./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD --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 682a48acff360d61f631a6f73c43d35eb5554cb5c1e29a6f88508c15be8e86ce .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:55:59,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:55:59,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:55:59,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:55:59,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:55:59,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:55:59,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:55:59,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:55:59,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:55:59,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:55:59,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:55:59,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:55:59,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:55:59,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:55:59,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:55:59,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:55:59,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:55:59,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:55:59,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:55:59,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:55:59,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:55:59,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:55:59,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:55:59,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:55:59,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:55:59,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:55:59,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:55:59,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:55:59,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:55:59,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:55:59,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:55:59,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:55:59,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:55:59,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:55:59,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:55:59,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:55:59,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:55:59,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:55:59,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:55:59,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:55:59,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:55:59,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 22:55:59,281 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:55:59,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:55:59,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:55:59,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:55:59,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:55:59,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:55:59,288 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:55:59,288 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 22:55:59,288 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 22:55:59,289 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 22:55:59,290 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 22:55:59,290 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 22:55:59,290 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 22:55:59,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:55:59,291 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:55:59,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:55:59,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:55:59,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 22:55:59,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 22:55:59,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 22:55:59,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:55:59,292 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 22:55:59,292 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:55:59,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 22:55:59,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:55:59,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:55:59,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:55:59,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:55:59,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:55:59,296 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 22:55:59,296 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_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 682a48acff360d61f631a6f73c43d35eb5554cb5c1e29a6f88508c15be8e86ce [2021-10-28 22:55:59,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:55:59,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:55:59,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:55:59,608 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:55:59,609 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:55:59,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i [2021-10-28 22:55:59,681 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/data/bd28af7b5/d2441a9d8d914b7ea8811b355a42da9e/FLAG51acc9795 [2021-10-28 22:56:00,133 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:56:00,134 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i [2021-10-28 22:56:00,144 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/data/bd28af7b5/d2441a9d8d914b7ea8811b355a42da9e/FLAG51acc9795 [2021-10-28 22:56:00,512 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/data/bd28af7b5/d2441a9d8d914b7ea8811b355a42da9e [2021-10-28 22:56:00,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:56:00,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:56:00,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:56:00,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:56:00,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:56:00,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:56:00" (1/1) ... [2021-10-28 22:56:00,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c931d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:00, skipping insertion in model container [2021-10-28 22:56:00,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:56:00" (1/1) ... [2021-10-28 22:56:00,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:56:00,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:56:00,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:56:00,740 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:56:00,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:56:00,777 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:56:00,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:00 WrapperNode [2021-10-28 22:56:00,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:56:00,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:56:00,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:56:00,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:56:00,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:00" (1/1) ... [2021-10-28 22:56:00,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:00" (1/1) ... [2021-10-28 22:56:00,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:56:00,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:56:00,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:56:00,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:56:00,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:00" (1/1) ... [2021-10-28 22:56:00,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:00" (1/1) ... [2021-10-28 22:56:00,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:00" (1/1) ... [2021-10-28 22:56:00,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:00" (1/1) ... [2021-10-28 22:56:00,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:00" (1/1) ... [2021-10-28 22:56:00,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:00" (1/1) ... [2021-10-28 22:56:00,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:00" (1/1) ... [2021-10-28 22:56:00,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:56:00,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:56:00,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:56:00,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:56:00,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:00" (1/1) ... [2021-10-28 22:56:00,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:00,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:00,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:00,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 22:56:00,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:56:00,917 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2021-10-28 22:56:00,917 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2021-10-28 22:56:00,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 22:56:00,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:56:00,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:56:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 22:56:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:56:01,199 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:56:01,199 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 22:56:01,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:56:01 BoogieIcfgContainer [2021-10-28 22:56:01,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:56:01,202 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 22:56:01,202 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 22:56:01,218 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 22:56:01,219 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:56:01,219 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 10:56:00" (1/3) ... [2021-10-28 22:56:01,236 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60296356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:56:01, skipping insertion in model container [2021-10-28 22:56:01,237 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:56:01,237 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:00" (2/3) ... [2021-10-28 22:56:01,237 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60296356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:56:01, skipping insertion in model container [2021-10-28 22:56:01,237 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:56:01,237 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:56:01" (3/3) ... [2021-10-28 22:56:01,239 INFO L389 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex9.i [2021-10-28 22:56:01,300 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 22:56:01,300 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 22:56:01,300 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 22:56:01,300 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 22:56:01,300 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 22:56:01,300 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 22:56:01,301 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 22:56:01,301 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 22:56:01,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 22:56:01,334 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 22:56:01,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:56:01,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:56:01,340 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 22:56:01,341 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:01,341 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 22:56:01,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 22:56:01,344 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 22:56:01,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:56:01,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:56:01,345 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 22:56:01,345 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:01,351 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 11#L29-3true [2021-10-28 22:56:01,352 INFO L793 eck$LassoCheckResult]: Loop: 11#L29-3true call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 8#L29-1true assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 9#L33true call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 14#recENTRYtrue ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 12#L9true assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 16#recFINALtrue assume true; 15#recEXITtrue >#33#return; 6#L33-1true havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem12 := read~int(main_~pp~0.base, main_~pp~0.offset, 4);call write~int(main_#t~mem11 + main_#t~mem12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem11;havoc main_#t~mem12; 11#L29-3true [2021-10-28 22:56:01,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:01,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2021-10-28 22:56:01,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:01,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843612072] [2021-10-28 22:56:01,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:01,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:01,465 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:56:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:01,500 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:56:01,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:01,503 INFO L85 PathProgramCache]: Analyzing trace with hash 51331199, now seen corresponding path program 1 times [2021-10-28 22:56:01,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:01,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945875997] [2021-10-28 22:56:01,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:01,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:01,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:56:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:01,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:56:01,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:56:01,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945875997] [2021-10-28 22:56:01,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945875997] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:56:01,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:56:01,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:56:01,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076379119] [2021-10-28 22:56:01,753 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 22:56:01,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:56:01,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:56:01,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:56:01,778 INFO L87 Difference]: Start difference. First operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 22:56:01,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:56:01,882 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2021-10-28 22:56:01,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 22:56:01,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 20 transitions. [2021-10-28 22:56:01,889 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 22:56:01,895 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 16 transitions. [2021-10-28 22:56:01,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 22:56:01,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 22:56:01,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2021-10-28 22:56:01,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:56:01,899 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-10-28 22:56:01,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2021-10-28 22:56:01,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-28 22:56:01,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 22:56:01,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-10-28 22:56:01,927 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-10-28 22:56:01,927 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-10-28 22:56:01,928 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 22:56:01,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 16 transitions. [2021-10-28 22:56:01,929 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 22:56:01,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:56:01,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:56:01,930 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 22:56:01,931 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:01,931 INFO L791 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 56#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 57#L29-3 [2021-10-28 22:56:01,932 INFO L793 eck$LassoCheckResult]: Loop: 57#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 58#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 61#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 66#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 59#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 60#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 66#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 59#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 62#recFINAL assume true; 67#recEXIT >#31#return; 63#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 64#recFINAL assume true; 68#recEXIT >#33#return; 65#L33-1 havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem12 := read~int(main_~pp~0.base, main_~pp~0.offset, 4);call write~int(main_#t~mem11 + main_#t~mem12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem11;havoc main_#t~mem12; 57#L29-3 [2021-10-28 22:56:01,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:01,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 2 times [2021-10-28 22:56:01,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:01,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550947787] [2021-10-28 22:56:01,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:01,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:01,952 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:56:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:01,985 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:56:01,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:01,988 INFO L85 PathProgramCache]: Analyzing trace with hash 198344305, now seen corresponding path program 1 times [2021-10-28 22:56:01,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:01,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263207872] [2021-10-28 22:56:01,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:01,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:02,044 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:56:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:02,105 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:56:02,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:02,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1849555021, now seen corresponding path program 1 times [2021-10-28 22:56:02,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:02,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481474705] [2021-10-28 22:56:02,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:02,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:02,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 22:56:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:02,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:56:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:02,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 22:56:02,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:56:02,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481474705] [2021-10-28 22:56:02,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481474705] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:56:02,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503690834] [2021-10-28 22:56:02,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:02,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:56:02,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:02,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:56:02,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 22:56:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:02,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 22:56:02,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:56:02,450 INFO L388 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 [2021-10-28 22:56:02,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 42 treesize of output 34 [2021-10-28 22:56:02,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 22:56:02,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503690834] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:56:02,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:56:02,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2021-10-28 22:56:02,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109601231] [2021-10-28 22:56:04,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:56:04,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 22:56:04,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-28 22:56:04,108 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. cyclomatic complexity: 4 Second operand has 12 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-28 22:56:04,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:56:04,209 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-10-28 22:56:04,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 22:56:04,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2021-10-28 22:56:04,211 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 22:56:04,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 19 transitions. [2021-10-28 22:56:04,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-28 22:56:04,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-28 22:56:04,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2021-10-28 22:56:04,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:56:04,213 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-28 22:56:04,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2021-10-28 22:56:04,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 22:56:04,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 22:56:04,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-10-28 22:56:04,216 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-28 22:56:04,217 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-28 22:56:04,217 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 22:56:04,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 19 transitions. [2021-10-28 22:56:04,218 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 22:56:04,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:56:04,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:56:04,219 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 22:56:04,219 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:04,219 INFO L791 eck$LassoCheckResult]: Stem: 168#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 169#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 170#L29-3 [2021-10-28 22:56:04,219 INFO L793 eck$LassoCheckResult]: Loop: 170#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 171#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 173#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 179#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 172#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 174#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 179#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 172#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 174#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 179#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 172#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 175#recFINAL assume true; 180#recEXIT >#31#return; 176#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 177#recFINAL assume true; 184#recEXIT >#31#return; 182#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 183#recFINAL assume true; 181#recEXIT >#33#return; 178#L33-1 havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem12 := read~int(main_~pp~0.base, main_~pp~0.offset, 4);call write~int(main_#t~mem11 + main_#t~mem12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem11;havoc main_#t~mem12; 170#L29-3 [2021-10-28 22:56:04,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:04,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 3 times [2021-10-28 22:56:04,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:04,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182764916] [2021-10-28 22:56:04,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:04,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:04,230 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:56:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:04,240 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:56:04,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:04,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1148543297, now seen corresponding path program 2 times [2021-10-28 22:56:04,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:04,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225513192] [2021-10-28 22:56:04,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:04,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:04,267 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:56:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:04,297 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:56:04,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:04,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1421169023, now seen corresponding path program 2 times [2021-10-28 22:56:04,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:04,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453651723] [2021-10-28 22:56:04,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:04,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:04,331 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:56:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:04,392 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:56:06,825 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:56:06,826 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:56:06,826 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:56:06,826 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:56:06,826 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:56:06,826 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:06,827 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:56:06,827 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:56:06,827 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex9.i_Iteration3_Lasso [2021-10-28 22:56:06,827 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:56:06,827 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:56:06,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:06,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:06,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:06,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:06,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:06,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:06,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:06,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:06,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:06,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:06,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:07,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:07,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:07,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:07,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:07,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:07,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:07,417 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:56:07,423 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:56:07,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:07,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:07,426 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:07,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:07,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:07,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:07,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:07,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:07,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:07,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 22:56:07,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:07,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:07,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:07,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:07,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:07,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:07,528 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:07,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:07,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:07,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:07,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:07,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:07,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:07,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:07,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:07,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 22:56:07,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:07,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:07,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:07,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:07,597 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:07,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:07,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:07,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:07,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:07,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:07,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:07,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:07,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:07,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 22:56:07,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:07,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:07,664 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:07,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:07,665 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:07,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 22:56:07,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:07,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:07,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:07,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:07,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:07,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:07,679 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:07,679 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:07,691 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:07,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:07,728 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:07,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:07,729 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:07,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 22:56:07,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:07,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:07,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:07,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:07,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:07,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:07,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:07,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:07,758 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:07,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:07,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:07,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:07,788 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:07,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 22:56:07,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:07,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:07,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:07,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:07,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:07,806 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:56:07,806 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:56:07,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:07,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:07,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:07,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:07,868 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:07,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 22:56:07,872 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:07,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:07,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:07,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:07,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:07,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:56:07,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:56:07,902 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:07,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:07,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:07,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:07,944 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:07,950 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:07,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:07,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:07,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:07,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:07,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:07,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:07,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:07,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 22:56:07,977 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:07,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:07,998 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:07,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:07,999 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:08,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 22:56:08,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:08,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:08,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:08,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:08,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:08,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:08,010 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:08,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:08,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:08,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:08,030 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:08,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:08,031 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:08,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 22:56:08,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:08,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:08,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:08,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:08,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:08,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:08,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:08,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:08,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:08,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:08,063 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:08,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:08,064 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:08,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 22:56:08,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:08,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:08,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:08,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:08,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:08,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:56:08,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:56:08,110 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:08,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:08,132 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:08,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:08,132 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:08,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 22:56:08,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:08,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:08,143 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-28 22:56:08,143 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2021-10-28 22:56:08,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:08,182 INFO L401 nArgumentSynthesizer]: We have 72 Motzkin's Theorem applications. [2021-10-28 22:56:08,182 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2021-10-28 22:56:08,245 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:08,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:08,281 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:08,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:08,282 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:08,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:08,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:08,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:08,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:08,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:08,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:56:08,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:56:08,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 22:56:08,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:08,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:08,352 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:08,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:08,353 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:08,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:08,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:08,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:08,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:08,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:08,372 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:56:08,372 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:56:08,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 22:56:08,388 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:56:08,405 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-28 22:56:08,406 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-28 22:56:08,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:08,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:08,432 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:08,496 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:56:08,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 22:56:08,521 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:56:08,521 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:56:08,522 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0.base) ULTIMATE.start_main_~qq~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0.base) ULTIMATE.start_main_~qq~0.offset)_1 Supporting invariants [] [2021-10-28 22:56:08,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:08,598 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-10-28 22:56:08,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:08,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 22:56:08,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:56:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:08,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-28 22:56:08,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:56:08,748 INFO L354 Elim1Store]: treesize reduction 17, result has 50.0 percent of original size [2021-10-28 22:56:08,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 31 [2021-10-28 22:56:08,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:10,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2021-10-28 22:56:11,748 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 22:56:11,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 40 [2021-10-28 22:56:12,004 INFO L354 Elim1Store]: treesize reduction 36, result has 54.4 percent of original size [2021-10-28 22:56:12,004 INFO L388 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 3 case distinctions, treesize of input 69 treesize of output 91 [2021-10-28 22:56:13,230 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 22:56:13,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-10-28 22:56:13,321 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 22:56:13,324 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 15 loop predicates [2021-10-28 22:56:13,325 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 11 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 22:56:45,486 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4. Second operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 11 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Result 65 states and 74 transitions. Complement of second has 37 states. [2021-10-28 22:56:45,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 9 non-accepting loop states 1 accepting loop states [2021-10-28 22:56:45,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 11 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 22:56:45,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-10-28 22:56:45,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 16 transitions. Stem has 2 letters. Loop has 20 letters. [2021-10-28 22:56:45,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:56:45,491 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 22:56:45,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:45,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 22:56:45,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:56:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:45,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-28 22:56:45,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:56:45,658 INFO L354 Elim1Store]: treesize reduction 17, result has 50.0 percent of original size [2021-10-28 22:56:45,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 31 [2021-10-28 22:56:46,670 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-10-28 22:56:46,670 INFO L388 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 3 case distinctions, treesize of input 87 treesize of output 81 [2021-10-28 22:56:46,704 INFO L354 Elim1Store]: treesize reduction 32, result has 34.7 percent of original size [2021-10-28 22:56:46,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 91 [2021-10-28 22:56:46,823 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 22:56:46,824 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 13 loop predicates [2021-10-28 22:56:46,824 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 22:56:49,062 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4. Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Result 69 states and 79 transitions. Complement of second has 33 states. [2021-10-28 22:56:49,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 9 non-accepting loop states 1 accepting loop states [2021-10-28 22:56:49,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 22:56:49,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 18 transitions. [2021-10-28 22:56:49,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 18 transitions. Stem has 2 letters. Loop has 20 letters. [2021-10-28 22:56:49,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:56:49,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 18 transitions. Stem has 22 letters. Loop has 20 letters. [2021-10-28 22:56:49,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:56:49,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 18 transitions. Stem has 2 letters. Loop has 40 letters. [2021-10-28 22:56:49,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:56:49,068 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 79 transitions. [2021-10-28 22:56:49,072 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-10-28 22:56:49,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 52 states and 62 transitions. [2021-10-28 22:56:49,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-28 22:56:49,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-10-28 22:56:49,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 62 transitions. [2021-10-28 22:56:49,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:56:49,076 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 62 transitions. [2021-10-28 22:56:49,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 62 transitions. [2021-10-28 22:56:49,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-28 22:56:49,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 38 states have internal predecessors, (40), 8 states have call successors, (8), 5 states have call predecessors, (8), 9 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2021-10-28 22:56:49,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2021-10-28 22:56:49,084 INFO L704 BuchiCegarLoop]: Abstraction has 52 states and 62 transitions. [2021-10-28 22:56:49,084 INFO L587 BuchiCegarLoop]: Abstraction has 52 states and 62 transitions. [2021-10-28 22:56:49,084 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 22:56:49,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 62 transitions. [2021-10-28 22:56:49,086 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-10-28 22:56:49,086 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:56:49,086 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:56:49,087 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:49,087 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:56:49,087 INFO L791 eck$LassoCheckResult]: Stem: 605#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 606#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 628#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 604#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 623#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 651#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 649#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 609#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 621#recENTRY [2021-10-28 22:56:49,087 INFO L793 eck$LassoCheckResult]: Loop: 621#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 607#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 608#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 621#recENTRY [2021-10-28 22:56:49,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:49,088 INFO L85 PathProgramCache]: Analyzing trace with hash -15910302, now seen corresponding path program 1 times [2021-10-28 22:56:49,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:49,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855945990] [2021-10-28 22:56:49,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:49,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:49,106 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:56:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:49,119 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:56:49,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:49,120 INFO L85 PathProgramCache]: Analyzing trace with hash 29945, now seen corresponding path program 1 times [2021-10-28 22:56:49,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:49,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559845461] [2021-10-28 22:56:49,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:49,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:49,126 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:56:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:49,131 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:56:49,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:49,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1537404168, now seen corresponding path program 2 times [2021-10-28 22:56:49,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:49,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490376101] [2021-10-28 22:56:49,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:49,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:49,146 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:56:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:56:49,161 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:56:51,004 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:56:51,004 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:56:51,004 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:56:51,004 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:56:51,004 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:56:51,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:51,005 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:56:51,005 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:56:51,005 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex9.i_Iteration4_Lasso [2021-10-28 22:56:51,005 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:56:51,005 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:56:51,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:56:51,562 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:56:51,562 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:56:51,562 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:51,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:51,570 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:51,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:51,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:51,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:51,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:51,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:51,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:51,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 22:56:51,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:51,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:51,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:51,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:51,636 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:51,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:51,637 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:51,643 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:51,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:51,652 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:51,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:51,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:51,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:51,653 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:51,653 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:51,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 22:56:51,664 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:51,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:51,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:51,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:51,704 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:51,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:51,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:51,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:51,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:51,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:51,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:51,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:51,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:51,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 22:56:51,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:51,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:51,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:51,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:51,764 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:51,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 22:56:51,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:51,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:51,775 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:51,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:51,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:51,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:51,776 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:51,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:51,790 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:51,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:51,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:51,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:51,810 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:51,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:51,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 22:56:51,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:51,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:51,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:51,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:51,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:51,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:51,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:51,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:51,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:51,844 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:51,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:51,845 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:51,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 22:56:51,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:51,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:51,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:51,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:51,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:51,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:51,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:51,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:51,857 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:51,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-28 22:56:51,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:51,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:51,877 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:51,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 22:56:51,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:51,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:51,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:51,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:51,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:51,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:51,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:51,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:51,889 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:51,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:51,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:51,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:51,916 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:51,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 22:56:51,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:51,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:51,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:51,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:51,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:51,927 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:56:51,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:56:51,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:51,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:51,952 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:51,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:51,953 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:51,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 22:56:51,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:51,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:51,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:51,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:51,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:51,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:51,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:51,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:51,971 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:51,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:51,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:51,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:51,995 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:51,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 22:56:51,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:52,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:52,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:52,005 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:52,028 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,029 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 22:56:52,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:52,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:52,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:52,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:52,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,061 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 22:56:52,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:52,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:52,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:52,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:52,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,092 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 22:56:52,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:52,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,101 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:52,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:52,102 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:52,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,129 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 22:56:52,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:52,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:52,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:52,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:52,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,163 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 22:56:52,166 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:52,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:52,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:52,174 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:52,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,200 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 22:56:52,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:52,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:52,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:52,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:52,246 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,247 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 22:56:52,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:52,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:52,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:52,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:52,304 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,304 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 22:56:52,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:52,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,316 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:52,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:52,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-28 22:56:52,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,338 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 22:56:52,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:52,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:52,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:52,348 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:52,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,372 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 22:56:52,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:52,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:52,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:52,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:52,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,407 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 22:56:52,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:52,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:52,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:52,418 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-28 22:56:52,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,439 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 22:56:52,440 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,449 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:56:52,449 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:56:52,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:52,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,514 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:56:52,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:56:52,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 22:56:52,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-10-28 22:56:52,577 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,578 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 22:56:52,580 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:56:52,589 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:56:52,591 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:56:52,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-28 22:56:52,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,616 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 22:56:52,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:56:52,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:56:52,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:56:52,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:56:52,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:56:52,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:56:52,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:56:52,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:56:52,635 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:56:52,637 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 22:56:52,638 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 22:56:52,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:56:52,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:52,639 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:52,644 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:56:52,644 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 22:56:52,644 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:56:52,645 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_#in~i) = 2*rec_#in~i + 1 Supporting invariants [] [2021-10-28 22:56:52,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 22:56:52,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:52,668 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2021-10-28 22:56:52,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:52,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 22:56:52,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:56:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:52,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 22:56:52,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:56:52,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:56:52,809 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 [2021-10-28 22:56:52,809 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 62 transitions. cyclomatic complexity: 15 Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:52,872 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 62 transitions. cyclomatic complexity: 15. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 98 states and 123 transitions. Complement of second has 13 states. [2021-10-28 22:56:52,872 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 [2021-10-28 22:56:52,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:52,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-10-28 22:56:52,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-28 22:56:52,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:56:52,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 11 letters. Loop has 3 letters. [2021-10-28 22:56:52,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:56:52,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 8 letters. Loop has 6 letters. [2021-10-28 22:56:52,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:56:52,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 123 transitions. [2021-10-28 22:56:52,880 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-10-28 22:56:52,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 78 states and 100 transitions. [2021-10-28 22:56:52,884 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-10-28 22:56:52,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2021-10-28 22:56:52,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 100 transitions. [2021-10-28 22:56:52,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:56:52,885 INFO L681 BuchiCegarLoop]: Abstraction has 78 states and 100 transitions. [2021-10-28 22:56:52,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 100 transitions. [2021-10-28 22:56:52,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-10-28 22:56:52,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 58 states have internal predecessors, (58), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (27), 8 states have call predecessors, (27), 15 states have call successors, (27) [2021-10-28 22:56:52,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2021-10-28 22:56:52,897 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 100 transitions. [2021-10-28 22:56:52,897 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 100 transitions. [2021-10-28 22:56:52,897 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 22:56:52,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 100 transitions. [2021-10-28 22:56:52,900 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-10-28 22:56:52,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:56:52,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:56:52,901 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-28 22:56:52,901 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:56:52,901 INFO L791 eck$LassoCheckResult]: Stem: 826#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 827#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 820#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 821#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 833#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 853#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 832#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 834#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 893#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 890#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 856#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 894#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 891#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 857#recFINAL assume true; 855#recEXIT >#31#return; 839#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 842#recFINAL assume true; 872#recEXIT >#31#return; 868#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 867#recFINAL assume true; 863#recEXIT >#33#return; 845#L33-1 havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem12 := read~int(main_~pp~0.base, main_~pp~0.offset, 4);call write~int(main_#t~mem11 + main_#t~mem12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem11;havoc main_#t~mem12; 823#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 825#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 859#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 886#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 885#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 836#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 877#recENTRY [2021-10-28 22:56:52,902 INFO L793 eck$LassoCheckResult]: Loop: 877#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 882#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 837#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 877#recENTRY [2021-10-28 22:56:52,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:52,902 INFO L85 PathProgramCache]: Analyzing trace with hash -892002912, now seen corresponding path program 3 times [2021-10-28 22:56:52,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:52,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915866511] [2021-10-28 22:56:52,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:52,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:53,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 22:56:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:53,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:56:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:53,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:56:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:53,405 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 22:56:53,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:56:53,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915866511] [2021-10-28 22:56:53,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915866511] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:56:53,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853394157] [2021-10-28 22:56:53,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 22:56:53,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:56:53,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:53,408 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:56:53,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-28 22:56:53,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-28 22:56:53,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 22:56:53,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-28 22:56:53,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:56:53,620 INFO L388 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 [2021-10-28 22:56:53,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 17 [2021-10-28 22:56:58,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2021-10-28 22:56:58,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 22:56:59,706 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 22:56:59,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2021-10-28 22:56:59,900 INFO L354 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2021-10-28 22:56:59,900 INFO L388 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 2 case distinctions, treesize of input 38 treesize of output 56 [2021-10-28 22:57:00,194 INFO L354 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2021-10-28 22:57:00,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 68 [2021-10-28 22:57:01,027 INFO L354 Elim1Store]: treesize reduction 25, result has 32.4 percent of original size [2021-10-28 22:57:01,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 79 [2021-10-28 22:57:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 22:57:01,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853394157] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:57:01,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:57:01,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-10-28 22:57:01,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864546177] [2021-10-28 22:57:01,149 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 22:57:01,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:57:01,149 INFO L85 PathProgramCache]: Analyzing trace with hash 29945, now seen corresponding path program 2 times [2021-10-28 22:57:01,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:57:01,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401340832] [2021-10-28 22:57:01,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:01,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:57:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:01,156 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:57:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:01,162 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:57:01,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:57:01,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-28 22:57:01,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=569, Unknown=5, NotChecked=0, Total=650 [2021-10-28 22:57:01,411 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. cyclomatic complexity: 28 Second operand has 26 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 21 states have internal predecessors, (34), 6 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-28 22:57:15,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:57:15,100 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2021-10-28 22:57:15,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 22:57:15,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 76 transitions. [2021-10-28 22:57:15,103 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 22:57:15,105 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 41 states and 51 transitions. [2021-10-28 22:57:15,105 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-28 22:57:15,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-28 22:57:15,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2021-10-28 22:57:15,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:57:15,106 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2021-10-28 22:57:15,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2021-10-28 22:57:15,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-28 22:57:15,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 30 states have internal predecessors, (30), 6 states have call successors, (6), 4 states have call predecessors, (6), 7 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2021-10-28 22:57:15,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2021-10-28 22:57:15,111 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2021-10-28 22:57:15,111 INFO L587 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2021-10-28 22:57:15,111 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 22:57:15,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 51 transitions. [2021-10-28 22:57:15,113 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 22:57:15,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:57:15,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:57:15,115 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:57:15,115 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-10-28 22:57:15,115 INFO L791 eck$LassoCheckResult]: Stem: 1122#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1123#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 1142#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 1162#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 1144#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 1161#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1160#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1131#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1145#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1130#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1127#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1139#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1140#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1128#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1139#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1126#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 1129#recFINAL assume true; 1159#recEXIT >#31#return; 1158#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1157#recFINAL assume true; 1154#recEXIT >#31#return; 1152#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1151#recFINAL assume true; 1150#recEXIT >#31#return; 1147#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1148#recFINAL assume true; 1146#recEXIT >#33#return; 1136#L33-1 [2021-10-28 22:57:15,115 INFO L793 eck$LassoCheckResult]: Loop: 1136#L33-1 havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem12 := read~int(main_~pp~0.base, main_~pp~0.offset, 4);call write~int(main_#t~mem11 + main_#t~mem12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem11;havoc main_#t~mem12; 1124#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 1125#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 1133#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 1137#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1138#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1134#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1137#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1138#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1134#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1137#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1138#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1134#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1137#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1138#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1134#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1137#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1138#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 1143#recFINAL assume true; 1141#recEXIT >#31#return; 1132#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1135#recFINAL assume true; 1156#recEXIT >#31#return; 1155#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1153#recFINAL assume true; 1149#recEXIT >#31#return; 1147#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1148#recFINAL assume true; 1146#recEXIT >#31#return; 1147#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1148#recFINAL assume true; 1146#recEXIT >#33#return; 1136#L33-1 [2021-10-28 22:57:15,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:57:15,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1048585469, now seen corresponding path program 1 times [2021-10-28 22:57:15,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:57:15,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105341555] [2021-10-28 22:57:15,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:15,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:57:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:15,132 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:57:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:15,152 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:57:15,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:57:15,153 INFO L85 PathProgramCache]: Analyzing trace with hash -195458237, now seen corresponding path program 3 times [2021-10-28 22:57:15,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:57:15,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282239655] [2021-10-28 22:57:15,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:15,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:57:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:15,177 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:57:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:57:15,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:57:15,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:57:15,205 INFO L85 PathProgramCache]: Analyzing trace with hash -2091065787, now seen corresponding path program 4 times [2021-10-28 22:57:15,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:57:15,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115158943] [2021-10-28 22:57:15,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:57:15,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:57:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:15,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 22:57:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:15,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:57:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:16,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:57:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:16,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:57:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:16,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-10-28 22:57:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:16,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:57:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:16,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:57:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:16,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:57:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:16,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:57:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:57:16,743 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 32 proven. 113 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-28 22:57:16,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:57:16,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115158943] [2021-10-28 22:57:16,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115158943] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:57:16,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178744680] [2021-10-28 22:57:16,750 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 22:57:16,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:57:16,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:57:16,751 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:57:16,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-28 22:57:16,969 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 22:57:16,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 22:57:16,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 58 conjunts are in the unsatisfiable core [2021-10-28 22:57:16,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:57:16,990 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-28 22:57:16,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2021-10-28 22:57:17,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 17 [2021-10-28 22:57:20,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2021-10-28 22:57:20,750 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 22:57:20,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43 [2021-10-28 22:57:21,201 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-10-28 22:57:21,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 54 treesize of output 59 [2021-10-28 22:57:21,529 INFO L354 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2021-10-28 22:57:21,529 INFO L388 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 2 case distinctions, treesize of input 74 treesize of output 76 [2021-10-28 22:57:21,567 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-10-28 22:57:21,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 71 treesize of output 79 [2021-10-28 22:57:21,816 INFO L354 Elim1Store]: treesize reduction 51, result has 12.1 percent of original size [2021-10-28 22:57:21,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 79 [2021-10-28 22:57:21,838 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-10-28 22:57:21,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 72 [2021-10-28 22:57:22,011 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-10-28 22:57:22,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 50 [2021-10-28 22:57:22,219 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 26 proven. 138 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-28 22:57:22,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178744680] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:57:22,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:57:22,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 45 [2021-10-28 22:57:22,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867494967] [2021-10-28 22:57:27,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:57:27,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-10-28 22:57:27,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1896, Unknown=2, NotChecked=0, Total=2070 [2021-10-28 22:57:27,161 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. cyclomatic complexity: 13 Second operand has 46 states, 36 states have (on average 1.6666666666666667) internal successors, (60), 34 states have internal predecessors, (60), 14 states have call successors, (15), 4 states have call predecessors, (15), 13 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2021-10-28 22:57:53,314 WARN L207 SmtUtils]: Spent 24.07 s on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2021-10-28 22:58:03,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:58:03,480 INFO L93 Difference]: Finished difference Result 57 states and 77 transitions. [2021-10-28 22:58:03,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-28 22:58:03,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 77 transitions. [2021-10-28 22:58:03,483 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-28 22:58:03,485 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 45 states and 57 transitions. [2021-10-28 22:58:03,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-10-28 22:58:03,486 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-10-28 22:58:03,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 57 transitions. [2021-10-28 22:58:03,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:58:03,486 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 57 transitions. [2021-10-28 22:58:03,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 57 transitions. [2021-10-28 22:58:03,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2021-10-28 22:58:03,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 32 states have internal predecessors, (32), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2021-10-28 22:58:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2021-10-28 22:58:03,492 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-10-28 22:58:03,492 INFO L587 BuchiCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-10-28 22:58:03,492 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 22:58:03,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 56 transitions. [2021-10-28 22:58:03,493 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 22:58:03,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:58:03,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:58:03,495 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:58:03,495 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-10-28 22:58:03,496 INFO L791 eck$LassoCheckResult]: Stem: 1623#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1624#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 1625#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 1626#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 1643#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 1648#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1647#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1632#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1646#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1631#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1628#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1641#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1642#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1629#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1641#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1642#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1629#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1641#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1627#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 1630#recFINAL assume true; 1666#recEXIT >#31#return; 1665#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1664#recFINAL assume true; 1663#recEXIT >#31#return; 1662#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1660#recFINAL assume true; 1658#recEXIT >#31#return; 1656#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1655#recFINAL assume true; 1653#recEXIT >#31#return; 1652#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1654#recFINAL assume true; 1651#recEXIT >#33#return; 1637#L33-1 [2021-10-28 22:58:03,496 INFO L793 eck$LassoCheckResult]: Loop: 1637#L33-1 havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem12 := read~int(main_~pp~0.base, main_~pp~0.offset, 4);call write~int(main_#t~mem11 + main_#t~mem12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem11;havoc main_#t~mem12; 1638#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 1649#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 1634#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 1639#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1640#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1635#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1639#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1640#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1635#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1639#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1640#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1635#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1639#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1640#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1635#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1639#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1640#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 1650#recFINAL assume true; 1644#recEXIT >#31#return; 1633#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1636#recFINAL assume true; 1645#recEXIT >#31#return; 1661#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1659#recFINAL assume true; 1657#recEXIT >#31#return; 1656#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1655#recFINAL assume true; 1653#recEXIT >#31#return; 1652#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1654#recFINAL assume true; 1651#recEXIT >#33#return; 1637#L33-1 [2021-10-28 22:58:03,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:58:03,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1075606773, now seen corresponding path program 2 times [2021-10-28 22:58:03,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:58:03,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739588180] [2021-10-28 22:58:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:58:03,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:58:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:58:03,536 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:58:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:58:03,560 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:58:03,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:58:03,561 INFO L85 PathProgramCache]: Analyzing trace with hash -195458237, now seen corresponding path program 4 times [2021-10-28 22:58:03,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:58:03,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102005836] [2021-10-28 22:58:03,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:58:03,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:58:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:58:03,580 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:58:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:58:03,601 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:58:03,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:58:03,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2001023031, now seen corresponding path program 5 times [2021-10-28 22:58:03,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:58:03,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592876137] [2021-10-28 22:58:03,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:58:03,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:58:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:58:03,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 22:58:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:58:03,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:58:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:58:04,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:58:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:58:04,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:58:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:58:04,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:58:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:58:04,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-10-28 22:58:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:58:04,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:58:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:58:04,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:58:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:58:04,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:58:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:58:04,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 22:58:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:58:04,653 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 32 proven. 140 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-10-28 22:58:04,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:58:04,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592876137] [2021-10-28 22:58:04,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592876137] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:58:04,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442069693] [2021-10-28 22:58:04,654 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 22:58:04,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:58:04,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:58:04,655 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:58:04,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-28 22:58:04,998 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-28 22:58:04,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 22:58:05,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-28 22:58:05,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:58:05,027 INFO L388 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 [2021-10-28 22:58:05,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 17 [2021-10-28 22:59:15,343 INFO L354 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2021-10-28 22:59:15,344 INFO L388 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 2 case distinctions, treesize of input 33 treesize of output 51 [2021-10-28 22:59:16,675 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-28 22:59:16,676 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-28 22:59:16,706 INFO L354 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2021-10-28 22:59:16,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 55 [2021-10-28 22:59:17,822 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-28 22:59:17,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 55 [2021-10-28 22:59:30,009 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 35 proven. 163 refuted. 3 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-28 22:59:30,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442069693] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:59:30,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:59:30,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 36 [2021-10-28 22:59:30,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545049724] [2021-10-28 22:59:33,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:59:33,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-28 22:59:33,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1184, Unknown=24, NotChecked=0, Total=1332 [2021-10-28 22:59:33,512 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. cyclomatic complexity: 15 Second operand has 37 states, 30 states have (on average 1.9333333333333333) internal successors, (58), 32 states have internal predecessors, (58), 11 states have call successors, (12), 3 states have call predecessors, (12), 15 states have return successors, (19), 15 states have call predecessors, (19), 11 states have call successors, (19) [2021-10-28 23:03:53,363 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-28 23:03:53,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 101 [2021-10-28 23:03:53,363 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:260) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:899) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineFinite(BuchiCegarLoop.java:950) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:530) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:237) ... 40 more [2021-10-28 23:03:53,366 INFO L168 Benchmark]: Toolchain (without parser) took 472850.33 ms. Allocated memory was 119.5 MB in the beginning and 182.5 MB in the end (delta: 62.9 MB). Free memory was 82.0 MB in the beginning and 98.6 MB in the end (delta: -16.6 MB). Peak memory consumption was 47.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:53,366 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 119.5 MB. Free memory is still 98.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:03:53,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.69 ms. Allocated memory is still 119.5 MB. Free memory was 81.7 MB in the beginning and 94.9 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:53,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.27 ms. Allocated memory is still 119.5 MB. Free memory was 94.9 MB in the beginning and 93.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:53,367 INFO L168 Benchmark]: Boogie Preprocessor took 20.58 ms. Allocated memory is still 119.5 MB. Free memory was 93.8 MB in the beginning and 92.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:03:53,367 INFO L168 Benchmark]: RCFGBuilder took 367.86 ms. Allocated memory is still 119.5 MB. Free memory was 92.3 MB in the beginning and 82.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:53,367 INFO L168 Benchmark]: BuchiAutomizer took 472162.98 ms. Allocated memory was 119.5 MB in the beginning and 182.5 MB in the end (delta: 62.9 MB). Free memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: -16.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:53,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 119.5 MB. Free memory is still 98.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.69 ms. Allocated memory is still 119.5 MB. Free memory was 81.7 MB in the beginning and 94.9 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.27 ms. Allocated memory is still 119.5 MB. Free memory was 94.9 MB in the beginning and 93.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.58 ms. Allocated memory is still 119.5 MB. Free memory was 93.8 MB in the beginning and 92.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 367.86 ms. Allocated memory is still 119.5 MB. Free memory was 92.3 MB in the beginning and 82.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 472162.98 ms. Allocated memory was 119.5 MB in the beginning and 182.5 MB in the end (delta: 62.9 MB). Free memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: -16.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-28 23:03:53,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2021-10-28 23:03:53,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-10-28 23:03:53,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-10-28 23:03:54,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f84e860b-fb0e-46ee-95b9-e9122e22148b/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 Received shutdown request...