./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8f053c4de2291716f40c056dd251ccd74d5a7493 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:06:58,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:06:58,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:06:58,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:06:58,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:06:58,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:06:58,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:06:58,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:06:58,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:06:58,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:06:58,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:06:58,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:06:58,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:06:58,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:06:58,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:06:58,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:06:58,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:06:58,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:06:58,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:06:58,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:06:58,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:06:58,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:06:58,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:06:58,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:06:58,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:06:58,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:06:58,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:06:58,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:06:58,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:06:58,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:06:59,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:06:59,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:06:59,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:06:59,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:06:59,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:06:59,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:06:59,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:06:59,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:06:59,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:06:59,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:06:59,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:06:59,010 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:06:59,041 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:06:59,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:06:59,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:06:59,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:06:59,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:06:59,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:06:59,044 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:06:59,045 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:06:59,045 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:06:59,045 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:06:59,046 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:06:59,046 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:06:59,046 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:06:59,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:06:59,047 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:06:59,047 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:06:59,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:06:59,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:06:59,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:06:59,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:06:59,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:06:59,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:06:59,049 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:06:59,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:06:59,050 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:06:59,050 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:06:59,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:06:59,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:06:59,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:06:59,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:06:59,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:06:59,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:06:59,052 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:06:59,052 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_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f053c4de2291716f40c056dd251ccd74d5a7493 [2021-10-13 00:06:59,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:06:59,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:06:59,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:06:59,341 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:06:59,342 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:06:59,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i [2021-10-13 00:06:59,423 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/data/03f3ff093/955522b5ee2746b3aaf21ebcd03290ee/FLAGfc65ea8f7 [2021-10-13 00:06:59,956 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:06:59,957 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/sv-benchmarks/c/list-ext-properties/test-0232_1-2.i [2021-10-13 00:06:59,970 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/data/03f3ff093/955522b5ee2746b3aaf21ebcd03290ee/FLAGfc65ea8f7 [2021-10-13 00:07:00,305 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/data/03f3ff093/955522b5ee2746b3aaf21ebcd03290ee [2021-10-13 00:07:00,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:07:00,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:07:00,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:07:00,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:07:00,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:07:00,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:07:00" (1/1) ... [2021-10-13 00:07:00,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@281f6beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:00, skipping insertion in model container [2021-10-13 00:07:00,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:07:00" (1/1) ... [2021-10-13 00:07:00,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:07:00,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:07:00,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:07:00,778 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:07:00,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:07:00,869 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:07:00,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:00 WrapperNode [2021-10-13 00:07:00,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:07:00,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:07:00,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:07:00,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:07:00,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:00" (1/1) ... [2021-10-13 00:07:00,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:00" (1/1) ... [2021-10-13 00:07:00,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:07:00,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:07:00,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:07:00,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:07:00,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:00" (1/1) ... [2021-10-13 00:07:00,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:00" (1/1) ... [2021-10-13 00:07:00,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:00" (1/1) ... [2021-10-13 00:07:00,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:00" (1/1) ... [2021-10-13 00:07:00,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:00" (1/1) ... [2021-10-13 00:07:00,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:00" (1/1) ... [2021-10-13 00:07:00,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:00" (1/1) ... [2021-10-13 00:07:00,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:07:00,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:07:00,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:07:00,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:07:00,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:00" (1/1) ... [2021-10-13 00:07:00,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:01,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:01,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:01,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:07:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:07:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:07:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:07:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:07:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:07:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 00:07:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:07:01,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:07:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:07:01,410 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:07:01,410 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-13 00:07:01,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:07:01 BoogieIcfgContainer [2021-10-13 00:07:01,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:07:01,414 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:07:01,414 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:07:01,417 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:07:01,418 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:07:01,418 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:07:00" (1/3) ... [2021-10-13 00:07:01,420 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f7da10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:07:01, skipping insertion in model container [2021-10-13 00:07:01,420 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:07:01,420 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:00" (2/3) ... [2021-10-13 00:07:01,420 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f7da10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:07:01, skipping insertion in model container [2021-10-13 00:07:01,421 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:07:01,421 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:07:01" (3/3) ... [2021-10-13 00:07:01,422 INFO L389 chiAutomizerObserver]: Analyzing ICFG test-0232_1-2.i [2021-10-13 00:07:01,469 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:07:01,470 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:07:01,470 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:07:01,470 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:07:01,470 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:07:01,470 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:07:01,471 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:07:01,471 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:07:01,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:01,515 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 00:07:01,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:01,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:01,521 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:07:01,521 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-13 00:07:01,521 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:07:01,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:01,523 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 00:07:01,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:01,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:01,524 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:07:01,524 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-13 00:07:01,529 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 9#L-1true havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 14#L543-3true [2021-10-13 00:07:01,530 INFO L793 eck$LassoCheckResult]: Loop: 14#L543-3true append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 5#L534true assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 12#L534-2true call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 7#L529true main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 11#L543-1true assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 14#L543-3true [2021-10-13 00:07:01,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:01,536 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-13 00:07:01,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:01,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530705296] [2021-10-13 00:07:01,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:01,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:01,644 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:01,724 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:01,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:01,732 INFO L82 PathProgramCache]: Analyzing trace with hash 34451375, now seen corresponding path program 1 times [2021-10-13 00:07:01,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:01,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976076461] [2021-10-13 00:07:01,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:01,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:01,797 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:01,866 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:01,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:01,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1805890861, now seen corresponding path program 1 times [2021-10-13 00:07:01,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:01,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128947176] [2021-10-13 00:07:01,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:01,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:02,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:07:02,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128947176] [2021-10-13 00:07:02,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128947176] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:07:02,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:07:02,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:07:02,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107777686] [2021-10-13 00:07:03,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:07:04,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:07:04,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:07:04,018 INFO L87 Difference]: Start difference. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:04,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:04,097 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2021-10-13 00:07:04,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:07:04,099 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2021-10-13 00:07:04,101 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-13 00:07:04,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 16 transitions. [2021-10-13 00:07:04,105 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-13 00:07:04,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-13 00:07:04,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2021-10-13 00:07:04,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:07:04,107 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-13 00:07:04,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2021-10-13 00:07:04,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-10-13 00:07:04,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:04,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-10-13 00:07:04,133 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-13 00:07:04,133 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-13 00:07:04,133 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:07:04,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2021-10-13 00:07:04,134 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 00:07:04,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:04,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:04,135 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:07:04,135 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-13 00:07:04,136 INFO L791 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 47#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 51#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 48#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 44#L534-2 [2021-10-13 00:07:04,136 INFO L793 eck$LassoCheckResult]: Loop: 44#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 45#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 49#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 53#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 54#L534 assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 44#L534-2 [2021-10-13 00:07:04,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:04,137 INFO L82 PathProgramCache]: Analyzing trace with hash 925640, now seen corresponding path program 1 times [2021-10-13 00:07:04,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:04,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653283349] [2021-10-13 00:07:04,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:04,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:04,157 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:04,182 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:04,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:04,184 INFO L82 PathProgramCache]: Analyzing trace with hash 41102165, now seen corresponding path program 2 times [2021-10-13 00:07:04,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:04,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779072412] [2021-10-13 00:07:04,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:04,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:04,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:04,203 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:04,249 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:04,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:04,250 INFO L82 PathProgramCache]: Analyzing trace with hash 351588334, now seen corresponding path program 1 times [2021-10-13 00:07:04,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:04,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747871726] [2021-10-13 00:07:04,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:04,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:04,306 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:04,359 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:07,515 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:07:07,515 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:07:07,515 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:07:07,516 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:07:07,516 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:07:07,516 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:07,516 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:07:07,516 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:07:07,516 INFO L133 ssoRankerPreferences]: Filename of dumped script: test-0232_1-2.i_Iteration2_Lasso [2021-10-13 00:07:07,516 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:07:07,517 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:07:07,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:07,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:07,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:09,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:13,873 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:07:13,878 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:07:13,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:13,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:13,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:13,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:07:13,888 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 [2021-10-13 00:07:13,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:13,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:13,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:13,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:13,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:13,900 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:13,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:13,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:13,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-13 00:07:13,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:13,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:13,928 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:13,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:07:13,929 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 [2021-10-13 00:07:13,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:13,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:13,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:13,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:13,944 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:13,944 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:13,956 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:13,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:13,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:13,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,016 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 [2021-10-13 00:07:14,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,028 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:14,029 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:14,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:07:14,049 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,085 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:07:14,087 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 [2021-10-13 00:07:14,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:14,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:14,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-13 00:07:14,145 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,148 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:07:14,150 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 [2021-10-13 00:07:14,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,159 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:14,160 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:14,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,233 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:07:14,235 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 [2021-10-13 00:07:14,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,254 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:14,254 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:14,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,305 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,317 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 [2021-10-13 00:07:14,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:14,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:14,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:14,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:07:14,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,354 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:07:14,356 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 [2021-10-13 00:07:14,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,366 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:14,366 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:14,393 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,429 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,441 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 [2021-10-13 00:07:14,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,455 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:14,455 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:14,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:07:14,473 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,498 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:07:14,503 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 [2021-10-13 00:07:14,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:14,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:14,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:14,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,536 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:07:14,546 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 [2021-10-13 00:07:14,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:14,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:14,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:14,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,576 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,617 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 [2021-10-13 00:07:14,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:07:14,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:14,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:14,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:14,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,685 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,697 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 [2021-10-13 00:07:14,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:14,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:14,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:14,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:07:14,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,750 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:07:14,754 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 [2021-10-13 00:07:14,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,763 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:14,764 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:14,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,830 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,833 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:07:14,841 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 [2021-10-13 00:07:14,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:14,855 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:14,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,920 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:07:14,924 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 [2021-10-13 00:07:14,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,934 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:14,934 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:14,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,960 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:07:14,962 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 [2021-10-13 00:07:14,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:14,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:14,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:14,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:14,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:14,969 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:14,969 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:14,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:14,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:14,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:14,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:14,994 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:14,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:07:14,997 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 [2021-10-13 00:07:15,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:15,006 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-13 00:07:15,006 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2021-10-13 00:07:15,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:16,174 INFO L401 nArgumentSynthesizer]: We have 208 Motzkin's Theorem applications. [2021-10-13 00:07:16,174 INFO L402 nArgumentSynthesizer]: A total of 16 supporting invariants were added. [2021-10-13 00:07:18,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:18,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:18,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:18,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:18,876 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:18,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:07:18,881 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 [2021-10-13 00:07:18,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:18,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:18,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:18,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:18,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:18,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:18,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:18,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:18,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:18,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:18,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:18,915 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:18,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:07:18,916 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 [2021-10-13 00:07:18,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:18,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:18,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:18,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:18,934 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:18,934 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:18,950 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:18,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:18,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:18,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:18,979 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:18,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:07:18,980 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 [2021-10-13 00:07:18,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:18,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:18,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:18,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:18,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:18,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:18,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:18,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:19,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,012 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:07:19,019 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 [2021-10-13 00:07:19,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:19,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:19,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:19,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:19,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,051 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:07:19,052 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 [2021-10-13 00:07:19,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:19,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:19,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:19,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,084 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:07:19,086 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 [2021-10-13 00:07:19,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:19,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:19,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:19,097 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-13 00:07:19,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,117 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:07:19,118 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 [2021-10-13 00:07:19,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:19,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,127 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:19,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:19,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-13 00:07:19,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,149 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,173 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 [2021-10-13 00:07:19,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 00:07:19,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:19,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:19,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:19,185 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-13 00:07:19,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,205 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,206 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 [2021-10-13 00:07:19,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 00:07:19,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:19,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:19,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:19,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:19,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,236 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 00:07:19,238 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 [2021-10-13 00:07:19,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:19,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,246 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:19,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:19,247 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-13 00:07:19,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,268 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-13 00:07:19,269 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 [2021-10-13 00:07:19,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:19,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:19,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:19,278 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-13 00:07:19,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,306 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 00:07:19,309 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 [2021-10-13 00:07:19,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:19,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:19,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:19,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-13 00:07:19,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,342 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 00:07:19,344 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 [2021-10-13 00:07:19,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:19,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:19,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:19,377 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:19,414 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,417 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,419 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 [2021-10-13 00:07:19,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,430 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:19,431 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:19,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 00:07:19,445 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-13 00:07:19,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,476 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 00:07:19,478 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 [2021-10-13 00:07:19,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:19,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:19,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:19,488 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:19,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,511 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 00:07:19,513 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 [2021-10-13 00:07:19,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:19,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:19,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:19,534 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:19,561 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,562 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 00:07:19,563 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 [2021-10-13 00:07:19,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:19,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:19,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:19,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:19,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:19,630 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,631 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,638 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 [2021-10-13 00:07:19,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:19,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:19,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:19,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:19,649 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:19,649 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:19,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 00:07:19,661 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:07:19,693 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-13 00:07:19,693 INFO L444 ModelExtractionUtils]: 0 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-10-13 00:07:19,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:19,718 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:19,726 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:07:19,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 00:07:19,774 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:07:19,774 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:07:19,775 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~c~0) = -2*~c~0 + 39 Supporting invariants [] [2021-10-13 00:07:19,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:19,877 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-10-13 00:07:19,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:19,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:07:19,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:20,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:07:20,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:20,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:20,101 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 00:07:20,102 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:20,151 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 26 transitions. Complement of second has 6 states. [2021-10-13 00:07:20,152 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 [2021-10-13 00:07:20,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-13 00:07:20,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 5 letters. [2021-10-13 00:07:20,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:07:20,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 5 letters. [2021-10-13 00:07:20,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:07:20,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 10 letters. [2021-10-13 00:07:20,160 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:07:20,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2021-10-13 00:07:20,165 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 00:07:20,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 16 states and 21 transitions. [2021-10-13 00:07:20,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-13 00:07:20,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-13 00:07:20,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-10-13 00:07:20,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:07:20,168 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-13 00:07:20,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-10-13 00:07:20,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-10-13 00:07:20,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:20,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-10-13 00:07:20,174 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-13 00:07:20,174 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-13 00:07:20,174 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:07:20,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-10-13 00:07:20,178 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 00:07:20,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:20,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:20,179 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:07:20,179 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 00:07:20,180 INFO L791 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 174#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 181#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 175#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 176#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 170#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 178#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 182#L543-4 assume !(main_~length~0 > 0); 180#L554-1 [2021-10-13 00:07:20,180 INFO L793 eck$LassoCheckResult]: Loop: 180#L554-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 180#L554-1 [2021-10-13 00:07:20,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:20,182 INFO L82 PathProgramCache]: Analyzing trace with hash 149888852, now seen corresponding path program 1 times [2021-10-13 00:07:20,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:20,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080491085] [2021-10-13 00:07:20,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:20,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:20,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:20,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:07:20,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080491085] [2021-10-13 00:07:20,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080491085] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:07:20,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:07:20,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:07:20,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218582231] [2021-10-13 00:07:20,272 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:07:20,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:20,272 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 1 times [2021-10-13 00:07:20,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:20,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802100963] [2021-10-13 00:07:20,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:20,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:20,282 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:20,297 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:20,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:07:20,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:07:20,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:07:20,484 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:20,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:20,504 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2021-10-13 00:07:20,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:07:20,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2021-10-13 00:07:20,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 00:07:20,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 21 transitions. [2021-10-13 00:07:20,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-13 00:07:20,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-13 00:07:20,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2021-10-13 00:07:20,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:07:20,506 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-10-13 00:07:20,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2021-10-13 00:07:20,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-10-13 00:07:20,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:20,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-10-13 00:07:20,508 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-13 00:07:20,508 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-13 00:07:20,508 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:07:20,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2021-10-13 00:07:20,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 00:07:20,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:20,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:20,510 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:07:20,510 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 00:07:20,510 INFO L791 eck$LassoCheckResult]: Stem: 212#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 213#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 220#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 214#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 215#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 209#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 217#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 221#L543-4 assume main_~length~0 > 0;call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem16.base, main_#t~mem16.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, 4 + main_#t~mem17.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 219#L554-1 [2021-10-13 00:07:20,510 INFO L793 eck$LassoCheckResult]: Loop: 219#L554-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 219#L554-1 [2021-10-13 00:07:20,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:20,511 INFO L82 PathProgramCache]: Analyzing trace with hash 149888850, now seen corresponding path program 1 times [2021-10-13 00:07:20,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:20,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94759629] [2021-10-13 00:07:20,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:20,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:20,567 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:20,603 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:20,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:20,604 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 2 times [2021-10-13 00:07:20,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:20,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620225070] [2021-10-13 00:07:20,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:20,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:20,609 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:20,620 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:20,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:20,628 INFO L82 PathProgramCache]: Analyzing trace with hash 351587092, now seen corresponding path program 1 times [2021-10-13 00:07:20,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:20,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663496371] [2021-10-13 00:07:20,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:20,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:20,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:20,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:07:20,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663496371] [2021-10-13 00:07:20,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663496371] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:07:20,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:07:20,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:07:20,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720932822] [2021-10-13 00:07:20,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:07:20,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:07:20,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:07:20,854 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:20,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:20,880 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2021-10-13 00:07:20,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:07:20,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2021-10-13 00:07:20,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 00:07:20,883 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 23 states and 29 transitions. [2021-10-13 00:07:20,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-13 00:07:20,883 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-13 00:07:20,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 29 transitions. [2021-10-13 00:07:20,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:07:20,884 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2021-10-13 00:07:20,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 29 transitions. [2021-10-13 00:07:20,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 15. [2021-10-13 00:07:20,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:20,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-10-13 00:07:20,886 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-13 00:07:20,886 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-13 00:07:20,886 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:07:20,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2021-10-13 00:07:20,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 00:07:20,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:20,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:20,887 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-13 00:07:20,887 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 00:07:20,887 INFO L791 eck$LassoCheckResult]: Stem: 263#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 264#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 272#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 265#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 260#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 261#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 270#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 274#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 266#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 267#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 268#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 269#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 273#L543-4 assume main_~length~0 > 0;call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem16.base, main_#t~mem16.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, 4 + main_#t~mem17.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 271#L554-1 [2021-10-13 00:07:20,887 INFO L793 eck$LassoCheckResult]: Loop: 271#L554-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 271#L554-1 [2021-10-13 00:07:20,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:20,888 INFO L82 PathProgramCache]: Analyzing trace with hash -315524230, now seen corresponding path program 1 times [2021-10-13 00:07:20,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:20,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630117892] [2021-10-13 00:07:20,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:20,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:20,970 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:20,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:07:20,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630117892] [2021-10-13 00:07:20,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630117892] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:07:20,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607906015] [2021-10-13 00:07:20,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:20,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:07:20,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:20,974 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:07:20,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-13 00:07:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:21,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 00:07:21,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:21,196 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-10-13 00:07:21,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 36 treesize of output 31 [2021-10-13 00:07:21,314 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 16 treesize of output 8 [2021-10-13 00:07:21,330 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:21,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607906015] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:07:21,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:07:21,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-10-13 00:07:21,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748817127] [2021-10-13 00:07:21,332 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:07:21,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:21,333 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 3 times [2021-10-13 00:07:21,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:21,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127784094] [2021-10-13 00:07:21,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:21,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:21,341 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:21,348 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:21,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-13 00:07:21,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:07:21,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:07:21,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:07:21,514 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:21,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:21,586 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-13 00:07:21,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:07:21,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2021-10-13 00:07:21,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 00:07:21,588 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2021-10-13 00:07:21,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-13 00:07:21,588 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-13 00:07:21,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2021-10-13 00:07:21,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:07:21,589 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-13 00:07:21,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2021-10-13 00:07:21,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-13 00:07:21,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:21,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-13 00:07:21,590 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-13 00:07:21,590 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-13 00:07:21,591 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 00:07:21,591 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2021-10-13 00:07:21,591 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 00:07:21,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:21,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:21,592 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:07:21,592 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 00:07:21,592 INFO L791 eck$LassoCheckResult]: Stem: 345#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 346#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 353#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 347#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 348#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 344#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 351#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 355#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 349#L534 assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 341#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 342#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 350#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 354#L543-4 assume main_~length~0 > 0;call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem16.base, main_#t~mem16.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, 4 + main_#t~mem17.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 352#L554-1 [2021-10-13 00:07:21,592 INFO L793 eck$LassoCheckResult]: Loop: 352#L554-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 352#L554-1 [2021-10-13 00:07:21,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:21,593 INFO L82 PathProgramCache]: Analyzing trace with hash -317371272, now seen corresponding path program 1 times [2021-10-13 00:07:21,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:21,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339074227] [2021-10-13 00:07:21,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:21,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:21,688 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:21,753 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:21,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:21,754 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 4 times [2021-10-13 00:07:21,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:21,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288577182] [2021-10-13 00:07:21,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:21,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:21,759 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:21,770 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:21,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:21,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1248574802, now seen corresponding path program 1 times [2021-10-13 00:07:21,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:21,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594896074] [2021-10-13 00:07:21,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:21,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:21,823 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:21,896 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:57,798 WARN L207 SmtUtils]: Spent 35.76 s on a formula simplification. DAG size of input: 392 DAG size of output: 321 [2021-10-13 00:08:09,260 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:08:09,260 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:08:09,260 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:08:09,260 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:08:09,260 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:08:09,260 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:08:09,260 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:08:09,260 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:08:09,260 INFO L133 ssoRankerPreferences]: Filename of dumped script: test-0232_1-2.i_Iteration6_Lasso [2021-10-13 00:08:09,261 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:08:09,261 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:08:09,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:08:09,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:08:09,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:08:10,534 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: MapEliminator tries to combine Int and (Array Int Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceSelectStoreTerm(MapEliminator.java:592) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceStoreTerms(MapEliminator.java:542) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:330) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) 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) [2021-10-13 00:08:10,537 INFO L168 Benchmark]: Toolchain (without parser) took 70227.95 ms. Allocated memory was 86.0 MB in the beginning and 226.5 MB in the end (delta: 140.5 MB). Free memory was 50.0 MB in the beginning and 107.2 MB in the end (delta: -57.2 MB). Peak memory consumption was 134.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:08:10,538 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 86.0 MB. Free memory was 55.9 MB in the beginning and 55.9 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:08:10,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 559.51 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 49.8 MB in the beginning and 88.6 MB in the end (delta: -38.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:08:10,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.89 ms. Allocated memory is still 119.5 MB. Free memory was 88.6 MB in the beginning and 86.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:08:10,540 INFO L168 Benchmark]: Boogie Preprocessor took 55.14 ms. Allocated memory is still 119.5 MB. Free memory was 86.5 MB in the beginning and 85.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:08:10,540 INFO L168 Benchmark]: RCFGBuilder took 431.40 ms. Allocated memory is still 119.5 MB. Free memory was 85.2 MB in the beginning and 72.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:08:10,540 INFO L168 Benchmark]: BuchiAutomizer took 69122.96 ms. Allocated memory was 119.5 MB in the beginning and 226.5 MB in the end (delta: 107.0 MB). Free memory was 71.8 MB in the beginning and 107.2 MB in the end (delta: -35.3 MB). Peak memory consumption was 127.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:08:10,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 86.0 MB. Free memory was 55.9 MB in the beginning and 55.9 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 559.51 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 49.8 MB in the beginning and 88.6 MB in the end (delta: -38.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.89 ms. Allocated memory is still 119.5 MB. Free memory was 88.6 MB in the beginning and 86.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.14 ms. Allocated memory is still 119.5 MB. Free memory was 86.5 MB in the beginning and 85.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 431.40 ms. Allocated memory is still 119.5 MB. Free memory was 85.2 MB in the beginning and 72.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 69122.96 ms. Allocated memory was 119.5 MB in the beginning and 226.5 MB in the end (delta: 107.0 MB). Free memory was 71.8 MB in the beginning and 107.2 MB in the end (delta: -35.3 MB). Peak memory consumption was 127.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: MapEliminator tries to combine Int and (Array Int Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 00:08:10,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-10-13 00:08:10,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57cfee22-a765-43b9-9e5d-d4093661b10b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...