./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 27b51ff95b1c87aada11269295eff3fc5c30957f .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 01:02:38,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:02:38,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:02:38,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:02:38,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:02:38,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:02:38,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:02:38,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:02:38,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:02:38,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:02:38,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:02:38,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:02:38,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:02:38,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:02:38,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:02:38,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:02:38,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:02:38,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:02:38,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:02:38,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:02:39,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:02:39,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:02:39,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:02:39,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:02:39,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:02:39,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:02:39,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:02:39,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:02:39,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:02:39,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:02:39,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:02:39,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:02:39,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:02:39,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:02:39,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:02:39,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:02:39,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:02:39,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:02:39,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:02:39,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:02:39,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:02:39,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 01:02:39,050 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:02:39,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:02:39,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:02:39,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:02:39,053 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:02:39,054 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 01:02:39,054 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 01:02:39,054 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 01:02:39,054 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 01:02:39,054 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 01:02:39,055 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 01:02:39,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:02:39,056 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 01:02:39,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:02:39,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:02:39,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 01:02:39,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 01:02:39,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 01:02:39,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:02:39,057 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 01:02:39,058 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:02:39,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 01:02:39,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:02:39,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:02:39,059 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 01:02:39,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:02:39,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:02:39,059 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 01:02:39,060 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 01:02:39,060 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_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 -> 27b51ff95b1c87aada11269295eff3fc5c30957f [2019-11-20 01:02:39,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:02:39,210 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:02:39,213 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:02:39,214 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:02:39,215 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:02:39,215 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i [2019-11-20 01:02:39,267 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/bin/uautomizer/data/c90522df1/58619f347b0544ee81b2df842bbf2629/FLAG07589545c [2019-11-20 01:02:39,736 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:02:39,737 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i [2019-11-20 01:02:39,749 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/bin/uautomizer/data/c90522df1/58619f347b0544ee81b2df842bbf2629/FLAG07589545c [2019-11-20 01:02:39,999 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/bin/uautomizer/data/c90522df1/58619f347b0544ee81b2df842bbf2629 [2019-11-20 01:02:40,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:02:40,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:02:40,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:02:40,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:02:40,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:02:40,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:02:40" (1/1) ... [2019-11-20 01:02:40,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb68d7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:40, skipping insertion in model container [2019-11-20 01:02:40,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:02:40" (1/1) ... [2019-11-20 01:02:40,015 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:02:40,050 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:02:40,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:02:40,398 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:02:40,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:02:40,486 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:02:40,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:40 WrapperNode [2019-11-20 01:02:40,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:02:40,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:02:40,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:02:40,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:02:40,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:40" (1/1) ... [2019-11-20 01:02:40,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:40" (1/1) ... [2019-11-20 01:02:40,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:02:40,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:02:40,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:02:40,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:02:40,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:40" (1/1) ... [2019-11-20 01:02:40,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:40" (1/1) ... [2019-11-20 01:02:40,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:40" (1/1) ... [2019-11-20 01:02:40,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:40" (1/1) ... [2019-11-20 01:02:40,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:40" (1/1) ... [2019-11-20 01:02:40,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:40" (1/1) ... [2019-11-20 01:02:40,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:40" (1/1) ... [2019-11-20 01:02:40,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:02:40,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:02:40,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:02:40,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:02:40,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 [2019-11-20 01:02:40,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 01:02:40,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 01:02:40,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:02:40,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 01:02:40,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:02:40,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:02:40,859 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:02:40,859 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 01:02:40,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:02:40 BoogieIcfgContainer [2019-11-20 01:02:40,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:02:40,861 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 01:02:40,861 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 01:02:40,864 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 01:02:40,865 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:02:40,866 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 01:02:40" (1/3) ... [2019-11-20 01:02:40,867 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e316e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 01:02:40, skipping insertion in model container [2019-11-20 01:02:40,867 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:02:40,867 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:02:40" (2/3) ... [2019-11-20 01:02:40,867 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e316e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 01:02:40, skipping insertion in model container [2019-11-20 01:02:40,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:02:40,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:02:40" (3/3) ... [2019-11-20 01:02:40,870 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.12-alloca.i [2019-11-20 01:02:40,923 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 01:02:40,923 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 01:02:40,923 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 01:02:40,923 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:02:40,923 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:02:40,923 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 01:02:40,923 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:02:40,924 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 01:02:40,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-20 01:02:40,963 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 01:02:40,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:02:40,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:02:40,969 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 01:02:40,969 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 01:02:40,969 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 01:02:40,970 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-20 01:02:40,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 01:02:40,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:02:40,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:02:40,971 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 01:02:40,971 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 01:02:40,977 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~ret15;test_fun_#in~x, test_fun_#in~y := main_#t~nondet13, main_#t~nondet14;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~short7, test_fun_#t~mem12, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 7#L559-2true [2019-11-20 01:02:40,977 INFO L796 eck$LassoCheckResult]: Loop: 7#L559-2true call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 13#L555-1true assume test_fun_#t~short7; 5#L555-3true assume !!test_fun_#t~short7;havoc test_fun_#t~mem5;havoc test_fun_#t~short7;havoc test_fun_#t~mem6;call test_fun_#t~mem8 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 8#L556true assume test_fun_#t~mem8 > 0;havoc test_fun_#t~mem8;call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem9 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem9; 7#L559-2true [2019-11-20 01:02:40,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:40,981 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-20 01:02:40,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:40,988 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291710837] [2019-11-20 01:02:40,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:41,151 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:02:41,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:41,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 1 times [2019-11-20 01:02:41,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:41,152 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945994977] [2019-11-20 01:02:41,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:41,173 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:02:41,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:41,175 INFO L82 PathProgramCache]: Analyzing trace with hash 889569449, now seen corresponding path program 1 times [2019-11-20 01:02:41,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:41,175 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559417161] [2019-11-20 01:02:41,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:41,236 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:02:41,848 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 80 [2019-11-20 01:02:42,030 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-11-20 01:02:42,045 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:02:42,045 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:02:42,046 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:02:42,046 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:02:42,046 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 01:02:42,046 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:42,047 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:02:42,047 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:02:42,047 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12-alloca.i_Iteration1_Lasso [2019-11-20 01:02:42,047 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:02:42,048 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:02:42,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,413 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-11-20 01:02:42,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:42,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:43,109 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:02:43,118 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:43,129 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 [2019-11-20 01:02:43,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:43,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:43,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:43,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:43,139 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:43,140 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:43,145 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:43,160 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 [2019-11-20 01:02:43,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:43,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:43,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:43,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:43,170 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:43,171 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:43,177 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:43,198 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 [2019-11-20 01:02:43,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:43,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:43,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:43,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:43,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:43,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:43,217 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 [2019-11-20 01:02:43,230 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 [2019-11-20 01:02:43,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:43,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:43,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:43,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:43,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:43,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:02:43,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:43,259 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 [2019-11-20 01:02:43,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:43,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:43,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:43,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:43,270 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:43,270 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:43,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:43,293 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 [2019-11-20 01:02:43,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:43,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:43,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:43,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:43,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:43,300 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:02:43,303 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:43,310 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 [2019-11-20 01:02:43,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:43,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:43,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:43,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:43,321 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:43,321 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:43,330 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 01:02:43,415 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-20 01:02:43,416 INFO L444 ModelExtractionUtils]: 4 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_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:43,422 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:43,430 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 01:02:43,430 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 01:02:43,430 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1 Supporting invariants [] [2019-11-20 01:02:43,538 INFO L297 tatePredicateManager]: 19 out of 19 supporting invariants were superfluous and have been removed [2019-11-20 01:02:43,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 01:02:43,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:02:43,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 01:02:43,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:02:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:02:43,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 01:02:43,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:02:43,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 01:02:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:02:43,685 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-20 01:02:43,687 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 4 states. [2019-11-20 01:02:43,789 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 4 states. Result 50 states and 67 transitions. Complement of second has 9 states. [2019-11-20 01:02:43,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 01:02:43,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 01:02:43,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2019-11-20 01:02:43,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-20 01:02:43,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:02:43,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-20 01:02:43,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:02:43,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 2 letters. Loop has 8 letters. [2019-11-20 01:02:43,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:02:43,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 67 transitions. [2019-11-20 01:02:43,800 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2019-11-20 01:02:43,804 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 25 states and 39 transitions. [2019-11-20 01:02:43,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-20 01:02:43,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-20 01:02:43,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 39 transitions. [2019-11-20 01:02:43,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 01:02:43,807 INFO L688 BuchiCegarLoop]: Abstraction has 25 states and 39 transitions. [2019-11-20 01:02:43,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 39 transitions. [2019-11-20 01:02:43,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-11-20 01:02:43,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-20 01:02:43,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 37 transitions. [2019-11-20 01:02:43,835 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 37 transitions. [2019-11-20 01:02:43,835 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 37 transitions. [2019-11-20 01:02:43,835 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 01:02:43,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 37 transitions. [2019-11-20 01:02:43,836 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2019-11-20 01:02:43,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:02:43,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:02:43,837 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 01:02:43,837 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 01:02:43,838 INFO L794 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 187#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~ret15;test_fun_#in~x, test_fun_#in~y := main_#t~nondet13, main_#t~nondet14;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~short7, test_fun_#t~mem12, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 188#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 195#L555-1 [2019-11-20 01:02:43,838 INFO L796 eck$LassoCheckResult]: Loop: 195#L555-1 assume !test_fun_#t~short7;call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem6 > 0; 190#L555-3 assume !!test_fun_#t~short7;havoc test_fun_#t~mem5;havoc test_fun_#t~short7;havoc test_fun_#t~mem6;call test_fun_#t~mem8 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 191#L556 assume test_fun_#t~mem8 > 0;havoc test_fun_#t~mem8;call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem9 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem9; 194#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 195#L555-1 [2019-11-20 01:02:43,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:43,838 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2019-11-20 01:02:43,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:43,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651561308] [2019-11-20 01:02:43,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:43,878 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:02:43,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:43,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1298969, now seen corresponding path program 1 times [2019-11-20 01:02:43,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:43,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337719250] [2019-11-20 01:02:43,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:43,900 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:02:43,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:43,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1806908732, now seen corresponding path program 1 times [2019-11-20 01:02:43,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:43,901 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281167475] [2019-11-20 01:02:43,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:02:43,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:02:43,976 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281167475] [2019-11-20 01:02:43,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:02:43,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 01:02:43,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205150109] [2019-11-20 01:02:44,110 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-11-20 01:02:44,322 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-11-20 01:02:44,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:02:44,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:02:44,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:02:44,328 INFO L87 Difference]: Start difference. First operand 24 states and 37 transitions. cyclomatic complexity: 15 Second operand 5 states. [2019-11-20 01:02:44,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:02:44,396 INFO L93 Difference]: Finished difference Result 38 states and 55 transitions. [2019-11-20 01:02:44,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 01:02:44,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 55 transitions. [2019-11-20 01:02:44,399 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2019-11-20 01:02:44,400 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 28 states and 39 transitions. [2019-11-20 01:02:44,400 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-20 01:02:44,401 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-20 01:02:44,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 39 transitions. [2019-11-20 01:02:44,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 01:02:44,401 INFO L688 BuchiCegarLoop]: Abstraction has 28 states and 39 transitions. [2019-11-20 01:02:44,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 39 transitions. [2019-11-20 01:02:44,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 14. [2019-11-20 01:02:44,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-20 01:02:44,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 20 transitions. [2019-11-20 01:02:44,403 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2019-11-20 01:02:44,403 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2019-11-20 01:02:44,403 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 01:02:44,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 20 transitions. [2019-11-20 01:02:44,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 01:02:44,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:02:44,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:02:44,405 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 01:02:44,405 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-20 01:02:44,405 INFO L794 eck$LassoCheckResult]: Stem: 263#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 261#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~ret15;test_fun_#in~x, test_fun_#in~y := main_#t~nondet13, main_#t~nondet14;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~short7, test_fun_#t~mem12, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 262#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 269#L555-1 [2019-11-20 01:02:44,405 INFO L796 eck$LassoCheckResult]: Loop: 269#L555-1 assume test_fun_#t~short7; 264#L555-3 assume !!test_fun_#t~short7;havoc test_fun_#t~mem5;havoc test_fun_#t~short7;havoc test_fun_#t~mem6;call test_fun_#t~mem8 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 265#L556 assume !(test_fun_#t~mem8 > 0);havoc test_fun_#t~mem8;call test_fun_#t~mem10 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 272#L559 assume test_fun_#t~mem10 > 0;havoc test_fun_#t~mem10;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem11 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 268#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 269#L555-1 [2019-11-20 01:02:44,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:44,405 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 2 times [2019-11-20 01:02:44,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:44,408 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870852792] [2019-11-20 01:02:44,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:44,484 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:02:44,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:44,485 INFO L82 PathProgramCache]: Analyzing trace with hash 38423515, now seen corresponding path program 1 times [2019-11-20 01:02:44,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:44,486 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932724541] [2019-11-20 01:02:44,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:44,515 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:02:44,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:44,516 INFO L82 PathProgramCache]: Analyzing trace with hash 177751320, now seen corresponding path program 1 times [2019-11-20 01:02:44,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:44,517 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001054911] [2019-11-20 01:02:44,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:02:44,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:02:44,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001054911] [2019-11-20 01:02:44,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:02:44,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 01:02:44,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457512124] [2019-11-20 01:02:44,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:02:44,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:02:44,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:02:44,715 INFO L87 Difference]: Start difference. First operand 14 states and 20 transitions. cyclomatic complexity: 8 Second operand 5 states. [2019-11-20 01:02:44,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:02:44,755 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2019-11-20 01:02:44,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 01:02:44,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2019-11-20 01:02:44,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 01:02:44,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 15 transitions. [2019-11-20 01:02:44,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-11-20 01:02:44,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-11-20 01:02:44,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2019-11-20 01:02:44,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 01:02:44,758 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-20 01:02:44,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2019-11-20 01:02:44,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-20 01:02:44,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 01:02:44,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-11-20 01:02:44,760 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-20 01:02:44,760 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-20 01:02:44,761 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 01:02:44,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2019-11-20 01:02:44,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 01:02:44,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:02:44,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:02:44,762 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 01:02:44,762 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-20 01:02:44,762 INFO L794 eck$LassoCheckResult]: Stem: 303#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 301#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~ret15;test_fun_#in~x, test_fun_#in~y := main_#t~nondet13, main_#t~nondet14;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~short7, test_fun_#t~mem12, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 302#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 309#L555-1 [2019-11-20 01:02:44,762 INFO L796 eck$LassoCheckResult]: Loop: 309#L555-1 assume !test_fun_#t~short7;call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem6 > 0; 304#L555-3 assume !!test_fun_#t~short7;havoc test_fun_#t~mem5;havoc test_fun_#t~short7;havoc test_fun_#t~mem6;call test_fun_#t~mem8 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 305#L556 assume !(test_fun_#t~mem8 > 0);havoc test_fun_#t~mem8;call test_fun_#t~mem10 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 312#L559 assume test_fun_#t~mem10 > 0;havoc test_fun_#t~mem10;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem11 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 308#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 309#L555-1 [2019-11-20 01:02:44,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:44,763 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 3 times [2019-11-20 01:02:44,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:44,763 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842792385] [2019-11-20 01:02:44,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:44,788 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:02:44,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:44,794 INFO L82 PathProgramCache]: Analyzing trace with hash 40270557, now seen corresponding path program 1 times [2019-11-20 01:02:44,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:44,795 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914800457] [2019-11-20 01:02:44,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:44,824 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:02:44,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:44,825 INFO L82 PathProgramCache]: Analyzing trace with hash 179598362, now seen corresponding path program 1 times [2019-11-20 01:02:44,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:44,826 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155780306] [2019-11-20 01:02:44,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:44,888 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:02:44,992 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2019-11-20 01:02:45,405 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 91 [2019-11-20 01:02:45,949 WARN L191 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-11-20 01:02:45,952 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:02:45,952 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:02:45,952 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:02:45,952 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:02:45,953 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 01:02:45,953 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:45,953 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:02:45,953 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:02:45,953 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12-alloca.i_Iteration4_Lasso [2019-11-20 01:02:45,953 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:02:45,953 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:02:45,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:45,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:45,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:45,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:45,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:45,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:45,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:45,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:45,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:45,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:45,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:45,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:45,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:46,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:46,707 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2019-11-20 01:02:46,848 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-11-20 01:02:46,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:02:47,298 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2019-11-20 01:02:47,392 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:02:47,394 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 [2019-11-20 01:02:47,399 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 [2019-11-20 01:02:47,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:02:47,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:02:47,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:02:47,402 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 [2019-11-20 01:02:47,415 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 [2019-11-20 01:02:47,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:02:47,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:02:47,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:02:47,421 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 [2019-11-20 01:02:47,431 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 [2019-11-20 01:02:47,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:47,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:02:47,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:47,454 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 [2019-11-20 01:02:47,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:02:47,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,457 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:02:47,457 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:47,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:47,475 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 [2019-11-20 01:02:47,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:47,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:47,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 [2019-11-20 01:02:47,492 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 [2019-11-20 01:02:47,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:02:47,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:02:47,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:02:47,498 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:47,511 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 [2019-11-20 01:02:47,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:02:47,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:02:47,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:47,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 [2019-11-20 01:02:47,526 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 [2019-11-20 01:02:47,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,531 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:47,531 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:02:47,534 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:47,550 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 [2019-11-20 01:02:47,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:02:47,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:02:47,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:47,558 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:47,585 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 [2019-11-20 01:02:47,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:02:47,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:02:47,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:47,590 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:47,603 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 [2019-11-20 01:02:47,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,606 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:47,607 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:47,613 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 [2019-11-20 01:02:47,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:02:47,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,626 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:47,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:02:47,631 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:47,642 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 [2019-11-20 01:02:47,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:02:47,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:02:47,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:47,647 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:47,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:02:47,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:47,655 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:47,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:02:47,658 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 [2019-11-20 01:02:47,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:02:47,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:47,674 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:02:47,686 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 [2019-11-20 01:02:47,690 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 [2019-11-20 01:02:47,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,692 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-20 01:02:47,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,699 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-20 01:02:47,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:02:47,707 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 [2019-11-20 01:02:47,711 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 [2019-11-20 01:02:47,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,715 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:47,715 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:02:47,717 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 [2019-11-20 01:02:47,726 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 [2019-11-20 01:02:47,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,728 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:47,728 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:02:47,733 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:47,746 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 [2019-11-20 01:02:47,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,760 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:47,760 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:47,766 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:47,775 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 [2019-11-20 01:02:47,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,781 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:47,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:47,787 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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 [2019-11-20 01:02:47,793 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 [2019-11-20 01:02:47,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:02:47,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:02:47,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:02:47,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:02:47,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:02:47,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:02:47,808 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 01:02:47,820 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-20 01:02:47,820 INFO L444 ModelExtractionUtils]: 11 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_957eccc1-cadb-44cb-bf4c-827ec3c0b84d/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) [2019-11-20 01:02:47,825 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:02:47,830 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 01:02:47,830 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 01:02:47,830 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_2 Supporting invariants [] [2019-11-20 01:02:47,918 INFO L297 tatePredicateManager]: 23 out of 23 supporting invariants were superfluous and have been removed [2019-11-20 01:02:47,919 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 01:02:47,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:02:47,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 01:02:47,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:02:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:02:47,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 01:02:47,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:02:47,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 01:02:48,038 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2019-11-20 01:02:48,039 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 01:02:48,046 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:02:48,046 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 01:02:48,046 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:17 [2019-11-20 01:02:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:02:48,057 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2019-11-20 01:02:48,057 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 5 states. [2019-11-20 01:02:48,104 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 31 states and 38 transitions. Complement of second has 8 states. [2019-11-20 01:02:48,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 01:02:48,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 01:02:48,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2019-11-20 01:02:48,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 5 letters. [2019-11-20 01:02:48,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:02:48,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 8 letters. Loop has 5 letters. [2019-11-20 01:02:48,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:02:48,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 10 letters. [2019-11-20 01:02:48,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:02:48,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2019-11-20 01:02:48,108 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 01:02:48,109 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 38 transitions. [2019-11-20 01:02:48,109 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-20 01:02:48,109 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-20 01:02:48,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2019-11-20 01:02:48,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 01:02:48,109 INFO L688 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2019-11-20 01:02:48,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2019-11-20 01:02:48,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2019-11-20 01:02:48,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 01:02:48,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2019-11-20 01:02:48,112 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2019-11-20 01:02:48,112 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2019-11-20 01:02:48,112 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 01:02:48,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 32 transitions. [2019-11-20 01:02:48,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 01:02:48,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:02:48,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:02:48,113 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 01:02:48,114 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-20 01:02:48,114 INFO L794 eck$LassoCheckResult]: Stem: 490#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 488#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~ret15;test_fun_#in~x, test_fun_#in~y := main_#t~nondet13, main_#t~nondet14;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~short7, test_fun_#t~mem12, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 489#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 511#L555-1 assume !test_fun_#t~short7;call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem6 > 0; 491#L555-3 [2019-11-20 01:02:48,114 INFO L796 eck$LassoCheckResult]: Loop: 491#L555-3 assume !!test_fun_#t~short7;havoc test_fun_#t~mem5;havoc test_fun_#t~short7;havoc test_fun_#t~mem6;call test_fun_#t~mem8 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 492#L556 assume !(test_fun_#t~mem8 > 0);havoc test_fun_#t~mem8;call test_fun_#t~mem10 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 499#L559 assume !(test_fun_#t~mem10 > 0);havoc test_fun_#t~mem10; 495#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 496#L555-1 assume !test_fun_#t~short7;call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem6 > 0; 491#L555-3 [2019-11-20 01:02:48,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:48,114 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-11-20 01:02:48,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:48,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677187771] [2019-11-20 01:02:48,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:48,132 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:02:48,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:48,133 INFO L82 PathProgramCache]: Analyzing trace with hash 45964859, now seen corresponding path program 1 times [2019-11-20 01:02:48,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:48,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310246956] [2019-11-20 01:02:48,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:02:48,142 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:02:48,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:02:48,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1272583860, now seen corresponding path program 1 times [2019-11-20 01:02:48,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:02:48,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557135226] [2019-11-20 01:02:48,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:02:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:02:48,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:02:48,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557135226] [2019-11-20 01:02:48,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:02:48,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 01:02:48,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839286969] [2019-11-20 01:02:48,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:02:48,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:02:48,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:02:48,286 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. cyclomatic complexity: 11 Second operand 5 states. [2019-11-20 01:02:48,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:02:48,318 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2019-11-20 01:02:48,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 01:02:48,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2019-11-20 01:02:48,319 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 01:02:48,320 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-11-20 01:02:48,320 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 01:02:48,320 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 01:02:48,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 01:02:48,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 01:02:48,320 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:02:48,320 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:02:48,320 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:02:48,320 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 01:02:48,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 01:02:48,320 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 01:02:48,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 01:02:48,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 01:02:48 BoogieIcfgContainer [2019-11-20 01:02:48,325 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 01:02:48,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:02:48,326 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:02:48,326 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:02:48,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:02:40" (3/4) ... [2019-11-20 01:02:48,329 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 01:02:48,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:02:48,331 INFO L168 Benchmark]: Toolchain (without parser) took 8327.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 940.7 MB in the beginning and 957.3 MB in the end (delta: -16.6 MB). Peak memory consumption was 173.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:02:48,331 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:02:48,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 484.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 01:02:48,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:02:48,332 INFO L168 Benchmark]: Boogie Preprocessor took 24.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:02:48,333 INFO L168 Benchmark]: RCFGBuilder took 305.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:02:48,333 INFO L168 Benchmark]: BuchiAutomizer took 7464.38 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 46.7 MB). Free memory was 1.1 GB in the beginning and 957.3 MB in the end (delta: 146.5 MB). Peak memory consumption was 193.1 MB. Max. memory is 11.5 GB. [2019-11-20 01:02:48,333 INFO L168 Benchmark]: Witness Printer took 3.96 ms. Allocated memory is still 1.2 GB. Free memory is still 957.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:02:48,336 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 484.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 305.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7464.38 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 46.7 MB). Free memory was 1.1 GB in the beginning and 957.3 MB in the end (delta: 146.5 MB). Peak memory consumption was 193.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.96 ms. Allocated memory is still 1.2 GB. Free memory is still 957.3 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 #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 5 terminating modules (3 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y_ref][y_ref] and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.4s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 6.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 35 SDtfs, 51 SDslu, 34 SDs, 0 SdLazy, 108 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital345 mio100 ax106 hnf99 lsp73 ukn83 mio100 lsp25 div100 bol100 ite100 ukn100 eq199 hnf87 smp100 dnf129 smp81 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 6 VariablesLoop: 5 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...