./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/sep05-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/sep05-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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 32bit --witnessprinter.graph.data.programhash b1dceb134ad462d5f95d7af7b0695951aa1c5481 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 14:58:23,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 14:58:23,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 14:58:23,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 14:58:23,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 14:58:23,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 14:58:23,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 14:58:23,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 14:58:23,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 14:58:23,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 14:58:23,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 14:58:23,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 14:58:23,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 14:58:23,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 14:58:23,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 14:58:23,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 14:58:23,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 14:58:23,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 14:58:23,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 14:58:23,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 14:58:23,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 14:58:23,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 14:58:23,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 14:58:23,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 14:58:23,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 14:58:23,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 14:58:23,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 14:58:23,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 14:58:23,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 14:58:23,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 14:58:23,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 14:58:23,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 14:58:23,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 14:58:23,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 14:58:23,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 14:58:23,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 14:58:23,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 14:58:23,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 14:58:23,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 14:58:23,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 14:58:23,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 14:58:23,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 14:58:23,508 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 14:58:23,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 14:58:23,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 14:58:23,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 14:58:23,511 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 14:58:23,511 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 14:58:23,511 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 14:58:23,511 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 14:58:23,512 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 14:58:23,512 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 14:58:23,513 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 14:58:23,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 14:58:23,513 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 14:58:23,514 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 14:58:23,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 14:58:23,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 14:58:23,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 14:58:23,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 14:58:23,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 14:58:23,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 14:58:23,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 14:58:23,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 14:58:23,516 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 14:58:23,516 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 14:58:23,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 14:58:23,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 14:58:23,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 14:58:23,517 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 14:58:23,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 14:58:23,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 14:58:23,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 14:58:23,518 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 14:58:23,519 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 14:58:23,519 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1dceb134ad462d5f95d7af7b0695951aa1c5481 [2020-12-01 14:58:23,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 14:58:23,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 14:58:23,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 14:58:23,868 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 14:58:23,869 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 14:58:23,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/../../sv-benchmarks/c/reducercommutativity/sep05-1.i [2020-12-01 14:58:23,976 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/data/f726066d1/e3e320a476474d5c87f107e23c88e93f/FLAG442ffd829 [2020-12-01 14:58:24,505 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 14:58:24,507 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/sv-benchmarks/c/reducercommutativity/sep05-1.i [2020-12-01 14:58:24,519 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/data/f726066d1/e3e320a476474d5c87f107e23c88e93f/FLAG442ffd829 [2020-12-01 14:58:24,835 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/data/f726066d1/e3e320a476474d5c87f107e23c88e93f [2020-12-01 14:58:24,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 14:58:24,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 14:58:24,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 14:58:24,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 14:58:24,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 14:58:24,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:58:24" (1/1) ... [2020-12-01 14:58:24,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77670c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:24, skipping insertion in model container [2020-12-01 14:58:24,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:58:24" (1/1) ... [2020-12-01 14:58:24,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 14:58:24,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 14:58:25,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:58:25,108 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 14:58:25,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:58:25,153 INFO L208 MainTranslator]: Completed translation [2020-12-01 14:58:25,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:25 WrapperNode [2020-12-01 14:58:25,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 14:58:25,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 14:58:25,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 14:58:25,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 14:58:25,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:25" (1/1) ... [2020-12-01 14:58:25,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:25" (1/1) ... [2020-12-01 14:58:25,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 14:58:25,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 14:58:25,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 14:58:25,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 14:58:25,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:25" (1/1) ... [2020-12-01 14:58:25,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:25" (1/1) ... [2020-12-01 14:58:25,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:25" (1/1) ... [2020-12-01 14:58:25,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:25" (1/1) ... [2020-12-01 14:58:25,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:25" (1/1) ... [2020-12-01 14:58:25,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:25" (1/1) ... [2020-12-01 14:58:25,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:25" (1/1) ... [2020-12-01 14:58:25,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 14:58:25,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 14:58:25,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 14:58:25,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 14:58:25,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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 [2020-12-01 14:58:25,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 14:58:25,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 14:58:25,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 14:58:25,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 14:58:25,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 14:58:25,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 14:58:25,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 14:58:25,900 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 14:58:25,900 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-12-01 14:58:25,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:58:25 BoogieIcfgContainer [2020-12-01 14:58:25,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 14:58:25,906 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 14:58:25,906 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 14:58:25,909 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 14:58:25,910 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 14:58:25,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 02:58:24" (1/3) ... [2020-12-01 14:58:25,912 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1187c02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 02:58:25, skipping insertion in model container [2020-12-01 14:58:25,912 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 14:58:25,912 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:25" (2/3) ... [2020-12-01 14:58:25,913 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1187c02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 02:58:25, skipping insertion in model container [2020-12-01 14:58:25,913 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 14:58:25,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:58:25" (3/3) ... [2020-12-01 14:58:25,915 INFO L389 chiAutomizerObserver]: Analyzing ICFG sep05-1.i [2020-12-01 14:58:25,982 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 14:58:25,982 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 14:58:25,982 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 14:58:25,982 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 14:58:25,982 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 14:58:25,982 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 14:58:25,983 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 14:58:25,983 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 14:58:25,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states. [2020-12-01 14:58:26,020 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2020-12-01 14:58:26,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:26,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:26,027 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-12-01 14:58:26,027 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 14:58:26,028 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 14:58:26,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states. [2020-12-01 14:58:26,033 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2020-12-01 14:58:26,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:26,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:26,034 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-12-01 14:58:26,034 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 14:58:26,042 INFO L794 eck$LassoCheckResult]: Stem: 24#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 8#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 29#L37-3true [2020-12-01 14:58:26,042 INFO L796 eck$LassoCheckResult]: Loop: 29#L37-3true assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 30#L37-2true main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 29#L37-3true [2020-12-01 14:58:26,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:26,051 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-12-01 14:58:26,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:26,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312658424] [2020-12-01 14:58:26,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:26,172 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:26,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:26,206 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:26,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:26,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2020-12-01 14:58:26,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:26,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913993646] [2020-12-01 14:58:26,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:26,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:26,223 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:26,225 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:26,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:26,228 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-12-01 14:58:26,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:26,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873278270] [2020-12-01 14:58:26,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:26,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:26,271 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:26,276 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:26,637 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-12-01 14:58:26,773 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 14:58:26,774 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 14:58:26,774 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 14:58:26,774 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 14:58:26,774 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 14:58:26,774 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:26,775 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 14:58:26,775 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 14:58:26,775 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration1_Lasso [2020-12-01 14:58:26,775 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 14:58:26,775 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 14:58:26,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:26,985 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-12-01 14:58:27,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:27,415 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 14:58:27,419 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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) [2020-12-01 14:58:27,428 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:27,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:27,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:27,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:27,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:27,438 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:27,438 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 [2020-12-01 14:58:27,452 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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) [2020-12-01 14:58:27,508 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:27,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:27,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:27,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:27,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:27,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:27,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:27,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:27,523 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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) [2020-12-01 14:58:27,562 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:27,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:27,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:27,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:27,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:27,571 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:27,573 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 [2020-12-01 14:58:27,583 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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) [2020-12-01 14:58:27,622 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:27,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:27,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:27,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:27,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:27,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:27,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:27,643 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:27,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:27,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:27,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:27,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:27,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:27,683 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:27,683 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:27,699 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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) [2020-12-01 14:58:27,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:27,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:27,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:27,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:27,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:27,753 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:27,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:27,771 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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) [2020-12-01 14:58:27,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:27,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:27,812 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:27,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:27,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:27,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:27,814 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:27,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:27,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:27,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:27,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:27,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:27,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:27,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:27,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:27,872 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:27,886 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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 [2020-12-01 14:58:27,913 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:27,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:27,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:27,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:27,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:27,918 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:27,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:27,935 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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 [2020-12-01 14:58:27,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:27,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:27,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:27,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:27,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:27,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:27,975 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:27,995 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 14:58:28,019 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-12-01 14:58:28,019 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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 [2020-12-01 14:58:28,024 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 14:58:28,045 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 14:58:28,046 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 14:58:28,046 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#x~0.base)_1, ULTIMATE.start_main_~i~1) = 9*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_1 - 8*ULTIMATE.start_main_~i~1 Supporting invariants [] [2020-12-01 14:58:28,099 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2020-12-01 14:58:28,106 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 14:58:28,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:28,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 14:58:28,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:28,163 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 14:58:28,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:28,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:28,214 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-12-01 14:58:28,216 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states. Second operand 3 states. [2020-12-01 14:58:28,303 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states.. Second operand 3 states. Result 78 states and 115 transitions. Complement of second has 8 states. [2020-12-01 14:58:28,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 14:58:28,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 14:58:28,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2020-12-01 14:58:28,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 77 transitions. Stem has 2 letters. Loop has 2 letters. [2020-12-01 14:58:28,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 14:58:28,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 77 transitions. Stem has 4 letters. Loop has 2 letters. [2020-12-01 14:58:28,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 14:58:28,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 77 transitions. Stem has 2 letters. Loop has 4 letters. [2020-12-01 14:58:28,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 14:58:28,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 115 transitions. [2020-12-01 14:58:28,315 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-12-01 14:58:28,319 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 22 states and 30 transitions. [2020-12-01 14:58:28,320 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-12-01 14:58:28,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-12-01 14:58:28,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2020-12-01 14:58:28,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:28,322 INFO L692 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-12-01 14:58:28,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2020-12-01 14:58:28,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-12-01 14:58:28,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-01 14:58:28,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-12-01 14:58:28,347 INFO L715 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-12-01 14:58:28,347 INFO L595 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-12-01 14:58:28,348 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 14:58:28,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 30 transitions. [2020-12-01 14:58:28,349 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-12-01 14:58:28,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:28,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:28,349 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-12-01 14:58:28,350 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 14:58:28,350 INFO L794 eck$LassoCheckResult]: Stem: 190#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 186#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 187#L37-3 assume !(main_~i~1 < 5); 193#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 175#L18-3 [2020-12-01 14:58:28,350 INFO L796 eck$LassoCheckResult]: Loop: 175#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 177#L20 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 180#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 175#L18-3 [2020-12-01 14:58:28,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:28,351 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2020-12-01 14:58:28,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:28,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843894278] [2020-12-01 14:58:28,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:28,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:28,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843894278] [2020-12-01 14:58:28,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:28,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:28,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517296969] [2020-12-01 14:58:28,398 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 14:58:28,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:28,399 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 1 times [2020-12-01 14:58:28,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:28,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565351222] [2020-12-01 14:58:28,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:28,413 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:28,420 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:28,423 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:28,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:28,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:28,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:28,476 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-12-01 14:58:28,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:28,490 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2020-12-01 14:58:28,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:28,491 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2020-12-01 14:58:28,492 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-12-01 14:58:28,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2020-12-01 14:58:28,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-12-01 14:58:28,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-12-01 14:58:28,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2020-12-01 14:58:28,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:28,494 INFO L692 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2020-12-01 14:58:28,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2020-12-01 14:58:28,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2020-12-01 14:58:28,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-01 14:58:28,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2020-12-01 14:58:28,496 INFO L715 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2020-12-01 14:58:28,496 INFO L595 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2020-12-01 14:58:28,497 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 14:58:28,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2020-12-01 14:58:28,498 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-12-01 14:58:28,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:28,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:28,498 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 14:58:28,499 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 14:58:28,499 INFO L794 eck$LassoCheckResult]: Stem: 241#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 237#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 238#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 245#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 246#L37-3 assume !(main_~i~1 < 5); 244#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 226#L18-3 [2020-12-01 14:58:28,499 INFO L796 eck$LassoCheckResult]: Loop: 226#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 228#L20 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 232#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 226#L18-3 [2020-12-01 14:58:28,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:28,500 INFO L82 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2020-12-01 14:58:28,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:28,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731783858] [2020-12-01 14:58:28,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:28,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:28,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731783858] [2020-12-01 14:58:28,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079462360] [2020-12-01 14:58:28,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:58:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:28,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 14:58:28,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:28,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 14:58:28,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-01 14:58:28,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075807322] [2020-12-01 14:58:28,632 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 14:58:28,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:28,632 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 2 times [2020-12-01 14:58:28,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:28,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851488955] [2020-12-01 14:58:28,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:28,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:28,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:28,669 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:28,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:28,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 14:58:28,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:58:28,723 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. cyclomatic complexity: 12 Second operand 5 states. [2020-12-01 14:58:28,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:28,757 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2020-12-01 14:58:28,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 14:58:28,758 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2020-12-01 14:58:28,763 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-12-01 14:58:28,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 32 transitions. [2020-12-01 14:58:28,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-12-01 14:58:28,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-12-01 14:58:28,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2020-12-01 14:58:28,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:28,766 INFO L692 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-12-01 14:58:28,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2020-12-01 14:58:28,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2020-12-01 14:58:28,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-01 14:58:28,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2020-12-01 14:58:28,770 INFO L715 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-12-01 14:58:28,770 INFO L595 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-12-01 14:58:28,770 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-12-01 14:58:28,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2020-12-01 14:58:28,773 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-12-01 14:58:28,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:28,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:28,775 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2020-12-01 14:58:28,775 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 14:58:28,775 INFO L794 eck$LassoCheckResult]: Stem: 311#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 307#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 308#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 315#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 316#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 317#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 319#L37-3 assume !(main_~i~1 < 5); 314#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 296#L18-3 [2020-12-01 14:58:28,775 INFO L796 eck$LassoCheckResult]: Loop: 296#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 298#L20 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 301#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 296#L18-3 [2020-12-01 14:58:28,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:28,776 INFO L82 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2020-12-01 14:58:28,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:28,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623319227] [2020-12-01 14:58:28,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:28,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623319227] [2020-12-01 14:58:28,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91081236] [2020-12-01 14:58:28,847 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:58:28,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 14:58:28,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 14:58:28,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 14:58:28,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:28,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:28,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 14:58:28,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-01 14:58:28,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021866662] [2020-12-01 14:58:28,932 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 14:58:28,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:28,932 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 3 times [2020-12-01 14:58:28,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:28,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13217013] [2020-12-01 14:58:28,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:28,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:28,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:28,955 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:29,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:29,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 14:58:29,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-01 14:58:29,013 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. cyclomatic complexity: 12 Second operand 6 states. [2020-12-01 14:58:29,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:29,040 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2020-12-01 14:58:29,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 14:58:29,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2020-12-01 14:58:29,047 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-12-01 14:58:29,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 34 transitions. [2020-12-01 14:58:29,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-12-01 14:58:29,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-12-01 14:58:29,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2020-12-01 14:58:29,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:29,050 INFO L692 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-12-01 14:58:29,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2020-12-01 14:58:29,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2020-12-01 14:58:29,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-01 14:58:29,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2020-12-01 14:58:29,055 INFO L715 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-12-01 14:58:29,055 INFO L595 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-12-01 14:58:29,055 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-12-01 14:58:29,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2020-12-01 14:58:29,056 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-12-01 14:58:29,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:29,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:29,057 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1] [2020-12-01 14:58:29,057 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 14:58:29,057 INFO L794 eck$LassoCheckResult]: Stem: 392#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 388#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 389#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 396#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 397#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 398#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 402#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 401#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 400#L37-3 assume !(main_~i~1 < 5); 395#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 377#L18-3 [2020-12-01 14:58:29,058 INFO L796 eck$LassoCheckResult]: Loop: 377#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 379#L20 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 382#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 377#L18-3 [2020-12-01 14:58:29,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:29,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1489134225, now seen corresponding path program 3 times [2020-12-01 14:58:29,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:29,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710540649] [2020-12-01 14:58:29,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:29,148 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:29,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710540649] [2020-12-01 14:58:29,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977113867] [2020-12-01 14:58:29,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:58:29,249 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-12-01 14:58:29,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 14:58:29,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 14:58:29,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:29,291 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:29,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 14:58:29,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-01 14:58:29,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259791411] [2020-12-01 14:58:29,293 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 14:58:29,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:29,294 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 4 times [2020-12-01 14:58:29,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:29,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256767268] [2020-12-01 14:58:29,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:29,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:29,320 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:29,329 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:29,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:29,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 14:58:29,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-01 14:58:29,385 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. cyclomatic complexity: 12 Second operand 7 states. [2020-12-01 14:58:29,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:29,412 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2020-12-01 14:58:29,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 14:58:29,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2020-12-01 14:58:29,414 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-12-01 14:58:29,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 36 transitions. [2020-12-01 14:58:29,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-12-01 14:58:29,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-12-01 14:58:29,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2020-12-01 14:58:29,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:29,418 INFO L692 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2020-12-01 14:58:29,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2020-12-01 14:58:29,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2020-12-01 14:58:29,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-01 14:58:29,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2020-12-01 14:58:29,427 INFO L715 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2020-12-01 14:58:29,427 INFO L595 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2020-12-01 14:58:29,427 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-12-01 14:58:29,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2020-12-01 14:58:29,430 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-12-01 14:58:29,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:29,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:29,431 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2020-12-01 14:58:29,431 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 14:58:29,432 INFO L794 eck$LassoCheckResult]: Stem: 484#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 480#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 481#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 488#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 489#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 490#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 491#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 496#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 495#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 494#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 493#L37-3 assume !(main_~i~1 < 5); 487#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 469#L18-3 [2020-12-01 14:58:29,432 INFO L796 eck$LassoCheckResult]: Loop: 469#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 471#L20 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 474#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 469#L18-3 [2020-12-01 14:58:29,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:29,432 INFO L82 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 4 times [2020-12-01 14:58:29,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:29,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374498056] [2020-12-01 14:58:29,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:29,519 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:29,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374498056] [2020-12-01 14:58:29,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322350831] [2020-12-01 14:58:29,520 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:58:29,581 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-01 14:58:29,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 14:58:29,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 14:58:29,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:29,629 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:29,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 14:58:29,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-01 14:58:29,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775293148] [2020-12-01 14:58:29,630 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 14:58:29,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:29,631 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 5 times [2020-12-01 14:58:29,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:29,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270517918] [2020-12-01 14:58:29,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:29,637 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:29,642 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:29,644 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:29,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:29,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 14:58:29,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-01 14:58:29,716 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. cyclomatic complexity: 12 Second operand 8 states. [2020-12-01 14:58:29,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:29,753 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-12-01 14:58:29,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 14:58:29,754 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2020-12-01 14:58:29,760 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-12-01 14:58:29,761 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 37 transitions. [2020-12-01 14:58:29,762 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-12-01 14:58:29,762 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-12-01 14:58:29,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2020-12-01 14:58:29,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:29,763 INFO L692 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-12-01 14:58:29,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2020-12-01 14:58:29,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-01 14:58:29,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-01 14:58:29,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-12-01 14:58:29,769 INFO L715 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-12-01 14:58:29,769 INFO L595 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-12-01 14:58:29,769 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-12-01 14:58:29,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 37 transitions. [2020-12-01 14:58:29,771 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2020-12-01 14:58:29,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:29,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:29,772 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2020-12-01 14:58:29,772 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 14:58:29,772 INFO L794 eck$LassoCheckResult]: Stem: 586#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 582#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 583#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 590#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 591#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 592#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 600#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 599#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 598#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 597#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 596#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 595#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 594#L37-3 assume !(main_~i~1 < 5); 589#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 571#L18-3 [2020-12-01 14:58:29,773 INFO L796 eck$LassoCheckResult]: Loop: 571#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 573#L20 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 576#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 571#L18-3 [2020-12-01 14:58:29,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:29,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 5 times [2020-12-01 14:58:29,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:29,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149820080] [2020-12-01 14:58:29,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:29,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:29,835 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:29,841 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:29,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:29,846 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 6 times [2020-12-01 14:58:29,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:29,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501208485] [2020-12-01 14:58:29,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:29,861 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:29,867 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:29,871 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:29,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:29,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1638582855, now seen corresponding path program 1 times [2020-12-01 14:58:29,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:29,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167168680] [2020-12-01 14:58:29,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:29,914 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:29,928 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:29,936 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:31,049 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 167 DAG size of output: 127 [2020-12-01 14:58:31,280 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-01 14:58:31,284 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 14:58:31,284 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 14:58:31,284 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 14:58:31,284 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 14:58:31,284 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 14:58:31,284 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:31,284 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 14:58:31,284 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 14:58:31,285 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration7_Lasso [2020-12-01 14:58:31,285 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 14:58:31,285 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 14:58:31,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,600 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-01 14:58:31,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:31,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:32,092 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 14:58:32,092 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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) [2020-12-01 14:58:32,103 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,107 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,107 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,119 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:32,155 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,180 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:32,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:32,215 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,253 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:32,272 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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 [2020-12-01 14:58:32,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:32,323 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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) [2020-12-01 14:58:32,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,410 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:32,410 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:32,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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 [2020-12-01 14:58:32,469 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:32,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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 [2020-12-01 14:58:32,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:32,513 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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 [2020-12-01 14:58:32,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,538 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:32,538 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:32,557 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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 [2020-12-01 14:58:32,579 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:32,593 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,616 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:32,616 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:32,619 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:32,646 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/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 [2020-12-01 14:58:32,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:32,671 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,691 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:32,696 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,716 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,718 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:32,719 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,743 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,743 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:32,744 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,767 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:32,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:32,770 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,793 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:32,794 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:32,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,817 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:32,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:32,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,852 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:32,853 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:32,867 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,890 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:32,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:32,894 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:32,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:32,928 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:32,952 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:32,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:32,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:32,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:32,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:32,976 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:32,976 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:33,003 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:33,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:33,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:33,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:33,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:33,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:33,040 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:33,041 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:33,067 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 14:58:33,116 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-12-01 14:58:33,116 INFO L444 ModelExtractionUtils]: 11 out of 25 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:33,135 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 14:58:33,164 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 14:58:33,165 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 14:58:33,165 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sep_~i~0) = -2*ULTIMATE.start_sep_~i~0 + 9 Supporting invariants [] [2020-12-01 14:58:33,245 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 14:58:33,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:33,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 14:58:33,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:33,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 14:58:33,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:33,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:33,334 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-12-01 14:58:33,334 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-12-01 14:58:33,365 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 35 states and 46 transitions. Complement of second has 7 states. [2020-12-01 14:58:33,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 14:58:33,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 14:58:33,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-12-01 14:58:33,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 3 letters. [2020-12-01 14:58:33,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 14:58:33,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2020-12-01 14:58:33,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 14:58:33,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 6 letters. [2020-12-01 14:58:33,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 14:58:33,370 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2020-12-01 14:58:33,370 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-12-01 14:58:33,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 31 states and 39 transitions. [2020-12-01 14:58:33,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-12-01 14:58:33,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-12-01 14:58:33,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 39 transitions. [2020-12-01 14:58:33,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:33,373 INFO L692 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2020-12-01 14:58:33,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 39 transitions. [2020-12-01 14:58:33,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-01 14:58:33,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-01 14:58:33,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2020-12-01 14:58:33,376 INFO L715 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2020-12-01 14:58:33,377 INFO L595 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2020-12-01 14:58:33,377 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-12-01 14:58:33,377 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2020-12-01 14:58:33,377 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-12-01 14:58:33,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:33,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:33,379 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:33,379 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 14:58:33,379 INFO L794 eck$LassoCheckResult]: Stem: 771#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 767#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 768#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 775#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 776#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 777#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 785#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 784#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 783#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 782#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 781#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 780#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 779#L37-3 assume !(main_~i~1 < 5); 774#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 755#L18-3 assume !(sep_~i~0 < 5); 756#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 778#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 769#L18-8 [2020-12-01 14:58:33,379 INFO L796 eck$LassoCheckResult]: Loop: 769#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 763#L20-2 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 764#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 769#L18-8 [2020-12-01 14:58:33,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:33,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1638581187, now seen corresponding path program 1 times [2020-12-01 14:58:33,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:33,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833753539] [2020-12-01 14:58:33,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:33,434 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-01 14:58:33,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833753539] [2020-12-01 14:58:33,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:33,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:33,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287199430] [2020-12-01 14:58:33,437 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 14:58:33,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:33,437 INFO L82 PathProgramCache]: Analyzing trace with hash 74576, now seen corresponding path program 1 times [2020-12-01 14:58:33,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:33,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587596090] [2020-12-01 14:58:33,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:33,446 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:33,452 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:33,464 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:33,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:33,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:33,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:33,553 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-12-01 14:58:33,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:33,581 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2020-12-01 14:58:33,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:33,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2020-12-01 14:58:33,583 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-12-01 14:58:33,585 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 49 transitions. [2020-12-01 14:58:33,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-12-01 14:58:33,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-12-01 14:58:33,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2020-12-01 14:58:33,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:33,587 INFO L692 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2020-12-01 14:58:33,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2020-12-01 14:58:33,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2020-12-01 14:58:33,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-01 14:58:33,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-12-01 14:58:33,595 INFO L715 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-12-01 14:58:33,595 INFO L595 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-12-01 14:58:33,595 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-12-01 14:58:33,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 39 transitions. [2020-12-01 14:58:33,597 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-12-01 14:58:33,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:33,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:33,599 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:33,599 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 14:58:33,600 INFO L794 eck$LassoCheckResult]: Stem: 847#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 843#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 844#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 852#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 853#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 854#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 862#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 861#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 860#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 859#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 858#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 857#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 856#L37-3 assume !(main_~i~1 < 5); 851#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 831#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 832#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 837#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 833#L18-3 assume !(sep_~i~0 < 5); 834#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 855#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 845#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 839#L20-2 [2020-12-01 14:58:33,600 INFO L796 eck$LassoCheckResult]: Loop: 839#L20-2 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 840#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 848#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 839#L20-2 [2020-12-01 14:58:33,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:33,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1567455174, now seen corresponding path program 1 times [2020-12-01 14:58:33,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:33,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343194818] [2020-12-01 14:58:33,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:33,644 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-01 14:58:33,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343194818] [2020-12-01 14:58:33,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853376216] [2020-12-01 14:58:33,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:58:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:33,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 14:58:33,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:33,747 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-01 14:58:33,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 14:58:33,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-01 14:58:33,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476747841] [2020-12-01 14:58:33,749 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 14:58:33,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:33,752 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 2 times [2020-12-01 14:58:33,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:33,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477167268] [2020-12-01 14:58:33,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:33,767 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:33,770 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:33,772 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:33,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:33,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 14:58:33,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:58:33,820 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand 5 states. [2020-12-01 14:58:33,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:33,873 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2020-12-01 14:58:33,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 14:58:33,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 61 transitions. [2020-12-01 14:58:33,874 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-12-01 14:58:33,877 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 61 transitions. [2020-12-01 14:58:33,877 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2020-12-01 14:58:33,877 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2020-12-01 14:58:33,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 61 transitions. [2020-12-01 14:58:33,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:33,883 INFO L692 BuchiCegarLoop]: Abstraction has 48 states and 61 transitions. [2020-12-01 14:58:33,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 61 transitions. [2020-12-01 14:58:33,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 38. [2020-12-01 14:58:33,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-01 14:58:33,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2020-12-01 14:58:33,892 INFO L715 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2020-12-01 14:58:33,893 INFO L595 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2020-12-01 14:58:33,893 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-12-01 14:58:33,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 47 transitions. [2020-12-01 14:58:33,893 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-12-01 14:58:33,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:33,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:33,895 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:33,895 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 14:58:33,897 INFO L794 eck$LassoCheckResult]: Stem: 996#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 992#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 993#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1001#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1002#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1003#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1015#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1014#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1012#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1011#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1010#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1009#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1008#L37-3 assume !(main_~i~1 < 5); 1000#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 979#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 980#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1013#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 981#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 982#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 986#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 987#L18-3 assume !(sep_~i~0 < 5); 1004#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1005#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1006#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1016#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 997#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 994#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 988#L20-2 [2020-12-01 14:58:33,897 INFO L796 eck$LassoCheckResult]: Loop: 988#L20-2 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 989#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1007#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 988#L20-2 [2020-12-01 14:58:33,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:33,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1248848095, now seen corresponding path program 1 times [2020-12-01 14:58:33,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:33,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886862241] [2020-12-01 14:58:33,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:33,966 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:33,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886862241] [2020-12-01 14:58:33,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587877992] [2020-12-01 14:58:33,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:58:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:34,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 14:58:34,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:34,100 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:34,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 14:58:34,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-01 14:58:34,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578265854] [2020-12-01 14:58:34,101 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 14:58:34,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:34,102 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 3 times [2020-12-01 14:58:34,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:34,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220296054] [2020-12-01 14:58:34,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:34,124 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:34,131 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:34,133 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:34,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:34,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 14:58:34,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-01 14:58:34,177 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. cyclomatic complexity: 14 Second operand 6 states. [2020-12-01 14:58:34,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:34,249 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2020-12-01 14:58:34,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 14:58:34,250 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 73 transitions. [2020-12-01 14:58:34,253 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-12-01 14:58:34,254 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 57 states and 73 transitions. [2020-12-01 14:58:34,254 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-12-01 14:58:34,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-12-01 14:58:34,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 73 transitions. [2020-12-01 14:58:34,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:34,255 INFO L692 BuchiCegarLoop]: Abstraction has 57 states and 73 transitions. [2020-12-01 14:58:34,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 73 transitions. [2020-12-01 14:58:34,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 44. [2020-12-01 14:58:34,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-01 14:58:34,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2020-12-01 14:58:34,270 INFO L715 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-12-01 14:58:34,270 INFO L595 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-12-01 14:58:34,270 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-12-01 14:58:34,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 55 transitions. [2020-12-01 14:58:34,271 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-12-01 14:58:34,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:34,271 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:34,272 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:34,273 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 14:58:34,273 INFO L794 eck$LassoCheckResult]: Stem: 1180#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 1176#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1177#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1185#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1186#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1187#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1201#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1200#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1198#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1196#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1195#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1193#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1192#L37-3 assume !(main_~i~1 < 5); 1184#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1161#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1162#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1168#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1169#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1174#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1175#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1163#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1164#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1199#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1197#L18-3 assume !(sep_~i~0 < 5); 1188#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1189#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1178#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1170#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1171#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1181#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1204#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1203#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1202#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1191#L20-2 [2020-12-01 14:58:34,273 INFO L796 eck$LassoCheckResult]: Loop: 1191#L20-2 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 1194#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1190#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1191#L20-2 [2020-12-01 14:58:34,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:34,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1685621030, now seen corresponding path program 2 times [2020-12-01 14:58:34,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:34,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437262689] [2020-12-01 14:58:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:34,346 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-01 14:58:34,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437262689] [2020-12-01 14:58:34,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361069470] [2020-12-01 14:58:34,346 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:58:34,426 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 14:58:34,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 14:58:34,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 14:58:34,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:34,476 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-01 14:58:34,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 14:58:34,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-01 14:58:34,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279589301] [2020-12-01 14:58:34,478 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 14:58:34,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:34,479 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 4 times [2020-12-01 14:58:34,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:34,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228301831] [2020-12-01 14:58:34,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:34,486 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:34,488 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:34,490 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:34,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:34,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 14:58:34,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-01 14:58:34,533 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. cyclomatic complexity: 16 Second operand 7 states. [2020-12-01 14:58:34,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:34,604 INFO L93 Difference]: Finished difference Result 66 states and 85 transitions. [2020-12-01 14:58:34,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 14:58:34,604 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 85 transitions. [2020-12-01 14:58:34,605 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-12-01 14:58:34,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 85 transitions. [2020-12-01 14:58:34,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2020-12-01 14:58:34,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2020-12-01 14:58:34,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 85 transitions. [2020-12-01 14:58:34,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:34,609 INFO L692 BuchiCegarLoop]: Abstraction has 66 states and 85 transitions. [2020-12-01 14:58:34,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 85 transitions. [2020-12-01 14:58:34,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 50. [2020-12-01 14:58:34,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-01 14:58:34,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2020-12-01 14:58:34,614 INFO L715 BuchiCegarLoop]: Abstraction has 50 states and 63 transitions. [2020-12-01 14:58:34,614 INFO L595 BuchiCegarLoop]: Abstraction has 50 states and 63 transitions. [2020-12-01 14:58:34,614 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-12-01 14:58:34,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 63 transitions. [2020-12-01 14:58:34,615 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-12-01 14:58:34,615 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:34,615 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:34,618 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:34,619 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 14:58:34,619 INFO L794 eck$LassoCheckResult]: Stem: 1393#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 1389#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1390#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1398#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1399#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1400#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1415#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1414#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1412#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1409#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1408#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1406#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1405#L37-3 assume !(main_~i~1 < 5); 1397#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1377#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1378#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1383#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1379#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1380#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1426#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1425#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1424#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1423#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1422#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1411#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1413#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1410#L18-3 assume !(sep_~i~0 < 5); 1401#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1402#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1391#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1385#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1386#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1394#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1421#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1420#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1419#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1418#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1417#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1416#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1404#L20-2 [2020-12-01 14:58:34,620 INFO L796 eck$LassoCheckResult]: Loop: 1404#L20-2 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 1407#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1403#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1404#L20-2 [2020-12-01 14:58:34,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:34,620 INFO L82 PathProgramCache]: Analyzing trace with hash -534676351, now seen corresponding path program 3 times [2020-12-01 14:58:34,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:34,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142768945] [2020-12-01 14:58:34,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:34,693 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-12-01 14:58:34,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142768945] [2020-12-01 14:58:34,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260180456] [2020-12-01 14:58:34,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:58:34,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-12-01 14:58:34,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 14:58:34,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 14:58:34,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:34,973 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-12-01 14:58:34,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 14:58:34,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-01 14:58:34,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545390630] [2020-12-01 14:58:34,974 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 14:58:34,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:34,974 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 5 times [2020-12-01 14:58:34,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:34,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330874800] [2020-12-01 14:58:34,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:34,979 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:34,982 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:34,983 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:35,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:35,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 14:58:35,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-01 14:58:35,027 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. cyclomatic complexity: 18 Second operand 8 states. [2020-12-01 14:58:35,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:35,107 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2020-12-01 14:58:35,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 14:58:35,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 88 transitions. [2020-12-01 14:58:35,109 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-12-01 14:58:35,109 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 69 states and 88 transitions. [2020-12-01 14:58:35,110 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2020-12-01 14:58:35,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2020-12-01 14:58:35,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 88 transitions. [2020-12-01 14:58:35,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:35,110 INFO L692 BuchiCegarLoop]: Abstraction has 69 states and 88 transitions. [2020-12-01 14:58:35,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 88 transitions. [2020-12-01 14:58:35,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 56. [2020-12-01 14:58:35,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-01 14:58:35,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2020-12-01 14:58:35,113 INFO L715 BuchiCegarLoop]: Abstraction has 56 states and 71 transitions. [2020-12-01 14:58:35,113 INFO L595 BuchiCegarLoop]: Abstraction has 56 states and 71 transitions. [2020-12-01 14:58:35,113 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-12-01 14:58:35,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 71 transitions. [2020-12-01 14:58:35,114 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-12-01 14:58:35,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:35,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:35,115 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:35,115 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 14:58:35,115 INFO L794 eck$LassoCheckResult]: Stem: 1639#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 1634#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1635#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1643#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1644#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1645#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1662#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1660#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1658#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1656#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1654#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1652#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1651#L37-3 assume !(main_~i~1 < 5); 1642#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1621#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1622#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1676#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1623#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1624#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1627#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1628#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1675#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1674#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1673#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1672#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1671#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1670#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1668#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1669#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1667#L18-3 assume !(sep_~i~0 < 5); 1646#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1647#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1648#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1630#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1631#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1636#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1637#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1666#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1665#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1664#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1663#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1661#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1659#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1657#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1655#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1650#L20-2 [2020-12-01 14:58:35,115 INFO L796 eck$LassoCheckResult]: Loop: 1650#L20-2 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 1653#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1649#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1650#L20-2 [2020-12-01 14:58:35,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:35,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1616244090, now seen corresponding path program 4 times [2020-12-01 14:58:35,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:35,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391944208] [2020-12-01 14:58:35,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:35,199 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:35,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:35,302 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:35,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:35,307 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 6 times [2020-12-01 14:58:35,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:35,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837922942] [2020-12-01 14:58:35,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:35,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:35,316 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:35,318 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:35,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:35,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1350622481, now seen corresponding path program 1 times [2020-12-01 14:58:35,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:35,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730509997] [2020-12-01 14:58:35,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:35,429 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-12-01 14:58:35,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730509997] [2020-12-01 14:58:35,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085716217] [2020-12-01 14:58:35,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:58:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:35,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 14:58:35,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:35,595 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-12-01 14:58:35,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 14:58:35,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2020-12-01 14:58:35,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284137244] [2020-12-01 14:58:35,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:35,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 14:58:35,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-12-01 14:58:35,640 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. cyclomatic complexity: 20 Second operand 8 states. [2020-12-01 14:58:35,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:35,723 INFO L93 Difference]: Finished difference Result 69 states and 85 transitions. [2020-12-01 14:58:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 14:58:35,724 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 85 transitions. [2020-12-01 14:58:35,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 14:58:35,731 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 52 states and 63 transitions. [2020-12-01 14:58:35,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2020-12-01 14:58:35,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2020-12-01 14:58:35,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 63 transitions. [2020-12-01 14:58:35,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:35,733 INFO L692 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2020-12-01 14:58:35,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 63 transitions. [2020-12-01 14:58:35,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-01 14:58:35,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-01 14:58:35,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2020-12-01 14:58:35,736 INFO L715 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2020-12-01 14:58:35,736 INFO L595 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2020-12-01 14:58:35,736 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-12-01 14:58:35,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 63 transitions. [2020-12-01 14:58:35,737 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 14:58:35,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 14:58:35,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 14:58:35,738 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:35,738 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 14:58:35,738 INFO L794 eck$LassoCheckResult]: Stem: 1912#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 1909#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1910#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1917#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1918#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1919#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1920#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1952#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1951#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1950#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1949#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1948#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1947#L37-3 assume !(main_~i~1 < 5); 1916#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1901#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1902#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1903#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1904#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1946#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1944#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1942#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1940#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1938#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1936#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1934#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1932#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1930#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1928#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1926#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1924#L18-3 assume !(sep_~i~0 < 5); 1921#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1922#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1911#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1905#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1906#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1913#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1945#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1943#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1941#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1939#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1937#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1935#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1933#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1931#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1929#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1927#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1925#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1923#L18-8 assume !(sep_~i~0 < 5); 1907#L18-9 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1908#L25-1 main_#t~ret12 := sep_#res;main_~ret2~0 := main_#t~ret12;havoc main_#t~ret12;call main_#t~mem13 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem13;havoc main_#t~mem13;main_~i~2 := 0; 1914#L46-3 [2020-12-01 14:58:35,738 INFO L796 eck$LassoCheckResult]: Loop: 1914#L46-3 assume !!(main_~i~2 < 4);call main_#t~mem15 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~2), 4);call write~int(main_#t~mem15, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~2, 4);havoc main_#t~mem15; 1915#L46-2 main_#t~post14 := main_~i~2;main_~i~2 := 1 + main_#t~post14;havoc main_#t~post14; 1914#L46-3 [2020-12-01 14:58:35,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:35,738 INFO L82 PathProgramCache]: Analyzing trace with hash -866233935, now seen corresponding path program 1 times [2020-12-01 14:58:35,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:35,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905430421] [2020-12-01 14:58:35,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:35,828 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:35,959 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:35,976 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:35,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:35,978 INFO L82 PathProgramCache]: Analyzing trace with hash 3075, now seen corresponding path program 1 times [2020-12-01 14:58:35,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:35,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787057217] [2020-12-01 14:58:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:35,981 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:35,983 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:35,984 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:35,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:35,985 INFO L82 PathProgramCache]: Analyzing trace with hash 772846003, now seen corresponding path program 1 times [2020-12-01 14:58:35,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:35,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785689869] [2020-12-01 14:58:35,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:36,077 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:36,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:36,227 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:40,697 WARN L197 SmtUtils]: Spent 4.41 s on a formula simplification. DAG size of input: 494 DAG size of output: 338 [2020-12-01 14:58:41,581 WARN L197 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 140 [2020-12-01 14:58:41,585 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 14:58:41,585 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 14:58:41,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 14:58:41,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 14:58:41,586 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 14:58:41,586 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:41,586 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 14:58:41,586 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 14:58:41,586 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration14_Lasso [2020-12-01 14:58:41,586 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 14:58:41,586 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 14:58:41,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:41,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:41,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:41,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:41,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:41,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:41,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:41,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:41,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,167 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2020-12-01 14:58:42,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 14:58:42,945 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 14:58:42,945 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:42,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:42,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:42,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:42,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:42,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:42,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:42,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:42,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:42,975 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:42,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:42,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:42,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:42,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:42,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:42,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:42,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:42,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:43,011 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,036 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 14:58:43,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,113 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:43,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:43,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:43,136 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,165 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 14:58:43,221 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,223 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:43,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,224 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:43,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,235 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 14:58:43,274 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:43,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:43,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:43,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,302 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,303 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,306 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,330 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,330 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,332 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,355 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,355 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,359 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:43,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:43,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:43,382 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,404 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,418 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:43,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:43,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:43,442 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,466 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,466 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:43,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:43,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:43,494 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,515 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,517 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,545 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,574 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,580 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,580 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,586 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,609 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,609 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,632 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 14:58:43,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,634 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 14:58:43,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 14:58:43,635 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,659 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,663 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 14:58:43,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 14:58:43,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 14:58:43,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 14:58:43,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 14:58:43,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 14:58:43,694 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 14:58:43,715 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 14:58:43,766 INFO L443 ModelExtractionUtils]: Simplification made 24 calls to the SMT solver. [2020-12-01 14:58:43,766 INFO L444 ModelExtractionUtils]: 3 out of 22 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af2e9983-cb90-47a1-9d9a-0bf57c7bdd5d/bin/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 14:58:43,768 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 14:58:43,770 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 14:58:43,770 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 14:58:43,770 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~2, v_rep(select #length ULTIMATE.start_main_~#x~0.base)_3) = -16*ULTIMATE.start_main_~i~2 + 7*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_3 Supporting invariants [] [2020-12-01 14:58:43,889 INFO L297 tatePredicateManager]: 34 out of 34 supporting invariants were superfluous and have been removed [2020-12-01 14:58:43,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 14:58:43,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:43,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 14:58:43,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:44,047 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 14:58:44,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:58:44,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:44,067 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-12-01 14:58:44,068 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 63 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-12-01 14:58:44,079 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 63 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 54 states and 66 transitions. Complement of second has 4 states. [2020-12-01 14:58:44,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-12-01 14:58:44,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 14:58:44,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2020-12-01 14:58:44,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 50 letters. Loop has 2 letters. [2020-12-01 14:58:44,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 14:58:44,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 52 letters. Loop has 2 letters. [2020-12-01 14:58:44,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 14:58:44,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 50 letters. Loop has 4 letters. [2020-12-01 14:58:44,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 14:58:44,085 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 66 transitions. [2020-12-01 14:58:44,086 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 14:58:44,086 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 0 states and 0 transitions. [2020-12-01 14:58:44,086 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 14:58:44,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 14:58:44,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 14:58:44,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 14:58:44,087 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 14:58:44,087 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 14:58:44,087 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 14:58:44,087 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-12-01 14:58:44,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 14:58:44,087 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 14:58:44,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 14:58:44,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 02:58:44 BoogieIcfgContainer [2020-12-01 14:58:44,093 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 14:58:44,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 14:58:44,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 14:58:44,093 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 14:58:44,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:58:25" (3/4) ... [2020-12-01 14:58:44,096 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 14:58:44,096 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 14:58:44,097 INFO L168 Benchmark]: Toolchain (without parser) took 19257.42 ms. Allocated memory was 92.3 MB in the beginning and 207.6 MB in the end (delta: 115.3 MB). Free memory was 58.7 MB in the beginning and 153.2 MB in the end (delta: -94.5 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:44,097 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 67.8 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:58:44,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.81 ms. Allocated memory is still 92.3 MB. Free memory was 58.5 MB in the beginning and 68.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:44,098 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.19 ms. Allocated memory is still 92.3 MB. Free memory was 68.8 MB in the beginning and 67.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:44,098 INFO L168 Benchmark]: Boogie Preprocessor took 25.62 ms. Allocated memory is still 92.3 MB. Free memory was 67.1 MB in the beginning and 65.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:44,098 INFO L168 Benchmark]: RCFGBuilder took 650.79 ms. Allocated memory is still 92.3 MB. Free memory was 65.5 MB in the beginning and 47.1 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:44,099 INFO L168 Benchmark]: BuchiAutomizer took 18186.67 ms. Allocated memory was 92.3 MB in the beginning and 207.6 MB in the end (delta: 115.3 MB). Free memory was 47.1 MB in the beginning and 153.2 MB in the end (delta: -106.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:44,099 INFO L168 Benchmark]: Witness Printer took 2.99 ms. Allocated memory is still 207.6 MB. Free memory is still 153.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:58:44,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 67.8 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.81 ms. Allocated memory is still 92.3 MB. Free memory was 58.5 MB in the beginning and 68.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.19 ms. Allocated memory is still 92.3 MB. Free memory was 68.8 MB in the beginning and 67.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.62 ms. Allocated memory is still 92.3 MB. Free memory was 67.1 MB in the beginning and 65.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 650.79 ms. Allocated memory is still 92.3 MB. Free memory was 65.5 MB in the beginning and 47.1 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 18186.67 ms. Allocated memory was 92.3 MB in the beginning and 207.6 MB in the end (delta: 115.3 MB). Free memory was 47.1 MB in the beginning and 153.2 MB in the end (delta: -106.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Witness Printer took 2.99 ms. Allocated memory is still 207.6 MB. Free memory is still 153.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 14 terminating modules (11 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 9 * unknown-#length-unknown[x] + -8 * i and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 9 and consists of 4 locations. One deterministic module has affine ranking function -16 * i + 7 * unknown-#length-unknown[x] and consists of 3 locations. 11 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 18.1s and 15 iterations. TraceHistogramMax:5. Analysis of lassos took 16.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 14. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 63 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 56 states and ocurred in iteration 12. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 336 SDtfs, 308 SDslu, 699 SDs, 0 SdLazy, 318 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU10 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital262 mio100 ax100 hnf100 lsp92 ukn53 mio100 lsp46 div100 bol100 ite100 ukn100 eq169 hnf89 smp99 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...