:12:48,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 14:12:48,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 14:12:48,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 14:12:48,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:12:48,846 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 14:12:48,846 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:12:48,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 14:12:48,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:12:48,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:12:48,847 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 14:12:48,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:12:48,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:12:48,847 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:12:48,847 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 14:12:48,848 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 14:12:48,848 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer 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 -> 23c47ba60fd5b5d47afa1439cbedebaab58a1798 [2019-12-07 14:12:48,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:12:48,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:12:48,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:12:48,965 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:12:48,965 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:12:48,966 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i [2019-12-07 14:12:49,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/data/dbba6f178/ea12d4ec53034dee90cb3f77f4cbda25/FLAG382a230d9 [2019-12-07 14:12:49,455 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:12:49,455 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i [2019-12-07 14:12:49,464 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/data/dbba6f178/ea12d4ec53034dee90cb3f77f4cbda25/FLAG382a230d9 [2019-12-07 14:12:49,476 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/data/dbba6f178/ea12d4ec53034dee90cb3f77f4cbda25 [2019-12-07 14:12:49,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:12:49,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:12:49,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:12:49,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:12:49,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:12:49,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:12:49" (1/1) ... [2019-12-07 14:12:49,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@733d7c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:12:49, skipping insertion in model container [2019-12-07 14:12:49,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:12:49" (1/1) ... [2019-12-07 14:12:49,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:12:49,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:12:49,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:12:49,735 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:12:49,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:12:49,791 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:12:49,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:12:49 WrapperNode [2019-12-07 14:12:49,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:12:49,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:12:49,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:12:49,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:12:49,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:12:49" (1/1) ... [2019-12-07 14:12:49,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:12:49" (1/1) ... [2019-12-07 14:12:49,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:12:49,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:12:49,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:12:49,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:12:49,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:12:49" (1/1) ... [2019-12-07 14:12:49,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:12:49" (1/1) ... [2019-12-07 14:12:49,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:12:49" (1/1) ... [2019-12-07 14:12:49,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:12:49" (1/1) ... [2019-12-07 14:12:49,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:12:49" (1/1) ... [2019-12-07 14:12:49,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:12:49" (1/1) ... [2019-12-07 14:12:49,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:12:49" (1/1) ... [2019-12-07 14:12:49,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:12:49,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:12:49,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:12:49,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:12:49,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:12:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/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 [2019-12-07 14:12:49,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 14:12:49,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 14:12:49,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:12:49,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:12:49,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:12:49,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:12:50,037 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:12:50,038 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 14:12:50,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:12:50 BoogieIcfgContainer [2019-12-07 14:12:50,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:12:50,039 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 14:12:50,039 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 14:12:50,041 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 14:12:50,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:12:50,042 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 02:12:49" (1/3) ... [2019-12-07 14:12:50,042 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@780ed0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:12:50, skipping insertion in model container [2019-12-07 14:12:50,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:12:50,042 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:12:49" (2/3) ... [2019-12-07 14:12:50,043 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@780ed0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:12:50, skipping insertion in model container [2019-12-07 14:12:50,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:12:50,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:12:50" (3/3) ... [2019-12-07 14:12:50,044 INFO L371 chiAutomizerObserver]: Analyzing ICFG mult_array-alloca-2.i [2019-12-07 14:12:50,072 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 14:12:50,072 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 14:12:50,072 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 14:12:50,072 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:12:50,072 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:12:50,072 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 14:12:50,072 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:12:50,073 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 14:12:50,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-12-07 14:12:50,095 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 14:12:50,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:12:50,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:12:50,099 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:12:50,099 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:12:50,100 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 14:12:50,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-12-07 14:12:50,101 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 14:12:50,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:12:50,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:12:50,101 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:12:50,101 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:12:50,106 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 16#L550true assume !(main_~length~0 < 1); 3#L550-2true main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 12#L552true assume !(main_~fac~0 < 1); 17#L552-2true call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 6#L555true assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 10#L556-3true [2019-12-07 14:12:50,106 INFO L796 eck$LassoCheckResult]: Loop: 10#L556-3true assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet7, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet7; 8#L556-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 10#L556-3true [2019-12-07 14:12:50,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:12:50,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815374, now seen corresponding path program 1 times [2019-12-07 14:12:50,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:12:50,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510825330] [2019-12-07 14:12:50,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:12:50,171 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 14:12:50,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [518424637] [2019-12-07 14:12:50,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:12:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:12:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:12:50,236 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:12:50,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:12:50,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2019-12-07 14:12:50,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:12:50,238 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111645051] [2019-12-07 14:12:50,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:12:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:12:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:12:50,263 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:12:50,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:12:50,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787760, now seen corresponding path program 1 times [2019-12-07 14:12:50,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:12:50,265 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681337212] [2019-12-07 14:12:50,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:12:50,271 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 14:12:50,271 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440167083] [2019-12-07 14:12:50,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:12:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:12:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:12:50,317 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:12:50,457 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-12-07 14:12:50,508 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:12:50,509 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:12:50,509 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:12:50,509 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:12:50,509 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:12:50,509 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:12:50,509 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:12:50,509 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:12:50,509 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca-2.i_Iteration1_Lasso [2019-12-07 14:12:50,509 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:12:50,509 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:12:50,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:50,859 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:12:50,862 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:12:50,866 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 [2019-12-07 14:12:50,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:12:50,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:12:50,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:12:50,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:12:50,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:12:50,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:12:50,891 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:12:50,926 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-12-07 14:12:50,926 INFO L444 ModelExtractionUtils]: 8 out of 28 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:12:50,930 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:12:50,932 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 14:12:50,933 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:12:50,933 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2019-12-07 14:12:50,950 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-12-07 14:12:50,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:12:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:12:50,982 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:12:50,983 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:12:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:12:50,993 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:12:50,993 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:12:51,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:12:51,013 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 [2019-12-07 14:12:51,013 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2019-12-07 14:12:51,057 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 35 states and 46 transitions. Complement of second has 7 states. [2019-12-07 14:12:51,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 14:12:51,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 14:12:51,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2019-12-07 14:12:51,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 14:12:51,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:12:51,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 9 letters. Loop has 2 letters. [2019-12-07 14:12:51,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:12:51,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 4 letters. [2019-12-07 14:12:51,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:12:51,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2019-12-07 14:12:51,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:12:51,072 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 13 states and 17 transitions. [2019-12-07 14:12:51,073 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 14:12:51,073 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 14:12:51,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2019-12-07 14:12:51,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:12:51,074 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-12-07 14:12:51,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2019-12-07 14:12:51,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 14:12:51,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 14:12:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2019-12-07 14:12:51,099 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-12-07 14:12:51,099 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-12-07 14:12:51,099 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 14:12:51,099 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2019-12-07 14:12:51,100 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:12:51,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:12:51,100 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:12:51,100 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:12:51,100 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:12:51,100 INFO L794 eck$LassoCheckResult]: Stem: 137#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 129#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 130#L550 assume !(main_~length~0 < 1); 131#L550-2 main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 132#L552 assume !(main_~fac~0 < 1); 139#L552-2 call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 141#L555 assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 133#L556-3 assume !(main_~i~0 < main_~length~0); 134#L556-4 main_~j~0 := 0; 138#L559-3 [2019-12-07 14:12:51,101 INFO L796 eck$LassoCheckResult]: Loop: 138#L559-3 assume !!(main_~j~0 < main_~length~0 * main_~fac~0);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (if main_~i~0 < 0 && 0 != main_~i~0 % main_~length~0 then (if main_~length~0 < 0 then main_~i~0 % main_~length~0 + main_~length~0 else main_~i~0 % main_~length~0 - main_~length~0) else main_~i~0 % main_~length~0), 4);call write~int(main_#t~mem9, main_~arr2~0.base, main_~arr2~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem9; 140#L559-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 138#L559-3 [2019-12-07 14:12:51,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:12:51,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787702, now seen corresponding path program 1 times [2019-12-07 14:12:51,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:12:51,101 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293699384] [2019-12-07 14:12:51,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:12:51,106 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 14:12:51,107 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115097741] [2019-12-07 14:12:51,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:12:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:12:51,136 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 14:12:51,137 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:12:51,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:12:51,153 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293699384] [2019-12-07 14:12:51,153 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 14:12:51,153 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115097741] [2019-12-07 14:12:51,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:12:51,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 14:12:51,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31566942] [2019-12-07 14:12:51,156 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:12:51,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:12:51,156 INFO L82 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 1 times [2019-12-07 14:12:51,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:12:51,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174965744] [2019-12-07 14:12:51,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:12:51,159 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 14:12:51,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1362275913] [2019-12-07 14:12:51,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:12:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:12:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:12:51,189 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:12:51,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:12:51,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:12:51,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:12:51,253 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand 4 states. [2019-12-07 14:12:51,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:12:51,277 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2019-12-07 14:12:51,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:12:51,278 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2019-12-07 14:12:51,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:12:51,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 17 transitions. [2019-12-07 14:12:51,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-12-07 14:12:51,279 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 14:12:51,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2019-12-07 14:12:51,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:12:51,280 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-12-07 14:12:51,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2019-12-07 14:12:51,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-12-07 14:12:51,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 14:12:51,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-12-07 14:12:51,281 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-12-07 14:12:51,281 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-12-07 14:12:51,282 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 14:12:51,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2019-12-07 14:12:51,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:12:51,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:12:51,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:12:51,283 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:12:51,283 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:12:51,283 INFO L794 eck$LassoCheckResult]: Stem: 195#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 187#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 188#L550 assume !(main_~length~0 < 1); 189#L550-2 main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 190#L552 assume !(main_~fac~0 < 1); 196#L552-2 call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 199#L555 assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 191#L556-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet7, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet7; 192#L556-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 193#L556-3 assume !(main_~i~0 < main_~length~0); 194#L556-4 main_~j~0 := 0; 197#L559-3 [2019-12-07 14:12:51,283 INFO L796 eck$LassoCheckResult]: Loop: 197#L559-3 assume !!(main_~j~0 < main_~length~0 * main_~fac~0);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (if main_~i~0 < 0 && 0 != main_~i~0 % main_~length~0 then (if main_~length~0 < 0 then main_~i~0 % main_~length~0 + main_~length~0 else main_~i~0 % main_~length~0 - main_~length~0) else main_~i~0 % main_~length~0), 4);call write~int(main_#t~mem9, main_~arr2~0.base, main_~arr2~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem9; 198#L559-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 197#L559-3 [2019-12-07 14:12:51,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:12:51,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1507295208, now seen corresponding path program 1 times [2019-12-07 14:12:51,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:12:51,284 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136239284] [2019-12-07 14:12:51,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:12:51,287 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 14:12:51,287 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [996449273] [2019-12-07 14:12:51,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:12:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:12:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:12:51,334 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:12:51,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:12:51,335 INFO L82 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 2 times [2019-12-07 14:12:51,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:12:51,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446764046] [2019-12-07 14:12:51,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:12:51,338 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 14:12:51,338 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145390379] [2019-12-07 14:12:51,338 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:12:51,362 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-12-07 14:12:51,362 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 14:12:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:12:51,367 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:12:51,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:12:51,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1106714758, now seen corresponding path program 1 times [2019-12-07 14:12:51,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:12:51,367 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575457960] [2019-12-07 14:12:51,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:12:51,371 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 14:12:51,371 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1019608823] [2019-12-07 14:12:51,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:12:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:12:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:12:51,408 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:12:51,599 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 73 [2019-12-07 14:12:51,662 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:12:51,662 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:12:51,662 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:12:51,662 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:12:51,662 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:12:51,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:12:51,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:12:51,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:12:51,662 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca-2.i_Iteration3_Lasso [2019-12-07 14:12:51,662 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:12:51,663 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:12:51,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:51,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:51,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:51,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:51,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:51,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:51,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:51,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:51,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:51,936 WARN L192 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2019-12-07 14:12:52,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:52,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:52,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:52,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:12:52,370 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 53 [2019-12-07 14:12:52,608 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:12:52,608 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/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 [2019-12-07 14:12:52,614 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 [2019-12-07 14:12:52,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:12:52,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:12:52,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:12:52,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:12:52,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:12:52,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:12:52,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:12:52,618 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/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 [2019-12-07 14:12:52,623 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 [2019-12-07 14:12:52,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:12:52,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:12:52,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:12:52,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:12:52,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:12:52,625 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:12:52,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:12:52,626 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/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 [2019-12-07 14:12:52,631 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 [2019-12-07 14:12:52,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:12:52,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:12:52,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:12:52,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:12:52,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:12:52,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:12:52,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:12:52,634 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/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 [2019-12-07 14:12:52,638 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 [2019-12-07 14:12:52,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:12:52,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:12:52,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:12:52,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:12:52,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:12:52,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:12:52,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:12:52,642 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/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 [2019-12-07 14:12:52,646 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 [2019-12-07 14:12:52,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:12:52,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:12:52,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:12:52,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:12:52,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:12:52,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:12:52,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:12:52,649 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/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 [2019-12-07 14:12:52,653 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 [2019-12-07 14:12:52,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:12:52,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:12:52,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:12:52,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:12:52,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:12:52,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:12:52,658 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:12:52,663 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 [2019-12-07 14:12:52,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:12:52,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:12:52,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:12:52,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:12:52,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:12:52,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:12:52,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:12:52,666 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:12:52,671 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 [2019-12-07 14:12:52,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:12:52,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:12:52,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:12:52,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:12:52,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:12:52,674 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:12:52,676 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:12:52,681 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 [2019-12-07 14:12:52,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:12:52,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:12:52,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:12:52,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:12:52,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:12:52,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:12:52,688 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:12:52,692 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 [2019-12-07 14:12:52,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:12:52,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:12:52,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:12:52,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:12:52,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:12:52,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:12:52,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:12:52,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:12:52,700 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 [2019-12-07 14:12:52,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:12:52,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:12:52,702 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 14:12:52,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:12:52,728 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-12-07 14:12:52,728 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 14:12:52,789 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:12:52,842 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-12-07 14:12:52,842 INFO L444 ModelExtractionUtils]: 32 out of 66 variables were initially zero. Simplification set additionally 30 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fd8317e6-3b8b-4054-b86d-95ebe01c4bb5/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:12:52,845 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:12:52,848 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2019-12-07 14:12:52,849 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:12:52,849 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc5.base)_2, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~arr2~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc5.base)_2 - 4*ULTIMATE.start_main_~j~0 - 1*ULTIMATE.start_main_~arr2~0.offset Supporting invariants [] [2019-12-07 14:12:52,875 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2019-12-07 14:12:52,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 14:12:52,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:12:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:12:52,902 INFO L264 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:12:52,902 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:12:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:12:52,908 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 14:12:52,908 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:12:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:12:52,926 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-12-07 14:12:52,926 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-12-07 14:12:52,948 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 15 states and 19 transitions. Complement of second has 5 states. [2019-12-07 14:12:52,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:12:52,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:12:52,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-12-07 14:12:52,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 14:12:52,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:12:52,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 13 letters. Loop has 2 letters. [2019-12-07 14:12:52,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:12:52,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2019-12-07 14:12:52,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:12:52,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2019-12-07 14:12:52,950 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:12:52,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-12-07 14:12:52,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 14:12:52,950 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 14:12:52,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 14:12:52,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:12:52,950 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:12:52,950 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:12:52,950 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:12:52,950 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 14:12:52,950 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:12:52,951 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:12:52,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 14:12:52,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 02:12:52 BoogieIcfgContainer [2019-12-07 14:12:52,955 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 14:12:52,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:12:52,955 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:12:52,955 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:12:52,956 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:12:50" (3/4) ... [2019-12-07 14:12:52,958 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 14:12:52,958 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:12:52,959 INFO L168 Benchmark]: Toolchain (without parser) took 3479.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 942.4 MB in the beginning and 1.0 GB in the end (delta: -106.2 MB). Peak memory consumption was 68.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:12:52,959 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:12:52,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:12:52,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:12:52,960 INFO L168 Benchmark]: Boogie Preprocessor took 20.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:12:52,961 INFO L168 Benchmark]: RCFGBuilder took 194.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:12:52,961 INFO L168 Benchmark]: BuchiAutomizer took 2916.03 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 43.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.0 MB). Peak memory consumption was 87.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:12:52,961 INFO L168 Benchmark]: Witness Printer took 2.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:12:52,963 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 312.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 194.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2916.03 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 43.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.0 MB). Peak memory consumption was 87.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + length and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (fac*length*sizeof(int))] + -4 * j + -1 * arr2 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 39 SDtfs, 41 SDslu, 23 SDs, 0 SdLazy, 31 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital208 mio100 ax109 hnf99 lsp86 ukn87 mio100 lsp69 div113 bol100 ite134 ukn100 eq158 hnf92 smp69 dnf115 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 150ms VariablesStem: 13 VariablesLoop: 11 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...