./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/a.10-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/a.10-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fe0a03f8bb40d3c8ee514a7c216e0c7ba9f8c793 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:19:46,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:46,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:46,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:46,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:46,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:46,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:46,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:46,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:46,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:46,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:46,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:46,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:46,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:46,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:46,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:46,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:46,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:46,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:46,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:46,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:46,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:46,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:46,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:46,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:46,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:46,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:46,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:46,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:46,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:46,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:46,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:46,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:46,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:46,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:46,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:46,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:46,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:46,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:46,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:46,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:46,213 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:19:46,243 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:46,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:46,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:46,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:46,245 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:46,246 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:19:46,246 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:19:46,246 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:19:46,247 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:19:46,247 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:19:46,247 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:19:46,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:46,248 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:19:46,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:19:46,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:46,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:19:46,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:19:46,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:19:46,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:19:46,250 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:19:46,250 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:46,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:19:46,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:46,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:46,251 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:19:46,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:46,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:19:46,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:46,252 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:19:46,253 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:19:46,254 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_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe0a03f8bb40d3c8ee514a7c216e0c7ba9f8c793 [2020-11-28 03:19:46,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:46,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:46,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:46,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:46,576 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:46,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/a.10-alloca.i [2020-11-28 03:19:46,674 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/data/34c243801/da58e9be576045bfbca376c9da09e8f5/FLAG24acedc32 [2020-11-28 03:19:47,294 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:47,295 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/sv-benchmarks/c/termination-memory-alloca/a.10-alloca.i [2020-11-28 03:19:47,314 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/data/34c243801/da58e9be576045bfbca376c9da09e8f5/FLAG24acedc32 [2020-11-28 03:19:47,569 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/data/34c243801/da58e9be576045bfbca376c9da09e8f5 [2020-11-28 03:19:47,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:47,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:19:47,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:47,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:47,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:47,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:47" (1/1) ... [2020-11-28 03:19:47,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d34575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:47, skipping insertion in model container [2020-11-28 03:19:47,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:47" (1/1) ... [2020-11-28 03:19:47,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:47,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:48,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:48,045 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:48,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:48,144 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:48,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:48 WrapperNode [2020-11-28 03:19:48,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:48,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:48,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:19:48,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:19:48,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:48" (1/1) ... [2020-11-28 03:19:48,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:48" (1/1) ... [2020-11-28 03:19:48,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:48,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:48,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:48,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:48,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:48" (1/1) ... [2020-11-28 03:19:48,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:48" (1/1) ... [2020-11-28 03:19:48,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:48" (1/1) ... [2020-11-28 03:19:48,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:48" (1/1) ... [2020-11-28 03:19:48,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:48" (1/1) ... [2020-11-28 03:19:48,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:48" (1/1) ... [2020-11-28 03:19:48,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:48" (1/1) ... [2020-11-28 03:19:48,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:48,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:48,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:48,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:48,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:48,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:19:48,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:19:48,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:48,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:19:48,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:48,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:48,833 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:48,846 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 03:19:48,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:48 BoogieIcfgContainer [2020-11-28 03:19:48,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:48,849 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:19:48,850 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:19:48,856 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:19:48,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:19:48,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:19:47" (1/3) ... [2020-11-28 03:19:48,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c7e2d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:19:48, skipping insertion in model container [2020-11-28 03:19:48,881 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:19:48,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:48" (2/3) ... [2020-11-28 03:19:48,882 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c7e2d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:19:48, skipping insertion in model container [2020-11-28 03:19:48,882 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:19:48,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:48" (3/3) ... [2020-11-28 03:19:48,884 INFO L373 chiAutomizerObserver]: Analyzing ICFG a.10-alloca.i [2020-11-28 03:19:48,947 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:19:48,948 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:19:48,948 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:19:48,948 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:48,948 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:48,949 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:19:48,949 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:48,949 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:19:48,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-11-28 03:19:48,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:19:48,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:48,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:48,993 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:19:48,993 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:19:48,993 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:19:48,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-11-28 03:19:48,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:19:48,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:48,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:48,996 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:19:48,996 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:19:49,005 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet12, main_#t~nondet13, main_#t~ret14;test_fun_#in~x, test_fun_#in~y := main_#t~nondet12, main_#t~nondet13;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem11, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 11#L556-2true [2020-11-28 03:19:49,005 INFO L796 eck$LassoCheckResult]: Loop: 11#L556-2true call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 12#L555-1true assume !!!(test_fun_#t~mem5 == test_fun_#t~mem6);havoc test_fun_#t~mem6;havoc test_fun_#t~mem5;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 7#L556true assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem8;havoc test_fun_#t~mem7;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(1 + test_fun_#t~mem10, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 11#L556-2true [2020-11-28 03:19:49,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:49,013 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-28 03:19:49,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:49,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387757811] [2020-11-28 03:19:49,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:49,164 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:49,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:49,219 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:49,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:49,222 INFO L82 PathProgramCache]: Analyzing trace with hash 36907, now seen corresponding path program 1 times [2020-11-28 03:19:49,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:49,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452466935] [2020-11-28 03:19:49,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:49,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:49,254 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:49,259 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:49,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:49,264 INFO L82 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2020-11-28 03:19:49,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:49,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713506791] [2020-11-28 03:19:49,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:49,317 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:49,347 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:49,355 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:49,479 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-11-28 03:19:50,266 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 77 [2020-11-28 03:19:50,434 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-11-28 03:19:50,451 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:50,452 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:50,452 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:50,452 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:50,452 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:19:50,452 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:50,453 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:50,453 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:50,453 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.10-alloca.i_Iteration1_Lasso [2020-11-28 03:19:50,453 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:50,454 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:50,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:50,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:50,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:50,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:50,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:50,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:50,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:51,020 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2020-11-28 03:19:51,172 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-11-28 03:19:51,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:51,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:51,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:51,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:51,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:51,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:51,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:51,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:51,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:52,035 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:52,041 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:52,051 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 [2020-11-28 03:19:52,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:52,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:52,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:52,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:52,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:52,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:52,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:52,061 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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) [2020-11-28 03:19:52,117 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 [2020-11-28 03:19:52,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:52,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:52,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:52,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:52,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:52,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:52,122 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 [2020-11-28 03:19:52,131 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:52,177 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 [2020-11-28 03:19:52,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:52,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:52,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:52,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:52,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:52,184 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:52,184 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:52,186 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:52,219 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 [2020-11-28 03:19:52,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:52,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:52,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:52,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:52,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:52,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:19:52,233 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:52,273 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 [2020-11-28 03:19:52,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:52,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:52,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:52,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:52,280 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:52,281 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:19:52,289 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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) [2020-11-28 03:19:52,347 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 [2020-11-28 03:19:52,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:52,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:52,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:52,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:52,354 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:52,355 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 [2020-11-28 03:19:52,360 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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) [2020-11-28 03:19:52,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:52,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:52,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:52,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:52,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:52,427 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:52,427 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:19:52,447 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:19:52,601 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-28 03:19:52,602 INFO L444 ModelExtractionUtils]: 8 out of 28 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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) [2020-11-28 03:19:52,702 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:52,712 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:19:52,713 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:19:52,713 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1 + 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_1 Supporting invariants [] [2020-11-28 03:19:52,846 INFO L297 tatePredicateManager]: 20 out of 20 supporting invariants were superfluous and have been removed [2020-11-28 03:19:52,856 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:19:52,857 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:19:52,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:52,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:19:52,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:52,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 03:19:52,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:53,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:53,040 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-28 03:19:53,041 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 4 states. [2020-11-28 03:19:53,133 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 4 states. Result 31 states and 36 transitions. Complement of second has 10 states. [2020-11-28 03:19:53,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-28 03:19:53,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:19:53,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 15 transitions. [2020-11-28 03:19:53,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 2 letters. Loop has 3 letters. [2020-11-28 03:19:53,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:53,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 5 letters. Loop has 3 letters. [2020-11-28 03:19:53,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:53,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 2 letters. Loop has 6 letters. [2020-11-28 03:19:53,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:53,141 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2020-11-28 03:19:53,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:19:53,148 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 11 states and 14 transitions. [2020-11-28 03:19:53,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-11-28 03:19:53,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-28 03:19:53,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2020-11-28 03:19:53,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:19:53,152 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 03:19:53,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2020-11-28 03:19:53,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-28 03:19:53,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 03:19:53,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-11-28 03:19:53,184 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 03:19:53,184 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 03:19:53,184 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:19:53,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-11-28 03:19:53,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:19:53,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:53,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:53,188 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 03:19:53,188 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:19:53,190 INFO L794 eck$LassoCheckResult]: Stem: 170#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 168#L-1 havoc main_#res;havoc main_#t~nondet12, main_#t~nondet13, main_#t~ret14;test_fun_#in~x, test_fun_#in~y := main_#t~nondet12, main_#t~nondet13;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem11, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 169#L556-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 177#L555-1 assume !!!(test_fun_#t~mem5 == test_fun_#t~mem6);havoc test_fun_#t~mem6;havoc test_fun_#t~mem5;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 171#L556 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem8;havoc test_fun_#t~mem7;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(1 + test_fun_#t~mem9, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem9; 172#L556-2 [2020-11-28 03:19:53,190 INFO L796 eck$LassoCheckResult]: Loop: 172#L556-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 175#L555-1 assume !!!(test_fun_#t~mem5 == test_fun_#t~mem6);havoc test_fun_#t~mem6;havoc test_fun_#t~mem5;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 178#L556 assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem8;havoc test_fun_#t~mem7;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(1 + test_fun_#t~mem10, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 172#L556-2 [2020-11-28 03:19:53,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:53,191 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2020-11-28 03:19:53,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:53,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281817987] [2020-11-28 03:19:53,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:53,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:53,297 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:53,304 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:53,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:53,305 INFO L82 PathProgramCache]: Analyzing trace with hash 36907, now seen corresponding path program 2 times [2020-11-28 03:19:53,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:53,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479043232] [2020-11-28 03:19:53,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:53,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:53,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:53,341 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:53,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:53,342 INFO L82 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 1 times [2020-11-28 03:19:53,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:53,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999208153] [2020-11-28 03:19:53,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:53,610 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 21 [2020-11-28 03:19:53,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:53,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999208153] [2020-11-28 03:19:53,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568481630] [2020-11-28 03:19:53,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:19:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:53,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-28 03:19:53,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:53,809 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-11-28 03:19:53,816 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:19:53,819 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:19:53,819 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:19:53,819 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:8, output treesize:4 [2020-11-28 03:19:53,878 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 20 [2020-11-28 03:19:53,880 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:19:53,887 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:19:53,887 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:19:53,888 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:18 [2020-11-28 03:19:53,999 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2020-11-28 03:19:54,002 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:19:54,017 INFO L625 ElimStorePlain]: treesize reduction 5, result has 61.5 percent of original size [2020-11-28 03:19:54,020 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:19:54,020 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:44, output treesize:3 [2020-11-28 03:19:54,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:54,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:19:54,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-11-28 03:19:54,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335471405] [2020-11-28 03:19:54,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:54,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:19:54,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:19:54,129 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 10 states. [2020-11-28 03:19:54,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:54,297 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-11-28 03:19:54,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:19:54,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2020-11-28 03:19:54,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:19:54,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 13 transitions. [2020-11-28 03:19:54,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-28 03:19:54,300 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-28 03:19:54,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2020-11-28 03:19:54,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:19:54,301 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-11-28 03:19:54,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2020-11-28 03:19:54,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2020-11-28 03:19:54,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-28 03:19:54,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2020-11-28 03:19:54,302 INFO L714 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-11-28 03:19:54,302 INFO L594 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-11-28 03:19:54,303 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:19:54,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2020-11-28 03:19:54,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:19:54,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:54,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:54,304 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-28 03:19:54,304 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:19:54,304 INFO L794 eck$LassoCheckResult]: Stem: 232#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 230#L-1 havoc main_#res;havoc main_#t~nondet12, main_#t~nondet13, main_#t~ret14;test_fun_#in~x, test_fun_#in~y := main_#t~nondet12, main_#t~nondet13;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem11, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 231#L556-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 237#L555-1 [2020-11-28 03:19:54,304 INFO L796 eck$LassoCheckResult]: Loop: 237#L555-1 assume !!!(test_fun_#t~mem5 == test_fun_#t~mem6);havoc test_fun_#t~mem6;havoc test_fun_#t~mem5;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 233#L556 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem8;havoc test_fun_#t~mem7;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(1 + test_fun_#t~mem9, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem9; 234#L556-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 237#L555-1 [2020-11-28 03:19:54,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:54,305 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-11-28 03:19:54,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:54,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545245118] [2020-11-28 03:19:54,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:54,320 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:54,334 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:54,348 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:54,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:54,349 INFO L82 PathProgramCache]: Analyzing trace with hash 41795, now seen corresponding path program 1 times [2020-11-28 03:19:54,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:54,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278444543] [2020-11-28 03:19:54,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:54,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:54,376 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:54,378 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:54,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:54,379 INFO L82 PathProgramCache]: Analyzing trace with hash 889571264, now seen corresponding path program 2 times [2020-11-28 03:19:54,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:54,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113874313] [2020-11-28 03:19:54,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:54,410 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:54,447 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:54,464 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:54,987 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2020-11-28 03:19:55,213 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-28 03:19:55,218 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:55,218 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:55,218 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:55,218 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:55,218 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:19:55,218 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:55,218 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:55,219 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:55,219 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.10-alloca.i_Iteration3_Lasso [2020-11-28 03:19:55,219 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:55,219 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:55,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:55,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:55,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:55,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:55,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:55,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:55,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:55,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:55,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:55,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:55,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:55,759 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2020-11-28 03:19:55,923 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-11-28 03:19:55,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:55,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:55,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:56,578 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:56,578 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:56,622 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 [2020-11-28 03:19:56,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:56,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:56,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:56,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:56,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:56,625 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:56,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:56,627 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:56,659 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 [2020-11-28 03:19:56,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:56,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:56,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:56,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:56,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:56,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:56,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:56,664 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:56,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:19:56,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:56,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:56,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:56,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:56,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:56,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:56,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:56,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:56,723 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 [2020-11-28 03:19:56,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:56,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:56,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:56,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:56,729 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:56,730 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:19:56,735 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:56,762 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 [2020-11-28 03:19:56,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:56,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:56,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:56,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:56,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:56,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:19:56,794 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:56,840 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 [2020-11-28 03:19:56,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:56,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:56,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:56,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:56,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:56,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:56,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:56,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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) [2020-11-28 03:19:56,895 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:19:56,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:56,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:56,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:56,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:56,900 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:56,901 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:56,905 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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) [2020-11-28 03:19:56,963 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:56,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:56,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:56,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:56,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:56,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:56,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:56,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:56,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:57,005 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 [2020-11-28 03:19:57,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:57,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:57,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:57,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:57,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:57,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:57,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:57,009 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:57,039 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 [2020-11-28 03:19:57,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:57,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:57,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:57,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:57,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:57,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:57,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:57,043 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:57,075 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 [2020-11-28 03:19:57,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:57,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:57,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:57,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:57,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:57,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:19:57,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:57,131 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 [2020-11-28 03:19:57,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:57,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:57,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:57,133 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:57,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:57,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:19:57,145 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:57,174 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 [2020-11-28 03:19:57,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:57,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:57,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:57,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:57,181 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:57,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:19:57,194 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:57,220 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 [2020-11-28 03:19:57,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:57,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:57,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:57,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:57,224 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:57,224 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:19:57,228 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:57,258 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 [2020-11-28 03:19:57,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:57,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:57,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:57,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:57,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:57,261 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:19:57,265 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:57,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:19:57,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:57,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:57,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:57,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:57,297 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:57,297 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:19:57,318 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:57,356 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 [2020-11-28 03:19:57,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:57,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:57,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:57,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:57,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:57,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:19:57,371 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:57,401 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 [2020-11-28 03:19:57,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:57,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:57,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:57,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:57,414 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:19:57,414 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:19:57,450 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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 [2020-11-28 03:19:57,492 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:19:57,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:57,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:57,494 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 03:19:57,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:57,524 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-11-28 03:19:57,525 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-28 03:19:57,581 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:19:57,705 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2020-11-28 03:19:57,706 INFO L444 ModelExtractionUtils]: 30 out of 56 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/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) [2020-11-28 03:19:57,711 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:57,717 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2020-11-28 03:19:57,718 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:19:57,718 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_#t~mem5, ULTIMATE.start_test_fun_#t~mem6) = 1*ULTIMATE.start_test_fun_#t~mem5 - 1*ULTIMATE.start_test_fun_#t~mem6 Supporting invariants [1*ULTIMATE.start_test_fun_#t~mem5 - 1*ULTIMATE.start_test_fun_#t~mem6 - 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_2 + 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_2 >= 0] [2020-11-28 03:19:57,833 INFO L297 tatePredicateManager]: 20 out of 21 supporting invariants were superfluous and have been removed [2020-11-28 03:19:57,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:57,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:19:57,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:57,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 03:19:57,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:58,020 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:19:58,020 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 63 [2020-11-28 03:19:58,024 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-28 03:19:58,025 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-28 03:19:58,034 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:19:58,073 INFO L625 ElimStorePlain]: treesize reduction 59, result has 39.2 percent of original size [2020-11-28 03:19:58,074 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:19:58,074 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2020-11-28 03:19:58,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:58,101 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-28 03:19:58,101 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-11-28 03:19:58,155 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 18 states and 21 transitions. Complement of second has 7 states. [2020-11-28 03:19:58,155 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 [2020-11-28 03:19:58,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:19:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2020-11-28 03:19:58,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 3 letters. Loop has 3 letters. [2020-11-28 03:19:58,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:58,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 3 letters. [2020-11-28 03:19:58,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:58,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 3 letters. Loop has 6 letters. [2020-11-28 03:19:58,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:58,157 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2020-11-28 03:19:58,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:19:58,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 11 states and 12 transitions. [2020-11-28 03:19:58,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-28 03:19:58,159 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-28 03:19:58,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 12 transitions. [2020-11-28 03:19:58,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:19:58,160 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-11-28 03:19:58,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 12 transitions. [2020-11-28 03:19:58,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2020-11-28 03:19:58,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-28 03:19:58,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-11-28 03:19:58,161 INFO L714 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-11-28 03:19:58,161 INFO L594 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-11-28 03:19:58,161 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:19:58,162 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2020-11-28 03:19:58,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:19:58,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:58,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:58,163 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-11-28 03:19:58,163 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:19:58,163 INFO L794 eck$LassoCheckResult]: Stem: 391#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 389#L-1 havoc main_#res;havoc main_#t~nondet12, main_#t~nondet13, main_#t~ret14;test_fun_#in~x, test_fun_#in~y := main_#t~nondet12, main_#t~nondet13;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem11, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 390#L556-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 397#L555-1 assume !!!(test_fun_#t~mem5 == test_fun_#t~mem6);havoc test_fun_#t~mem6;havoc test_fun_#t~mem5;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 394#L556 assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem8;havoc test_fun_#t~mem7;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(1 + test_fun_#t~mem10, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 395#L556-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 396#L555-1 [2020-11-28 03:19:58,163 INFO L796 eck$LassoCheckResult]: Loop: 396#L555-1 assume !!!(test_fun_#t~mem5 == test_fun_#t~mem6);havoc test_fun_#t~mem6;havoc test_fun_#t~mem5;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 392#L556 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem8;havoc test_fun_#t~mem7;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(1 + test_fun_#t~mem9, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem9; 393#L556-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 396#L555-1 [2020-11-28 03:19:58,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:58,164 INFO L82 PathProgramCache]: Analyzing trace with hash 889571326, now seen corresponding path program 2 times [2020-11-28 03:19:58,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:58,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859758960] [2020-11-28 03:19:58,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:58,179 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:58,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:58,199 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:58,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:58,200 INFO L82 PathProgramCache]: Analyzing trace with hash 41795, now seen corresponding path program 2 times [2020-11-28 03:19:58,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:58,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994319736] [2020-11-28 03:19:58,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:58,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:58,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:58,214 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:58,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:58,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1271168550, now seen corresponding path program 2 times [2020-11-28 03:19:58,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:58,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235021647] [2020-11-28 03:19:58,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:58,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:58,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235021647] [2020-11-28 03:19:58,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903569529] [2020-11-28 03:19:58,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5873ed59-cdc4-448d-a2a4-ca4a376317a5/bin/uautomizer/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:19:58,403 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 03:19:58,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:19:58,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-28 03:19:58,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:58,422 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-11-28 03:19:58,426 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:19:58,434 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:19:58,435 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:19:58,435 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:8, output treesize:4 [2020-11-28 03:19:58,511 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 24 [2020-11-28 03:19:58,513 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:19:58,525 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:19:58,525 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:19:58,525 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:32 [2020-11-28 03:19:58,573 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2020-11-28 03:19:58,576 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:19:58,593 INFO L625 ElimStorePlain]: treesize reduction 5, result has 66.7 percent of original size [2020-11-28 03:19:58,595 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:19:58,595 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:46, output treesize:5 [2020-11-28 03:19:58,611 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:58,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:19:58,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-11-28 03:19:58,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130539633] [2020-11-28 03:19:58,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:58,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:19:58,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:19:58,698 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand 9 states. [2020-11-28 03:19:58,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:58,867 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-11-28 03:19:58,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:19:58,868 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 10 transitions. [2020-11-28 03:19:58,868 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:19:58,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2020-11-28 03:19:58,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:19:58,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:19:58,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:19:58,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:19:58,869 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:58,869 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:58,869 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:58,869 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 03:19:58,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:19:58,870 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:19:58,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:19:58,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:19:58 BoogieIcfgContainer [2020-11-28 03:19:58,874 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:19:58,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:58,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:58,875 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:58,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:48" (3/4) ... [2020-11-28 03:19:58,878 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:19:58,879 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:58,880 INFO L168 Benchmark]: Toolchain (without parser) took 11305.25 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 73.6 MB in the beginning and 111.0 MB in the end (delta: -37.5 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:58,880 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 75.5 MB. Free memory was 35.7 MB in the beginning and 35.6 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:58,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.46 ms. Allocated memory is still 109.1 MB. Free memory was 73.4 MB in the beginning and 73.7 MB in the end (delta: -322.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:58,882 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.53 ms. Allocated memory is still 109.1 MB. Free memory was 73.7 MB in the beginning and 72.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:58,882 INFO L168 Benchmark]: Boogie Preprocessor took 56.20 ms. Allocated memory is still 109.1 MB. Free memory was 72.1 MB in the beginning and 71.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:58,883 INFO L168 Benchmark]: RCFGBuilder took 589.23 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 56.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:58,883 INFO L168 Benchmark]: BuchiAutomizer took 10025.06 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 55.8 MB in the beginning and 111.0 MB in the end (delta: -55.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:58,884 INFO L168 Benchmark]: Witness Printer took 3.71 ms. Allocated memory is still 159.4 MB. Free memory is still 111.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:58,887 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 75.5 MB. Free memory was 35.7 MB in the beginning and 35.6 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 563.46 ms. Allocated memory is still 109.1 MB. Free memory was 73.4 MB in the beginning and 73.7 MB in the end (delta: -322.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.53 ms. Allocated memory is still 109.1 MB. Free memory was 73.7 MB in the beginning and 72.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.20 ms. Allocated memory is still 109.1 MB. Free memory was 72.1 MB in the beginning and 71.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 589.23 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 56.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10025.06 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 55.8 MB in the beginning and 111.0 MB in the end (delta: -55.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.71 ms. Allocated memory is still 159.4 MB. Free memory is still 111.0 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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x_ref][x_ref] + unknown-#memory_int-unknown[y_ref][y_ref] and consists of 6 locations. One deterministic module has affine ranking function aux-x_ref-aux + -1 * aux-y_ref-aux and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 8.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 11 SDslu, 18 SDs, 0 SdLazy, 107 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital262 mio100 ax106 hnf99 lsp91 ukn63 mio100 lsp32 div100 bol100 ite100 ukn100 eq195 hnf87 smp100 dnf115 smp100 tf100 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 228ms VariablesStem: 10 VariablesLoop: 8 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...