./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/count_up_alloca.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_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/count_up_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 09e9c2546f4b38561ae63bf5b67ae3d7f5a4eb9b .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:39:56,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:39:56,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:39:56,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:39:56,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:39:56,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:39:56,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:39:56,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:39:56,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:39:56,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:39:56,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:39:56,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:39:56,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:39:56,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:39:56,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:39:56,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:39:56,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:39:56,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:39:56,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:39:56,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:39:56,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:39:56,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:39:56,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:39:56,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:39:56,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:39:56,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:39:56,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:39:56,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:39:56,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:39:56,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:39:56,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:39:56,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:39:56,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:39:56,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:39:56,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:39:56,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:39:56,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:39:56,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:39:56,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:39:56,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:39:56,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:39:56,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 18:39:57,009 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:39:57,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:39:57,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:39:57,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:39:57,011 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:39:57,011 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:39:57,011 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:39:57,011 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:39:57,011 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:39:57,011 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:39:57,011 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:39:57,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:39:57,012 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:39:57,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:39:57,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:39:57,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:39:57,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:39:57,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:39:57,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:39:57,013 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:39:57,013 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:39:57,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:39:57,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:39:57,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:39:57,013 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:39:57,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:39:57,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:39:57,014 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:39:57,014 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:39:57,014 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:39:57,014 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_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 -> 09e9c2546f4b38561ae63bf5b67ae3d7f5a4eb9b [2019-12-07 18:39:57,112 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:39:57,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:39:57,123 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:39:57,124 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:39:57,125 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:39:57,125 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/../../sv-benchmarks/c/termination-15/count_up_alloca.i [2019-12-07 18:39:57,168 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/data/01cc3128c/69e2d64e6ced45d8978bcd7e090017eb/FLAGe4a7c2af7 [2019-12-07 18:39:57,612 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:39:57,612 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/sv-benchmarks/c/termination-15/count_up_alloca.i [2019-12-07 18:39:57,619 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/data/01cc3128c/69e2d64e6ced45d8978bcd7e090017eb/FLAGe4a7c2af7 [2019-12-07 18:39:57,630 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/data/01cc3128c/69e2d64e6ced45d8978bcd7e090017eb [2019-12-07 18:39:57,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:39:57,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:39:57,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:39:57,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:39:57,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:39:57,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:39:57" (1/1) ... [2019-12-07 18:39:57,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b6fc423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:57, skipping insertion in model container [2019-12-07 18:39:57,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:39:57" (1/1) ... [2019-12-07 18:39:57,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:39:57,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:39:57,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:39:57,902 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:39:57,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:39:57,970 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:39:57,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:57 WrapperNode [2019-12-07 18:39:57,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:39:57,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:39:57,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:39:57,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:39:57,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:57" (1/1) ... [2019-12-07 18:39:57,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:57" (1/1) ... [2019-12-07 18:39:58,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:39:58,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:39:58,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:39:58,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:39:58,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:57" (1/1) ... [2019-12-07 18:39:58,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:57" (1/1) ... [2019-12-07 18:39:58,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:57" (1/1) ... [2019-12-07 18:39:58,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:57" (1/1) ... [2019-12-07 18:39:58,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:57" (1/1) ... [2019-12-07 18:39:58,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:57" (1/1) ... [2019-12-07 18:39:58,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:57" (1/1) ... [2019-12-07 18:39:58,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:39:58,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:39:58,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:39:58,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:39:58,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:39:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:39:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:39:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:39:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:39:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:39:58,191 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:39:58,191 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 18:39:58,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:39:58 BoogieIcfgContainer [2019-12-07 18:39:58,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:39:58,192 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:39:58,192 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:39:58,194 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:39:58,195 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:39:58,195 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:39:57" (1/3) ... [2019-12-07 18:39:58,196 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@338bf059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:39:58, skipping insertion in model container [2019-12-07 18:39:58,196 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:39:58,196 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:39:57" (2/3) ... [2019-12-07 18:39:58,196 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@338bf059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:39:58, skipping insertion in model container [2019-12-07 18:39:58,196 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:39:58,196 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:39:58" (3/3) ... [2019-12-07 18:39:58,197 INFO L371 chiAutomizerObserver]: Analyzing ICFG count_up_alloca.i [2019-12-07 18:39:58,229 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:39:58,229 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:39:58,229 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:39:58,229 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:39:58,229 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:39:58,229 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:39:58,229 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:39:58,230 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:39:58,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-12-07 18:39:58,254 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 18:39:58,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:39:58,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:39:58,259 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 18:39:58,259 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 18:39:58,259 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:39:58,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-12-07 18:39:58,260 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 18:39:58,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:39:58,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:39:58,260 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 18:39:58,260 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 18:39:58,265 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 15#L369true assume !(main_~length~0 < 1); 20#L369-2true call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 12#L371true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 16#L372-3true [2019-12-07 18:39:58,266 INFO L796 eck$LassoCheckResult]: Loop: 16#L372-3true assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 7#L374true assume main_~val~0 > main_~limit~0;main_~val~0 := main_~limit~0; 10#L374-2true call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 13#L372-2true main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 16#L372-3true [2019-12-07 18:39:58,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:58,269 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2019-12-07 18:39:58,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:58,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329006084] [2019-12-07 18:39:58,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:58,363 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:39:58,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:58,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1603878, now seen corresponding path program 1 times [2019-12-07 18:39:58,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:58,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297409695] [2019-12-07 18:39:58,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:58,381 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:39:58,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:58,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1182970350, now seen corresponding path program 1 times [2019-12-07 18:39:58,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:58,383 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944701500] [2019-12-07 18:39:58,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:58,413 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:39:58,562 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:39:58,562 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:39:58,563 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:39:58,563 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:39:58,563 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:39:58,563 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:58,563 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:39:58,563 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:39:58,563 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration1_Lasso [2019-12-07 18:39:58,563 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:39:58,563 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:39:58,580 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 18:39:58,585 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 18:39:58,586 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 18:39:58,588 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 18:39:58,590 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 18:39:58,593 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 18:39:58,595 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 18:39:58,596 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 18:39:58,597 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 18:39:58,599 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 18:39:58,600 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 18:39:58,602 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 18:39:58,817 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:39:58,821 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:58,825 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 18:39:58,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:58,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:58,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:58,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:58,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:58,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:58,829 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:58,830 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:58,834 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 18:39:58,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:58,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:58,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:58,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:58,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:58,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:58,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:58,839 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:58,842 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 18:39:58,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:58,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:58,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:58,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:58,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:58,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:58,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:58,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:58,850 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 18:39:58,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:58,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:58,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:58,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:58,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:58,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:58,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:58,853 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:58,858 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 18:39:58,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:58,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:58,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:58,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:58,862 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:39:58,862 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:39:58,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:58,868 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 18:39:58,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:58,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:58,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:58,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:58,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:58,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:58,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:58,872 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:58,875 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 18:39:58,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:58,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:58,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:58,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:58,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:58,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:58,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:58,879 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:58,882 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 18:39:58,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:58,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:58,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:58,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:58,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:58,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:58,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:58,885 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:58,888 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 18:39:58,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:58,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:58,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:58,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:58,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:58,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:58,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:58,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:58,895 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 18:39:58,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:58,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:58,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:58,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:58,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:58,898 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:58,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:58,899 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:58,903 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 18:39:58,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:58,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:58,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:58,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:58,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:39:58,907 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:39:58,911 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:58,914 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 18:39:58,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:58,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:58,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:58,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:58,922 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:39:58,922 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:39:58,932 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:39:58,954 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-12-07 18:39:58,954 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:58,958 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:39:58,960 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:39:58,961 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:39:58,961 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~arr~0.offset, ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_#t~malloc207.base)_1) = -1*ULTIMATE.start_main_~arr~0.offset - 4*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc207.base)_1 Supporting invariants [] [2019-12-07 18:39:58,971 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 18:39:58,978 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 18:39:59,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:39:59,017 INFO L264 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:39:59,018 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:39:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:39:59,030 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:39:59,031 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:39:59,046 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 18:39:59,058 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 18:39:59,059 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 5 states. [2019-12-07 18:39:59,130 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 5 states. Result 40 states and 57 transitions. Complement of second has 9 states. [2019-12-07 18:39:59,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:39:59,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 18:39:59,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 37 transitions. [2019-12-07 18:39:59,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 18:39:59,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:39:59,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 9 letters. Loop has 4 letters. [2019-12-07 18:39:59,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:39:59,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 5 letters. Loop has 8 letters. [2019-12-07 18:39:59,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:39:59,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 57 transitions. [2019-12-07 18:39:59,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 18:39:59,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 15 states and 20 transitions. [2019-12-07 18:39:59,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 18:39:59,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 18:39:59,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2019-12-07 18:39:59,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:39:59,147 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-12-07 18:39:59,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2019-12-07 18:39:59,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 18:39:59,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 18:39:59,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-12-07 18:39:59,172 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-12-07 18:39:59,172 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-12-07 18:39:59,172 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:39:59,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2019-12-07 18:39:59,173 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 18:39:59,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:39:59,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:39:59,173 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:39:59,173 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 18:39:59,174 INFO L794 eck$LassoCheckResult]: Stem: 141#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 139#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 140#L369 assume !(main_~length~0 < 1); 145#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 142#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 143#L372-3 assume !(main_~i~0 < main_~length~0); 146#L372-4 main_~j~0 := 0; 133#L379-3 [2019-12-07 18:39:59,174 INFO L796 eck$LassoCheckResult]: Loop: 133#L379-3 assume !!(main_~j~0 < main_~length~0); 134#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 135#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 132#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 133#L379-3 [2019-12-07 18:39:59,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:59,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815512, now seen corresponding path program 1 times [2019-12-07 18:39:59,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:59,175 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355030975] [2019-12-07 18:39:59,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:39:59,218 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 18:39:59,218 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355030975] [2019-12-07 18:39:59,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:39:59,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:39:59,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138412509] [2019-12-07 18:39:59,221 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:39:59,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:59,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 1 times [2019-12-07 18:39:59,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:59,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507169584] [2019-12-07 18:39:59,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,229 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:39:59,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:39:59,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:39:59,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:39:59,259 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-12-07 18:39:59,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:39:59,279 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2019-12-07 18:39:59,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:39:59,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2019-12-07 18:39:59,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 18:39:59,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2019-12-07 18:39:59,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-12-07 18:39:59,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 18:39:59,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2019-12-07 18:39:59,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:39:59,282 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-07 18:39:59,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2019-12-07 18:39:59,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2019-12-07 18:39:59,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 18:39:59,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2019-12-07 18:39:59,283 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-12-07 18:39:59,283 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-12-07 18:39:59,283 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:39:59,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2019-12-07 18:39:59,284 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 18:39:59,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:39:59,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:39:59,284 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:39:59,285 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 18:39:59,285 INFO L794 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 179#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 180#L369 assume !(main_~length~0 < 1); 186#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 182#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 183#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 176#L374 assume !(main_~val~0 > main_~limit~0); 177#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 178#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 184#L372-3 assume !(main_~i~0 < main_~length~0); 185#L372-4 main_~j~0 := 0; 175#L379-3 [2019-12-07 18:39:59,285 INFO L796 eck$LassoCheckResult]: Loop: 175#L379-3 assume !!(main_~j~0 < main_~length~0); 172#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 173#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 174#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 175#L379-3 [2019-12-07 18:39:59,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:59,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1329979393, now seen corresponding path program 1 times [2019-12-07 18:39:59,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:59,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18073470] [2019-12-07 18:39:59,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,305 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:39:59,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:59,305 INFO L82 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 2 times [2019-12-07 18:39:59,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:59,305 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163177603] [2019-12-07 18:39:59,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,312 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:39:59,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:59,312 INFO L82 PathProgramCache]: Analyzing trace with hash -2035265782, now seen corresponding path program 1 times [2019-12-07 18:39:59,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:59,313 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173253757] [2019-12-07 18:39:59,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,341 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:39:59,469 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-12-07 18:39:59,506 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:39:59,506 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:39:59,506 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:39:59,506 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:39:59,506 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:39:59,506 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:59,506 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:39:59,507 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:39:59,507 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration3_Lasso [2019-12-07 18:39:59,507 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:39:59,507 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:39:59,510 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 18:39:59,511 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 18:39:59,512 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 18:39:59,514 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 18:39:59,515 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 18:39:59,516 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 18:39:59,518 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 18:39:59,520 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 18:39:59,521 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 18:39:59,593 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 18:39:59,594 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 18:39:59,596 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 18:39:59,597 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 18:39:59,717 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:39:59,718 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:59,721 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 18:39:59,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:59,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:59,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:59,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:59,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:59,723 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:59,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:59,725 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:59,729 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 18:39:59,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:59,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:59,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:59,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:59,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:59,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:59,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:59,732 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:59,736 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 18:39:59,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:59,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:59,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:59,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:59,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:59,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:59,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:59,739 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:59,742 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 18:39:59,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:59,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:59,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:59,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:59,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:59,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:59,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:59,745 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:59,750 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 18:39:59,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:59,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:59,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:59,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:59,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:59,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:59,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:59,753 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:59,757 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 18:39:59,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:59,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:59,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:59,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:59,760 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:39:59,760 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:39:59,763 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:59,768 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 18:39:59,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:59,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:39:59,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:59,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:59,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:59,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:39:59,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:39:59,773 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/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 18:39:59,778 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 18:39:59,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:59,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:59,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:59,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:59,781 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:39:59,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:39:59,784 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:59,788 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 18:39:59,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:59,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:59,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:59,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:59,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:39:59,792 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:39:59,797 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:59,802 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 18:39:59,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:59,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:59,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:59,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:59,806 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:39:59,806 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:39:59,811 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:59,818 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 18:39:59,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:59,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:59,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:59,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:59,820 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:39:59,821 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:39:59,824 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:59,828 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 18:39:59,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:39:59,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:39:59,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:39:59,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:39:59,835 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:39:59,835 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:39:59,846 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:39:59,887 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2019-12-07 18:39:59,887 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:39:59,890 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:39:59,894 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:39:59,894 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:39:59,894 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2019-12-07 18:39:59,901 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 18:39:59,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:39:59,916 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:39:59,917 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:39:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:39:59,921 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:39:59,921 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:39:59,928 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 18:39:59,929 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 18:39:59,929 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-12-07 18:39:59,938 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 20 states and 26 transitions. Complement of second has 4 states. [2019-12-07 18:39:59,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 18:39:59,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:39:59,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2019-12-07 18:39:59,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 4 letters. [2019-12-07 18:39:59,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:39:59,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 15 letters. Loop has 4 letters. [2019-12-07 18:39:59,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:39:59,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 8 letters. [2019-12-07 18:39:59,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:39:59,939 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 26 transitions. [2019-12-07 18:39:59,940 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:39:59,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 25 transitions. [2019-12-07 18:39:59,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 18:39:59,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 18:39:59,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2019-12-07 18:39:59,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:39:59,941 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-12-07 18:39:59,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2019-12-07 18:39:59,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-12-07 18:39:59,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 18:39:59,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2019-12-07 18:39:59,943 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2019-12-07 18:39:59,943 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2019-12-07 18:39:59,943 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 18:39:59,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2019-12-07 18:39:59,944 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:39:59,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:39:59,944 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:39:59,944 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:39:59,944 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:39:59,944 INFO L794 eck$LassoCheckResult]: Stem: 296#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 293#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 294#L369 assume !(main_~length~0 < 1); 300#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 297#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 298#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 291#L374 assume !(main_~val~0 > main_~limit~0); 292#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 295#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 299#L372-3 assume !(main_~i~0 < main_~length~0); 301#L372-4 main_~j~0 := 0; 290#L379-3 assume !!(main_~j~0 < main_~length~0); 284#L380-3 [2019-12-07 18:39:59,945 INFO L796 eck$LassoCheckResult]: Loop: 284#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 285#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem212;havoc main_#t~post213; 284#L380-3 [2019-12-07 18:39:59,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:59,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1720311820, now seen corresponding path program 1 times [2019-12-07 18:39:59,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:59,945 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386462891] [2019-12-07 18:39:59,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,960 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:39:59,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:59,960 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 1 times [2019-12-07 18:39:59,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:59,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648818356] [2019-12-07 18:39:59,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,967 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:39:59,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:39:59,967 INFO L82 PathProgramCache]: Analyzing trace with hash -342748399, now seen corresponding path program 1 times [2019-12-07 18:39:59,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:39:59,968 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223424366] [2019-12-07 18:39:59,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:39:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:39:59,984 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:40:00,129 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:40:00,129 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:40:00,129 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:40:00,129 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:40:00,129 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:40:00,129 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:40:00,129 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:40:00,129 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:40:00,129 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration4_Lasso [2019-12-07 18:40:00,129 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:40:00,129 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:40:00,131 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 18:40:00,133 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 18:40:00,134 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 18:40:00,241 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 18:40:00,242 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 18:40:00,243 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 18:40:00,244 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 18:40:00,245 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 18:40:00,247 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 18:40:00,248 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 18:40:00,249 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 18:40:00,250 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 18:40:00,412 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:40:00,412 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:40:00,416 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 18:40:00,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:40:00,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:40:00,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:40:00,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:40:00,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:40:00,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:40:00,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:40:00,419 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:40:00,423 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 18:40:00,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:40:00,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:40:00,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:40:00,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:40:00,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:40:00,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:40:00,427 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:40:00,430 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 18:40:00,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:40:00,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:40:00,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:40:00,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:40:00,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:40:00,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:40:00,441 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:40:00,455 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-12-07 18:40:00,455 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:40:00,457 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:40:00,459 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:40:00,459 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:40:00,459 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~limit~0, v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) ULTIMATE.start_main_~arr~0.offset)_2) = 1*ULTIMATE.start_main_~limit~0 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) ULTIMATE.start_main_~arr~0.offset)_2 Supporting invariants [] [2019-12-07 18:40:00,468 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2019-12-07 18:40:00,470 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 18:40:00,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:00,493 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:40:00,493 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:00,501 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:40:00,502 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:00,513 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 18:40:00,513 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 18:40:00,513 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-12-07 18:40:00,541 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 27 states and 35 transitions. Complement of second has 8 states. [2019-12-07 18:40:00,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:40:00,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:40:00,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2019-12-07 18:40:00,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 2 letters. [2019-12-07 18:40:00,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:40:00,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 14 letters. Loop has 2 letters. [2019-12-07 18:40:00,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:40:00,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 4 letters. [2019-12-07 18:40:00,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:40:00,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2019-12-07 18:40:00,543 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:40:00,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 22 states and 28 transitions. [2019-12-07 18:40:00,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 18:40:00,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-12-07 18:40:00,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 28 transitions. [2019-12-07 18:40:00,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:40:00,544 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2019-12-07 18:40:00,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 28 transitions. [2019-12-07 18:40:00,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2019-12-07 18:40:00,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 18:40:00,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2019-12-07 18:40:00,545 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2019-12-07 18:40:00,546 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2019-12-07 18:40:00,546 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 18:40:00,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 27 transitions. [2019-12-07 18:40:00,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:40:00,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:40:00,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:40:00,547 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:40:00,547 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:40:00,547 INFO L794 eck$LassoCheckResult]: Stem: 431#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 429#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 430#L369 assume !(main_~length~0 < 1); 436#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 432#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 433#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 426#L374 assume !(main_~val~0 > main_~limit~0); 427#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 428#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 434#L372-3 assume !(main_~i~0 < main_~length~0); 435#L372-4 main_~j~0 := 0; 424#L379-3 assume !!(main_~j~0 < main_~length~0); 425#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 437#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 418#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 419#L379-3 assume !!(main_~j~0 < main_~length~0); 420#L380-3 [2019-12-07 18:40:00,547 INFO L796 eck$LassoCheckResult]: Loop: 420#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 421#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem212;havoc main_#t~post213; 420#L380-3 [2019-12-07 18:40:00,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:00,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1331270241, now seen corresponding path program 2 times [2019-12-07 18:40:00,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:00,547 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384932808] [2019-12-07 18:40:00,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:00,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:00,618 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384932808] [2019-12-07 18:40:00,618 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137306465] [2019-12-07 18:40:00,618 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:40:00,644 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:40:00,644 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:40:00,645 INFO L264 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:40:00,646 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:00,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:40:00,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:40:00,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 13 [2019-12-07 18:40:00,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735348633] [2019-12-07 18:40:00,690 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 18:40:00,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:00,690 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 2 times [2019-12-07 18:40:00,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:00,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099573527] [2019-12-07 18:40:00,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:40:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:40:00,696 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:40:00,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:40:00,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 18:40:00,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-12-07 18:40:00,714 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. cyclomatic complexity: 10 Second operand 14 states. [2019-12-07 18:40:00,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:40:00,870 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2019-12-07 18:40:00,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 18:40:00,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 56 transitions. [2019-12-07 18:40:00,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:40:00,872 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 28 states and 35 transitions. [2019-12-07 18:40:00,872 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 18:40:00,872 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-12-07 18:40:00,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2019-12-07 18:40:00,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:40:00,873 INFO L688 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-12-07 18:40:00,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2019-12-07 18:40:00,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2019-12-07 18:40:00,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 18:40:00,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2019-12-07 18:40:00,874 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2019-12-07 18:40:00,874 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2019-12-07 18:40:00,874 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 18:40:00,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2019-12-07 18:40:00,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 18:40:00,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:40:00,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:40:00,875 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:40:00,875 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 18:40:00,876 INFO L794 eck$LassoCheckResult]: Stem: 574#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 572#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 573#L369 assume !(main_~length~0 < 1); 580#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 575#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 576#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 579#L374 assume !(main_~val~0 > main_~limit~0); 584#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 577#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 578#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 569#L374 assume !(main_~val~0 > main_~limit~0); 570#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 571#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 583#L372-3 assume !(main_~i~0 < main_~length~0); 582#L372-4 main_~j~0 := 0; 567#L379-3 assume !!(main_~j~0 < main_~length~0); 568#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 585#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 565#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 566#L379-3 assume !!(main_~j~0 < main_~length~0); 561#L380-3 [2019-12-07 18:40:00,876 INFO L796 eck$LassoCheckResult]: Loop: 561#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 562#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem212;havoc main_#t~post213; 561#L380-3 [2019-12-07 18:40:00,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:00,876 INFO L82 PathProgramCache]: Analyzing trace with hash 34477914, now seen corresponding path program 3 times [2019-12-07 18:40:00,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:00,876 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056489261] [2019-12-07 18:40:00,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:40:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:40:00,898 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:40:00,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:00,898 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 3 times [2019-12-07 18:40:00,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:00,898 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865185929] [2019-12-07 18:40:00,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:40:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:40:00,903 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:40:00,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:00,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1226461473, now seen corresponding path program 1 times [2019-12-07 18:40:00,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:40:00,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906017274] [2019-12-07 18:40:00,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:40:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:40:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:40:00,934 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:40:01,095 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2019-12-07 18:40:01,135 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:40:01,135 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:40:01,135 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:40:01,135 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:40:01,135 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:40:01,135 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:40:01,135 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:40:01,135 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:40:01,136 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration6_Lasso [2019-12-07 18:40:01,136 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:40:01,136 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:40:01,138 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 18:40:01,140 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 18:40:01,209 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 18:40:01,211 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 18:40:01,212 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 18:40:01,213 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 18:40:01,214 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 18:40:01,215 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 18:40:01,217 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 18:40:01,218 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 18:40:01,219 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 18:40:01,220 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 18:40:01,332 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:40:01,332 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:40:01,335 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 18:40:01,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:40:01,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:40:01,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:40:01,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:40:01,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:40:01,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:40:01,339 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:40:01,343 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 18:40:01,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:40:01,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:40:01,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:40:01,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:40:01,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:40:01,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:40:01,354 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:40:01,358 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 18:40:01,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:40:01,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:40:01,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:40:01,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:40:01,362 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:40:01,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:40:01,368 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:40:01,373 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 18:40:01,373 INFO L444 ModelExtractionUtils]: 11 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_209ff667-dfc5-4c7a-87aa-eea93c50eaab/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:40:01,377 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:40:01,381 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 18:40:01,381 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:40:01,381 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~limit~0, v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_3) = 1*ULTIMATE.start_main_~limit~0 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_3 Supporting invariants [] [2019-12-07 18:40:01,391 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-12-07 18:40:01,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 18:40:01,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:01,410 INFO L264 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:40:01,411 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:01,416 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:40:01,416 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:01,424 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 18:40:01,424 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 18:40:01,425 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-12-07 18:40:01,434 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 35 transitions. Complement of second has 7 states. [2019-12-07 18:40:01,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:40:01,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:40:01,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-12-07 18:40:01,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2019-12-07 18:40:01,435 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:40:01,435 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:40:01,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:01,452 INFO L264 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:40:01,452 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:01,457 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:40:01,457 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:01,467 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 18:40:01,467 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:40:01,467 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-12-07 18:40:01,476 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 35 transitions. Complement of second has 7 states. [2019-12-07 18:40:01,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:40:01,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:40:01,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-12-07 18:40:01,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2019-12-07 18:40:01,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:40:01,478 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:40:01,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:40:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:01,498 INFO L264 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:40:01,498 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:40:01,503 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:40:01,503 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:40:01,512 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 18:40:01,513 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:40:01,513 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-12-07 18:40:01,526 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 31 states and 39 transitions. Complement of second has 6 states. [2019-12-07 18:40:01,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:40:01,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:40:01,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2019-12-07 18:40:01,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 2 letters. [2019-12-07 18:40:01,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:40:01,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 22 letters. Loop has 2 letters. [2019-12-07 18:40:01,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:40:01,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 4 letters. [2019-12-07 18:40:01,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:40:01,529 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2019-12-07 18:40:01,530 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:40:01,530 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2019-12-07 18:40:01,530 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:40:01,530 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:40:01,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:40:01,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:40:01,531 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:40:01,531 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:40:01,531 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:40:01,531 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 18:40:01,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:40:01,531 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:40:01,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:40:01,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:40:01 BoogieIcfgContainer [2019-12-07 18:40:01,537 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:40:01,537 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:40:01,537 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:40:01,537 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:40:01,538 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:39:58" (3/4) ... [2019-12-07 18:40:01,541 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:40:01,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:40:01,542 INFO L168 Benchmark]: Toolchain (without parser) took 3908.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 939.8 MB in the beginning and 855.8 MB in the end (delta: 83.9 MB). Peak memory consumption was 246.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:01,542 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:40:01,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -150.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:01,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:40:01,544 INFO L168 Benchmark]: Boogie Preprocessor took 16.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:01,544 INFO L168 Benchmark]: RCFGBuilder took 174.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:01,545 INFO L168 Benchmark]: BuchiAutomizer took 3344.52 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.1 GB in the beginning and 855.8 MB in the end (delta: 205.8 MB). Peak memory consumption was 262.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:40:01,545 INFO L168 Benchmark]: Witness Printer took 3.76 ms. Allocated memory is still 1.2 GB. Free memory is still 855.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:40:01,548 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 335.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -150.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 174.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3344.52 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.1 GB in the beginning and 855.8 MB in the end (delta: 205.8 MB). Peak memory consumption was 262.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.76 ms. Allocated memory is still 1.2 GB. Free memory is still 855.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * arr + -4 * i + unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] and consists of 6 locations. One deterministic module has affine ranking function -1 * j + length and consists of 3 locations. One deterministic module has affine ranking function limit + -1 * unknown-#memory_int-unknown[arr][arr] and consists of 5 locations. One nondeterministic module has affine ranking function limit + -1 * unknown-#memory_int-unknown[arr][j * 4 + arr] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 104 SDtfs, 222 SDslu, 86 SDs, 0 SdLazy, 190 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital130 mio100 ax100 hnf98 lsp94 ukn79 mio100 lsp55 div100 bol100 ite100 ukn100 eq164 hnf89 smp96 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...