./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcspn-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcspn-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF --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 15fe42cb945ebd9019cc38134c29264613097f232589ff55d01d33d66b19d85f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:06:47,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:06:47,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:06:47,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:06:47,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:06:47,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:06:47,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:06:47,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:06:47,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:06:47,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:06:47,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:06:47,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:06:47,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:06:47,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:06:47,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:06:47,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:06:47,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:06:47,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:06:47,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:06:47,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:06:47,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:06:47,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:06:47,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:06:47,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:06:47,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:06:47,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:06:47,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:06:47,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:06:47,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:06:47,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:06:47,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:06:47,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:06:47,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:06:47,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:06:47,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:06:47,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:06:47,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:06:47,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:06:47,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:06:47,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:06:47,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:06:47,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 06:06:47,162 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:06:47,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:06:47,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:06:47,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:06:47,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:06:47,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:06:47,171 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:06:47,172 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 06:06:47,172 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 06:06:47,172 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 06:06:47,173 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 06:06:47,174 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 06:06:47,174 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 06:06:47,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:06:47,174 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:06:47,175 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:06:47,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:06:47,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:06:47,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:06:47,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 06:06:47,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 06:06:47,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 06:06:47,176 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:06:47,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:06:47,177 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 06:06:47,177 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:06:47,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 06:06:47,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:06:47,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:06:47,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:06:47,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:06:47,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:06:47,181 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 06:06:47,181 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_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15fe42cb945ebd9019cc38134c29264613097f232589ff55d01d33d66b19d85f [2021-11-20 06:06:47,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:06:47,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:06:47,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:06:47,514 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:06:47,515 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:06:47,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/array-memsafety/cstrcspn-alloca-1.i [2021-11-20 06:06:47,595 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/data/e006f46f3/36db21e6a9094044b1d657f9da2d3db9/FLAG2e3a7e33b [2021-11-20 06:06:48,169 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:06:48,170 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/sv-benchmarks/c/array-memsafety/cstrcspn-alloca-1.i [2021-11-20 06:06:48,202 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/data/e006f46f3/36db21e6a9094044b1d657f9da2d3db9/FLAG2e3a7e33b [2021-11-20 06:06:48,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/data/e006f46f3/36db21e6a9094044b1d657f9da2d3db9 [2021-11-20 06:06:48,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:06:48,446 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:06:48,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:06:48,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:06:48,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:06:48,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:06:48" (1/1) ... [2021-11-20 06:06:48,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d977911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:48, skipping insertion in model container [2021-11-20 06:06:48,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:06:48" (1/1) ... [2021-11-20 06:06:48,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:06:48,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:06:48,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:06:48,884 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:06:48,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:06:48,959 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:06:48,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:48 WrapperNode [2021-11-20 06:06:48,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:06:48,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:06:48,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:06:48,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:06:48,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:48" (1/1) ... [2021-11-20 06:06:49,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:48" (1/1) ... [2021-11-20 06:06:49,057 INFO L137 Inliner]: procedures = 117, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2021-11-20 06:06:49,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:06:49,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:06:49,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:06:49,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:06:49,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:48" (1/1) ... [2021-11-20 06:06:49,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:48" (1/1) ... [2021-11-20 06:06:49,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:48" (1/1) ... [2021-11-20 06:06:49,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:48" (1/1) ... [2021-11-20 06:06:49,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:48" (1/1) ... [2021-11-20 06:06:49,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:48" (1/1) ... [2021-11-20 06:06:49,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:48" (1/1) ... [2021-11-20 06:06:49,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:06:49,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:06:49,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:06:49,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:06:49,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:48" (1/1) ... [2021-11-20 06:06:49,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:49,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:49,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:49,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 06:06:49,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:06:49,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:06:49,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:06:49,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:06:49,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:06:49,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:06:49,343 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:06:49,345 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:06:49,668 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:06:49,683 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:06:49,683 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-20 06:06:49,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:06:49 BoogieIcfgContainer [2021-11-20 06:06:49,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:06:49,698 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 06:06:49,698 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 06:06:49,702 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 06:06:49,703 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:06:49,703 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 06:06:48" (1/3) ... [2021-11-20 06:06:49,705 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2863315e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:06:49, skipping insertion in model container [2021-11-20 06:06:49,705 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:06:49,705 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:06:48" (2/3) ... [2021-11-20 06:06:49,705 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2863315e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:06:49, skipping insertion in model container [2021-11-20 06:06:49,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:06:49,706 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:06:49" (3/3) ... [2021-11-20 06:06:49,707 INFO L388 chiAutomizerObserver]: Analyzing ICFG cstrcspn-alloca-1.i [2021-11-20 06:06:49,764 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 06:06:49,764 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 06:06:49,764 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 06:06:49,765 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 06:06:49,765 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 06:06:49,765 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 06:06:49,765 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 06:06:49,765 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 06:06:49,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 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) [2021-11-20 06:06:49,808 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2021-11-20 06:06:49,809 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:06:49,809 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:06:49,816 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-20 06:06:49,816 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:06:49,817 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 06:06:49,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 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) [2021-11-20 06:06:49,820 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2021-11-20 06:06:49,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:06:49,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:06:49,821 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-20 06:06:49,821 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:06:49,830 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 11#L532true assume !(main_~length1~0#1 < 1); 7#L532-2true assume !(main_~length2~0#1 < 1); 3#L535-1true call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 18#L541-3true [2021-11-20 06:06:49,830 INFO L793 eck$LassoCheckResult]: Loop: 18#L541-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 24#L541-2true main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 18#L541-3true [2021-11-20 06:06:49,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:49,838 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-11-20 06:06:49,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:49,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478536226] [2021-11-20 06:06:49,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:49,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:50,000 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:50,066 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:50,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:50,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-11-20 06:06:50,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:50,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224513514] [2021-11-20 06:06:50,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:50,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:50,104 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:50,129 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:50,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:50,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2021-11-20 06:06:50,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:50,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509834880] [2021-11-20 06:06:50,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:50,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:50,193 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:50,239 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:50,879 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:06:50,880 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:06:50,880 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:06:50,881 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:06:50,881 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:06:50,881 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:50,882 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:06:50,882 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:06:50,883 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration1_Lasso [2021-11-20 06:06:50,883 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:06:50,883 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:06:50,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:50,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:51,587 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:06:51,592 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:06:51,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:51,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:51,601 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:51,608 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 [2021-11-20 06:06:51,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:51,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:06:51,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 06:06:51,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:51,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:51,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:51,626 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:06:51,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:06:51,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:51,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-20 06:06:51,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:51,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:51,689 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:51,705 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 [2021-11-20 06:06:51,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:51,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:51,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:51,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:51,736 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:06:51,737 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:06:51,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 06:06:51,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:51,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-11-20 06:06:51,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:51,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:51,812 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:51,818 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 [2021-11-20 06:06:51,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:51,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:51,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:51,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:51,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:06:51,841 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:06:51,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 06:06:51,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:51,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:51,899 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:51,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:51,900 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:51,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 06:06:51,902 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 [2021-11-20 06:06:51,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:51,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:51,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:51,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:51,923 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:06:51,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:06:51,944 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:06:51,995 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-11-20 06:06:51,995 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-11-20 06:06:51,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:51,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:52,016 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:52,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 06:06:52,089 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:06:52,118 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-20 06:06:52,118 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:06:52,119 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_1) = -1*ULTIMATE.start_main_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_1 Supporting invariants [1*ULTIMATE.start_main_~nondetString1~0#1.offset >= 0] [2021-11-20 06:06:52,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:52,186 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2021-11-20 06:06:52,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:52,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:06:52,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:06:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:52,338 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:06:52,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:06:52,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:06:52,447 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-20 06:06:52,452 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-11-20 06:06:52,596 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 23 states have internal predecessors, (35), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Result 57 states and 84 transitions. Complement of second has 8 states. [2021-11-20 06:06:52,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-20 06:06:52,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2021-11-20 06:06:52,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 56 transitions. [2021-11-20 06:06:52,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-20 06:06:52,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:06:52,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 7 letters. Loop has 2 letters. [2021-11-20 06:06:52,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:06:52,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 5 letters. Loop has 4 letters. [2021-11-20 06:06:52,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:06:52,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 84 transitions. [2021-11-20 06:06:52,628 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-11-20 06:06:52,636 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 20 states and 27 transitions. [2021-11-20 06:06:52,637 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-20 06:06:52,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-11-20 06:06:52,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2021-11-20 06:06:52,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:06:52,639 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-20 06:06:52,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2021-11-20 06:06:52,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-20 06:06:52,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 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) [2021-11-20 06:06:52,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-11-20 06:06:52,673 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-20 06:06:52,673 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-20 06:06:52,673 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 06:06:52,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2021-11-20 06:06:52,676 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-11-20 06:06:52,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:06:52,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:06:52,677 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:52,677 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:06:52,704 INFO L791 eck$LassoCheckResult]: Stem: 167#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 168#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 172#L532 assume !(main_~length1~0#1 < 1); 169#L532-2 assume !(main_~length2~0#1 < 1); 163#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 164#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 173#L541-4 main_~i~1#1 := 0; 166#L547-3 [2021-11-20 06:06:52,704 INFO L793 eck$LassoCheckResult]: Loop: 166#L547-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 165#L547-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 166#L547-3 [2021-11-20 06:06:52,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:52,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2021-11-20 06:06:52,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:52,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844109218] [2021-11-20 06:06:52,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:52,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:52,733 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:52,762 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:52,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:52,763 INFO L85 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2021-11-20 06:06:52,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:52,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734310741] [2021-11-20 06:06:52,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:52,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:52,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:52,798 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:52,809 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:52,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:52,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2021-11-20 06:06:52,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:52,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016148614] [2021-11-20 06:06:52,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:52,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:52,836 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:52,871 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:53,262 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:06:53,263 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:06:53,263 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:06:53,263 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:06:53,263 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:06:53,263 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:53,263 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:06:53,264 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:06:53,264 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration2_Lasso [2021-11-20 06:06:53,264 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:06:53,264 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:06:53,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:53,771 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:06:53,771 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:06:53,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:53,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:53,773 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:53,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 06:06:53,777 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 [2021-11-20 06:06:53,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:53,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:06:53,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:53,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:53,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:53,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:06:53,790 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:06:53,804 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:53,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:53,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:53,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:53,850 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:53,861 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 [2021-11-20 06:06:53,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:53,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:06:53,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:53,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:53,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:53,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:06:53,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:06:53,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 06:06:53,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:53,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:53,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:53,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:53,956 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:53,965 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 [2021-11-20 06:06:53,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:53,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:53,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:53,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:53,984 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:06:53,984 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:06:53,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 06:06:54,008 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:54,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:54,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:54,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:54,055 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:54,064 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 [2021-11-20 06:06:54,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:54,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:54,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:54,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:54,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:06:54,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:06:54,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 06:06:54,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:54,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:54,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:54,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:54,141 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:54,148 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 [2021-11-20 06:06:54,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:54,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:06:54,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:54,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:54,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:54,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:06:54,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:06:54,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 06:06:54,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:54,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:54,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:54,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:54,219 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:54,233 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 [2021-11-20 06:06:54,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:54,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:54,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:54,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:54,247 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:06:54,248 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:06:54,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 06:06:54,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:54,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:54,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:54,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:54,306 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:54,313 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 [2021-11-20 06:06:54,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:54,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:54,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:54,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:54,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:06:54,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:06:54,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 06:06:54,348 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:54,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:54,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:54,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:54,392 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:54,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-20 06:06:54,399 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 [2021-11-20 06:06:54,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:54,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:06:54,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:54,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:54,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:54,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:06:54,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:06:54,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:54,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:54,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:54,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:54,474 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:54,482 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 [2021-11-20 06:06:54,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:54,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:06:54,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:54,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:54,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:54,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:06:54,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:06:54,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-20 06:06:54,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:54,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:54,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:54,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:54,553 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:54,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-20 06:06:54,555 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 [2021-11-20 06:06:54,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:54,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:06:54,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:54,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:54,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:54,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:06:54,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:06:54,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:54,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:54,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:54,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:54,653 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:54,661 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 [2021-11-20 06:06:54,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:54,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:06:54,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:54,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:54,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:54,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:06:54,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:06:54,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-20 06:06:54,688 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:54,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:54,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:54,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:54,734 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:54,741 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 [2021-11-20 06:06:54,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:54,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:54,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:54,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:54,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:06:54,756 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:06:54,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-20 06:06:54,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:54,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:54,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:54,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:54,807 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:54,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-20 06:06:54,813 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 [2021-11-20 06:06:54,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:54,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:54,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:54,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:54,841 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:06:54,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:06:54,864 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:06:54,897 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-11-20 06:06:54,898 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-11-20 06:06:54,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:54,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:54,900 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:54,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-20 06:06:54,944 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:06:54,977 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 06:06:54,977 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:06:54,977 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, ULTIMATE.start_main_~length2~0#1) = -1*ULTIMATE.start_main_~i~1#1 + 1*ULTIMATE.start_main_~length2~0#1 Supporting invariants [] [2021-11-20 06:06:55,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:55,037 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-11-20 06:06:55,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:55,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:06:55,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:06:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:55,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 06:06:55,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:06:55,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:06:55,135 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-20 06:06:55,135 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-11-20 06:06:55,156 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 31 states and 44 transitions. Complement of second has 6 states. [2021-11-20 06:06:55,157 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 [2021-11-20 06:06:55,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-11-20 06:06:55,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2021-11-20 06:06:55,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 2 letters. [2021-11-20 06:06:55,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:06:55,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 9 letters. Loop has 2 letters. [2021-11-20 06:06:55,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:06:55,160 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 4 letters. [2021-11-20 06:06:55,160 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:06:55,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 44 transitions. [2021-11-20 06:06:55,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-20 06:06:55,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 21 states and 29 transitions. [2021-11-20 06:06:55,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-11-20 06:06:55,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-20 06:06:55,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 29 transitions. [2021-11-20 06:06:55,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:06:55,164 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-11-20 06:06:55,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 29 transitions. [2021-11-20 06:06:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-20 06:06:55,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.380952380952381) internal successors, (29), 20 states have internal predecessors, (29), 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) [2021-11-20 06:06:55,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2021-11-20 06:06:55,167 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-11-20 06:06:55,167 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-11-20 06:06:55,167 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 06:06:55,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 29 transitions. [2021-11-20 06:06:55,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-20 06:06:55,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:06:55,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:06:55,169 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:55,169 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:55,170 INFO L791 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 293#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 297#L532 assume !(main_~length1~0#1 < 1); 294#L532-2 assume !(main_~length2~0#1 < 1); 288#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 289#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 298#L541-4 main_~i~1#1 := 0; 299#L547-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 304#L547-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcspn } true;cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset, cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrcspn_#res#1;havoc cstrcspn_#t~mem4#1, cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset, cstrcspn_#t~mem5#1, cstrcspn_#t~mem6#1, cstrcspn_#t~short7#1, cstrcspn_#t~mem9#1, cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset, cstrcspn_#t~mem3#1, cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset, cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset, cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, cstrcspn_~c~0#1;cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset := cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset;cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset := cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset;havoc cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;havoc cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;havoc cstrcspn_~c~0#1;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset; 303#L519-4 [2021-11-20 06:06:55,170 INFO L793 eck$LassoCheckResult]: Loop: 303#L519-4 call cstrcspn_#t~mem3#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 307#L519-1 assume !!(0 != cstrcspn_#t~mem3#1);havoc cstrcspn_#t~mem3#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem4#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem4#1;havoc cstrcspn_#t~mem4#1; 301#L522-5 call cstrcspn_#t~mem5#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := 0 != cstrcspn_#t~mem5#1; 308#L522-1 assume cstrcspn_#t~short7#1;call cstrcspn_#t~mem6#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := cstrcspn_#t~mem6#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 300#L522-3 assume !cstrcspn_#t~short7#1;havoc cstrcspn_#t~mem5#1;havoc cstrcspn_#t~mem6#1;havoc cstrcspn_#t~short7#1; 295#L522-6 call cstrcspn_#t~mem9#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1); 296#L524 assume !(cstrcspn_#t~mem9#1 == cstrcspn_~c~0#1);havoc cstrcspn_#t~mem9#1; 302#L519-3 cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset := cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_#t~post2#1.base, 1 + cstrcspn_#t~post2#1.offset;havoc cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset; 303#L519-4 [2021-11-20 06:06:55,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:55,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2021-11-20 06:06:55,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:55,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460674640] [2021-11-20 06:06:55,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:55,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:55,195 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:55,232 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:55,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:55,233 INFO L85 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 1 times [2021-11-20 06:06:55,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:55,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044757635] [2021-11-20 06:06:55,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:55,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:55,253 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:55,281 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:55,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:55,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1903570310, now seen corresponding path program 1 times [2021-11-20 06:06:55,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:55,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351912728] [2021-11-20 06:06:55,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:55,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:55,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:06:55,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:06:55,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351912728] [2021-11-20 06:06:55,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351912728] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:06:55,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:06:55,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:06:55,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795830838] [2021-11-20 06:06:55,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:06:55,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:55,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:06:55,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:06:55,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:06:55,914 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. cyclomatic complexity: 11 Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) [2021-11-20 06:06:56,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:06:56,034 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2021-11-20 06:06:56,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:06:56,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2021-11-20 06:06:56,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-20 06:06:56,045 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 22 states and 29 transitions. [2021-11-20 06:06:56,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-20 06:06:56,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-20 06:06:56,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 29 transitions. [2021-11-20 06:06:56,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:06:56,046 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2021-11-20 06:06:56,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 29 transitions. [2021-11-20 06:06:56,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-11-20 06:06:56,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 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) [2021-11-20 06:06:56,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2021-11-20 06:06:56,053 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-11-20 06:06:56,053 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-11-20 06:06:56,053 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-20 06:06:56,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2021-11-20 06:06:56,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-20 06:06:56,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:06:56,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:06:56,056 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:56,056 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:56,057 INFO L791 eck$LassoCheckResult]: Stem: 356#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 357#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 363#L532 assume !(main_~length1~0#1 < 1); 360#L532-2 assume !(main_~length2~0#1 < 1); 354#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 355#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 371#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 372#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 364#L541-4 main_~i~1#1 := 0; 365#L547-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 370#L547-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcspn } true;cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset, cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrcspn_#res#1;havoc cstrcspn_#t~mem4#1, cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset, cstrcspn_#t~mem5#1, cstrcspn_#t~mem6#1, cstrcspn_#t~short7#1, cstrcspn_#t~mem9#1, cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset, cstrcspn_#t~mem3#1, cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset, cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset, cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, cstrcspn_~c~0#1;cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset := cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset;cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset := cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset;havoc cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;havoc cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;havoc cstrcspn_~c~0#1;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset; 367#L519-4 [2021-11-20 06:06:56,057 INFO L793 eck$LassoCheckResult]: Loop: 367#L519-4 call cstrcspn_#t~mem3#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 373#L519-1 assume !!(0 != cstrcspn_#t~mem3#1);havoc cstrcspn_#t~mem3#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem4#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem4#1;havoc cstrcspn_#t~mem4#1; 369#L522-5 call cstrcspn_#t~mem5#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := 0 != cstrcspn_#t~mem5#1; 374#L522-1 assume cstrcspn_#t~short7#1;call cstrcspn_#t~mem6#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := cstrcspn_#t~mem6#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 368#L522-3 assume !cstrcspn_#t~short7#1;havoc cstrcspn_#t~mem5#1;havoc cstrcspn_#t~mem6#1;havoc cstrcspn_#t~short7#1; 361#L522-6 call cstrcspn_#t~mem9#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1); 362#L524 assume !(cstrcspn_#t~mem9#1 == cstrcspn_~c~0#1);havoc cstrcspn_#t~mem9#1; 366#L519-3 cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset := cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_#t~post2#1.base, 1 + cstrcspn_#t~post2#1.offset;havoc cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset; 367#L519-4 [2021-11-20 06:06:56,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:56,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2021-11-20 06:06:56,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:56,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658096638] [2021-11-20 06:06:56,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:56,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:56,102 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:56,124 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:56,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:56,127 INFO L85 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 2 times [2021-11-20 06:06:56,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:56,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801332174] [2021-11-20 06:06:56,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:56,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:56,167 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:56,177 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:56,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:56,178 INFO L85 PathProgramCache]: Analyzing trace with hash -164170776, now seen corresponding path program 1 times [2021-11-20 06:06:56,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:56,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472545048] [2021-11-20 06:06:56,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:56,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:56,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:06:56,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:06:56,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472545048] [2021-11-20 06:06:56,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472545048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:06:56,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:06:56,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:06:56,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006340453] [2021-11-20 06:06:56,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:06:56,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:06:56,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:06:56,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:06:56,690 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. cyclomatic complexity: 10 Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 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) [2021-11-20 06:06:56,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:06:56,856 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2021-11-20 06:06:56,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 06:06:56,857 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 41 transitions. [2021-11-20 06:06:56,859 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-11-20 06:06:56,859 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 41 transitions. [2021-11-20 06:06:56,860 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-11-20 06:06:56,860 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-11-20 06:06:56,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 41 transitions. [2021-11-20 06:06:56,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:06:56,861 INFO L681 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-11-20 06:06:56,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 41 transitions. [2021-11-20 06:06:56,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2021-11-20 06:06:56,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 30 states have internal predecessors, (38), 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) [2021-11-20 06:06:56,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-11-20 06:06:56,865 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-11-20 06:06:56,865 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-11-20 06:06:56,865 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-20 06:06:56,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2021-11-20 06:06:56,866 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-11-20 06:06:56,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:06:56,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:06:56,867 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:56,867 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:56,867 INFO L791 eck$LassoCheckResult]: Stem: 435#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 436#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 442#L532 assume !(main_~length1~0#1 < 1); 439#L532-2 assume !(main_~length2~0#1 < 1); 433#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 434#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 449#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 450#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 443#L541-4 main_~i~1#1 := 0; 444#L547-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 448#L547-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcspn } true;cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset, cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrcspn_#res#1;havoc cstrcspn_#t~mem4#1, cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset, cstrcspn_#t~mem5#1, cstrcspn_#t~mem6#1, cstrcspn_#t~short7#1, cstrcspn_#t~mem9#1, cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset, cstrcspn_#t~mem3#1, cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset, cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset, cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, cstrcspn_~c~0#1;cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset := cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset;cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset := cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset;havoc cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;havoc cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;havoc cstrcspn_~c~0#1;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset; 447#L519-4 [2021-11-20 06:06:56,868 INFO L793 eck$LassoCheckResult]: Loop: 447#L519-4 call cstrcspn_#t~mem3#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 452#L519-1 assume !!(0 != cstrcspn_#t~mem3#1);havoc cstrcspn_#t~mem3#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem4#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem4#1;havoc cstrcspn_#t~mem4#1; 454#L522-5 call cstrcspn_#t~mem5#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := 0 != cstrcspn_#t~mem5#1; 453#L522-1 assume !cstrcspn_#t~short7#1; 445#L522-3 assume !cstrcspn_#t~short7#1;havoc cstrcspn_#t~mem5#1;havoc cstrcspn_#t~mem6#1;havoc cstrcspn_#t~short7#1; 440#L522-6 call cstrcspn_#t~mem9#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1); 441#L524 assume !(cstrcspn_#t~mem9#1 == cstrcspn_~c~0#1);havoc cstrcspn_#t~mem9#1; 446#L519-3 cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset := cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_#t~post2#1.base, 1 + cstrcspn_#t~post2#1.offset;havoc cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset; 447#L519-4 [2021-11-20 06:06:56,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:56,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 2 times [2021-11-20 06:06:56,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:56,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694338252] [2021-11-20 06:06:56,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:56,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:56,880 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:56,894 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:56,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:56,895 INFO L85 PathProgramCache]: Analyzing trace with hash -903038413, now seen corresponding path program 1 times [2021-11-20 06:06:56,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:56,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469885042] [2021-11-20 06:06:56,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:56,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:56,901 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:56,907 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:56,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:56,908 INFO L85 PathProgramCache]: Analyzing trace with hash -162323734, now seen corresponding path program 1 times [2021-11-20 06:06:56,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:56,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320031483] [2021-11-20 06:06:56,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:56,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:56,953 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:56,986 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:57,885 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:06:57,886 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:06:57,886 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:06:57,886 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:06:57,886 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:06:57,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:57,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:06:57,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:06:57,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration5_Lasso [2021-11-20 06:06:57,886 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:06:57,886 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:06:57,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:57,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:57,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:57,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:57,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:06:58,912 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:06:58,912 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:06:58,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:58,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:58,921 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:58,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-20 06:06:58,928 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 [2021-11-20 06:06:58,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:58,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:58,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:58,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:58,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:06:58,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:06:58,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:58,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-11-20 06:06:58,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:58,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:58,994 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:58,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-20 06:06:58,995 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 [2021-11-20 06:06:59,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:59,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:06:59,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:59,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:59,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:59,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:06:59,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:06:59,006 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:59,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-11-20 06:06:59,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:59,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:59,031 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:59,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-20 06:06:59,033 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 [2021-11-20 06:06:59,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:59,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:06:59,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:59,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:59,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:59,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:06:59,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:06:59,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:59,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-11-20 06:06:59,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:59,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:59,078 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:59,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-20 06:06:59,088 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 [2021-11-20 06:06:59,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:59,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:06:59,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:59,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:59,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:59,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:06:59,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:06:59,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:59,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:59,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:59,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:59,125 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:59,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-20 06:06:59,126 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 [2021-11-20 06:06:59,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:59,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:06:59,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:59,135 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-20 06:06:59,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:59,136 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-20 06:06:59,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:06:59,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:59,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:59,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:59,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:59,164 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:59,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-20 06:06:59,168 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 [2021-11-20 06:06:59,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:59,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:59,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:59,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:59,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:06:59,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:06:59,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:06:59,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:59,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:59,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:59,260 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:59,269 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 [2021-11-20 06:06:59,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-20 06:06:59,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:06:59,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:06:59,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:06:59,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:06:59,290 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:06:59,290 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:06:59,308 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:06:59,337 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-11-20 06:06:59,337 INFO L444 ModelExtractionUtils]: 20 out of 31 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-11-20 06:06:59,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:06:59,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:06:59,338 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:06:59,345 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:06:59,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-20 06:06:59,370 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 06:06:59,370 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:06:59,371 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_3, ULTIMATE.start_cstrcspn_~sc1~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_3 - 1*ULTIMATE.start_cstrcspn_~sc1~0#1.offset Supporting invariants [] [2021-11-20 06:06:59,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:59,446 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2021-11-20 06:06:59,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:59,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 06:06:59,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:06:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:06:59,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:06:59,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:06:59,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:06:59,701 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-11-20 06:06:59,701 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2021-11-20 06:06:59,781 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) Result 48 states and 59 transitions. Complement of second has 5 states. [2021-11-20 06:06:59,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 06:06:59,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2021-11-20 06:06:59,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2021-11-20 06:06:59,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 11 letters. Loop has 8 letters. [2021-11-20 06:06:59,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:06:59,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 19 letters. Loop has 8 letters. [2021-11-20 06:06:59,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:06:59,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 11 letters. Loop has 16 letters. [2021-11-20 06:06:59,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:06:59,786 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 59 transitions. [2021-11-20 06:06:59,787 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 06:06:59,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 27 states and 35 transitions. [2021-11-20 06:06:59,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-11-20 06:06:59,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-11-20 06:06:59,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2021-11-20 06:06:59,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 06:06:59,799 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-20 06:06:59,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2021-11-20 06:06:59,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-20 06:06:59,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 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) [2021-11-20 06:06:59,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-11-20 06:06:59,802 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-20 06:06:59,802 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-20 06:06:59,802 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-20 06:06:59,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-11-20 06:06:59,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 06:06:59,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:06:59,803 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:06:59,804 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:06:59,804 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 06:06:59,805 INFO L791 eck$LassoCheckResult]: Stem: 637#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 638#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 642#L532 assume !(main_~length1~0#1 < 1); 639#L532-2 assume !(main_~length2~0#1 < 1); 633#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 634#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 652#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 653#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 643#L541-4 main_~i~1#1 := 0; 644#L547-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 635#L547-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 636#L547-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 650#L547-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcspn } true;cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset, cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrcspn_#res#1;havoc cstrcspn_#t~mem4#1, cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset, cstrcspn_#t~mem5#1, cstrcspn_#t~mem6#1, cstrcspn_#t~short7#1, cstrcspn_#t~mem9#1, cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset, cstrcspn_#t~mem3#1, cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset, cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset, cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, cstrcspn_~c~0#1;cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset := cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset;cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset := cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset;havoc cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;havoc cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;havoc cstrcspn_~c~0#1;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset; 651#L519-4 call cstrcspn_#t~mem3#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 655#L519-1 assume !!(0 != cstrcspn_#t~mem3#1);havoc cstrcspn_#t~mem3#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem4#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem4#1;havoc cstrcspn_#t~mem4#1; 646#L522-5 [2021-11-20 06:06:59,805 INFO L793 eck$LassoCheckResult]: Loop: 646#L522-5 call cstrcspn_#t~mem5#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := 0 != cstrcspn_#t~mem5#1; 656#L522-1 assume cstrcspn_#t~short7#1;call cstrcspn_#t~mem6#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := cstrcspn_#t~mem6#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 645#L522-3 assume !!cstrcspn_#t~short7#1;havoc cstrcspn_#t~mem5#1;havoc cstrcspn_#t~mem6#1;havoc cstrcspn_#t~short7#1;cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset := cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_#t~post8#1.base, 1 + cstrcspn_#t~post8#1.offset;havoc cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset; 646#L522-5 [2021-11-20 06:06:59,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-20 06:06:59,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:59,806 INFO L85 PathProgramCache]: Analyzing trace with hash 2055034687, now seen corresponding path program 1 times [2021-11-20 06:06:59,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:59,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152568221] [2021-11-20 06:06:59,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:59,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:59,824 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:59,843 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:59,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:59,843 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 1 times [2021-11-20 06:06:59,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:59,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060190945] [2021-11-20 06:06:59,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:59,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:59,850 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:59,855 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:06:59,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:06:59,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1074579938, now seen corresponding path program 1 times [2021-11-20 06:06:59,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:06:59,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066184072] [2021-11-20 06:06:59,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:06:59,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:06:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:59,876 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:06:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:06:59,897 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:07:01,574 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:07:01,575 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:07:01,575 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:07:01,575 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:07:01,575 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:07:01,575 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:01,576 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:07:01,576 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:07:01,576 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration6_Lasso [2021-11-20 06:07:01,576 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:07:01,576 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:07:01,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:01,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:02,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:02,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:02,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:03,394 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:07:03,395 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:07:03,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,405 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-20 06:07:03,407 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 [2021-11-20 06:07:03,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:03,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:03,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:03,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:03,418 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:03,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:03,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,443 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,444 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 [2021-11-20 06:07:03,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-20 06:07:03,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:03,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:03,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:03,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:03,455 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:03,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:03,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,478 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,480 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 [2021-11-20 06:07:03,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-20 06:07:03,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:03,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:07:03,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:07:03,504 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:03,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-11-20 06:07:03,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,543 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-20 06:07:03,545 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 [2021-11-20 06:07:03,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:03,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:03,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:03,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:03,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:03,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:03,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,583 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-20 06:07:03,585 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 [2021-11-20 06:07:03,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:03,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:03,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:03,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:03,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:03,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:03,619 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,620 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-20 06:07:03,621 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 [2021-11-20 06:07:03,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:03,631 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:07:03,632 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:07:03,634 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:03,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:03,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,659 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-20 06:07:03,661 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 [2021-11-20 06:07:03,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,670 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:03,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:03,671 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:03,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:03,672 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:03,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:03,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,696 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-20 06:07:03,698 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 [2021-11-20 06:07:03,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:03,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:03,707 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:03,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:03,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:03,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-11-20 06:07:03,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,745 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-20 06:07:03,748 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 [2021-11-20 06:07:03,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:03,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:03,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:03,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:03,770 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:03,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-11-20 06:07:03,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,795 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-20 06:07:03,797 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 [2021-11-20 06:07:03,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:03,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:03,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:03,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:03,808 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:03,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-11-20 06:07:03,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,832 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-20 06:07:03,835 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 [2021-11-20 06:07:03,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:03,846 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:07:03,846 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:07:03,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:03,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:03,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,875 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-20 06:07:03,877 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 [2021-11-20 06:07:03,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:03,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:03,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:03,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:03,909 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:03,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:03,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,935 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-20 06:07:03,937 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 [2021-11-20 06:07:03,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:03,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:03,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:03,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:03,948 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:03,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:03,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:03,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:03,977 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:03,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-20 06:07:03,979 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 [2021-11-20 06:07:03,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:03,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:03,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:03,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:03,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:04,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:04,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:04,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:04,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:04,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:04,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:04,033 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:04,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-20 06:07:04,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:07:04,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:04,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:04,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:04,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:04,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:04,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:04,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:04,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:04,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:04,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:04,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:04,070 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:04,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-20 06:07:04,090 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 [2021-11-20 06:07:04,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:04,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:04,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:04,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:04,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:04,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:04,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:04,100 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:04,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:04,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:04,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:04,126 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:04,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-11-20 06:07:04,127 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 [2021-11-20 06:07:04,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:04,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:04,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:04,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:04,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:04,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:04,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:04,138 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:04,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-11-20 06:07:04,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:04,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:04,166 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:04,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-11-20 06:07:04,167 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 [2021-11-20 06:07:04,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:04,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:04,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:04,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:04,179 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:07:04,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:07:04,197 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:04,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-11-20 06:07:04,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:04,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:04,222 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:04,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-11-20 06:07:04,224 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 [2021-11-20 06:07:04,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:04,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:04,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:04,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:04,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:04,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:04,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:04,237 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:04,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-11-20 06:07:04,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:04,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:04,262 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:04,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-11-20 06:07:04,265 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 [2021-11-20 06:07:04,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:04,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:04,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:04,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:04,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:04,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:04,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:04,276 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:04,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-11-20 06:07:04,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:04,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:04,301 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:04,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-11-20 06:07:04,315 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 [2021-11-20 06:07:04,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:04,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:04,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:04,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:04,329 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:07:04,329 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:07:04,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:04,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-11-20 06:07:04,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:04,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:04,357 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:04,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-11-20 06:07:04,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:07:04,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:04,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:04,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:04,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:04,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:04,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:04,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:04,370 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:04,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:04,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:04,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:04,396 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:04,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-11-20 06:07:04,398 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 [2021-11-20 06:07:04,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:04,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:04,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:04,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:04,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:07:04,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:07:04,462 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:07:04,590 INFO L443 ModelExtractionUtils]: Simplification made 28 calls to the SMT solver. [2021-11-20 06:07:04,590 INFO L444 ModelExtractionUtils]: 17 out of 58 variables were initially zero. Simplification set additionally 38 variables to zero. [2021-11-20 06:07:04,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:04,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:04,593 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:04,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:07:04,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-11-20 06:07:04,615 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 06:07:04,615 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:07:04,615 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13#1.base)_4, ULTIMATE.start_cstrcspn_~s~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13#1.base)_4 - 1*ULTIMATE.start_cstrcspn_~s~0#1.offset Supporting invariants [] [2021-11-20 06:07:04,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:04,763 INFO L297 tatePredicateManager]: 25 out of 26 supporting invariants were superfluous and have been removed [2021-11-20 06:07:04,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:04,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 06:07:04,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:07:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:04,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:07:04,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:07:04,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:07:04,993 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-11-20 06:07:04,993 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2021-11-20 06:07:05,063 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 54 states and 67 transitions. Complement of second has 7 states. [2021-11-20 06:07:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 06:07:05,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2021-11-20 06:07:05,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2021-11-20 06:07:05,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 15 letters. Loop has 3 letters. [2021-11-20 06:07:05,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:07:05,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 18 letters. Loop has 3 letters. [2021-11-20 06:07:05,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:07:05,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 15 letters. Loop has 6 letters. [2021-11-20 06:07:05,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:07:05,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 67 transitions. [2021-11-20 06:07:05,077 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 06:07:05,078 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 40 states and 50 transitions. [2021-11-20 06:07:05,078 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-11-20 06:07:05,078 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-11-20 06:07:05,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 50 transitions. [2021-11-20 06:07:05,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 06:07:05,079 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-11-20 06:07:05,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 50 transitions. [2021-11-20 06:07:05,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2021-11-20 06:07:05,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.28125) internal successors, (41), 31 states have internal predecessors, (41), 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) [2021-11-20 06:07:05,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2021-11-20 06:07:05,089 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2021-11-20 06:07:05,089 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2021-11-20 06:07:05,089 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-20 06:07:05,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 41 transitions. [2021-11-20 06:07:05,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 06:07:05,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:07:05,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:07:05,095 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:07:05,095 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 06:07:05,095 INFO L791 eck$LassoCheckResult]: Stem: 907#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 908#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 914#L532 assume !(main_~length1~0#1 < 1); 911#L532-2 assume !(main_~length2~0#1 < 1); 905#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 906#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 924#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 925#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 915#L541-4 main_~i~1#1 := 0; 916#L547-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 909#L547-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 910#L547-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 922#L547-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcspn } true;cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset, cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrcspn_#res#1;havoc cstrcspn_#t~mem4#1, cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset, cstrcspn_#t~mem5#1, cstrcspn_#t~mem6#1, cstrcspn_#t~short7#1, cstrcspn_#t~mem9#1, cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset, cstrcspn_#t~mem3#1, cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset, cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset, cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, cstrcspn_~c~0#1;cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset := cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset;cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset := cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset;havoc cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;havoc cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;havoc cstrcspn_~c~0#1;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset; 923#L519-4 call cstrcspn_#t~mem3#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 926#L519-1 assume !!(0 != cstrcspn_#t~mem3#1);havoc cstrcspn_#t~mem3#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem4#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem4#1;havoc cstrcspn_#t~mem4#1; 934#L522-5 call cstrcspn_#t~mem5#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := 0 != cstrcspn_#t~mem5#1; 930#L522-1 assume !cstrcspn_#t~short7#1; 919#L522-3 assume !cstrcspn_#t~short7#1;havoc cstrcspn_#t~mem5#1;havoc cstrcspn_#t~mem6#1;havoc cstrcspn_#t~short7#1; 912#L522-6 call cstrcspn_#t~mem9#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1); 913#L524 assume !(cstrcspn_#t~mem9#1 == cstrcspn_~c~0#1);havoc cstrcspn_#t~mem9#1; 920#L519-3 cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset := cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_#t~post2#1.base, 1 + cstrcspn_#t~post2#1.offset;havoc cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset; 921#L519-4 call cstrcspn_#t~mem3#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 928#L519-1 assume !!(0 != cstrcspn_#t~mem3#1);havoc cstrcspn_#t~mem3#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem4#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem4#1;havoc cstrcspn_#t~mem4#1; 918#L522-5 [2021-11-20 06:07:05,095 INFO L793 eck$LassoCheckResult]: Loop: 918#L522-5 call cstrcspn_#t~mem5#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := 0 != cstrcspn_#t~mem5#1; 929#L522-1 assume cstrcspn_#t~short7#1;call cstrcspn_#t~mem6#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := cstrcspn_#t~mem6#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 917#L522-3 assume !!cstrcspn_#t~short7#1;havoc cstrcspn_#t~mem5#1;havoc cstrcspn_#t~mem6#1;havoc cstrcspn_#t~short7#1;cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset := cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_#t~post8#1.base, 1 + cstrcspn_#t~post8#1.offset;havoc cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset; 918#L522-5 [2021-11-20 06:07:05,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:05,096 INFO L85 PathProgramCache]: Analyzing trace with hash -777149455, now seen corresponding path program 1 times [2021-11-20 06:07:05,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:05,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137763846] [2021-11-20 06:07:05,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:05,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:05,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:07:05,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:07:05,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137763846] [2021-11-20 06:07:05,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137763846] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:07:05,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367450464] [2021-11-20 06:07:05,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:05,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:07:05,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:05,436 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:07:05,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-11-20 06:07:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:05,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-20 06:07:05,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:07:05,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-20 06:07:05,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:05,771 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-11-20 06:07:05,771 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 47 treesize of output 31 [2021-11-20 06:07:06,277 INFO L354 Elim1Store]: treesize reduction 42, result has 6.7 percent of original size [2021-11-20 06:07:06,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 23 [2021-11-20 06:07:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:07:06,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:07:06,388 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 56 treesize of output 50 [2021-11-20 06:07:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:07:06,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367450464] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:07:06,548 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:07:06,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2021-11-20 06:07:06,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027667053] [2021-11-20 06:07:06,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:07:06,552 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 06:07:06,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:06,552 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 2 times [2021-11-20 06:07:06,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:06,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566722406] [2021-11-20 06:07:06,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:06,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:06,561 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:07:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:06,566 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:07:06,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:07:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-20 06:07:06,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2021-11-20 06:07:06,701 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. cyclomatic complexity: 14 Second operand has 22 states, 21 states have (on average 2.857142857142857) internal successors, (60), 22 states have internal predecessors, (60), 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) [2021-11-20 06:07:07,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:07:07,095 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2021-11-20 06:07:07,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:07:07,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 64 transitions. [2021-11-20 06:07:07,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 06:07:07,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 45 states and 57 transitions. [2021-11-20 06:07:07,099 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-11-20 06:07:07,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-11-20 06:07:07,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 57 transitions. [2021-11-20 06:07:07,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 06:07:07,099 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 57 transitions. [2021-11-20 06:07:07,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 57 transitions. [2021-11-20 06:07:07,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-11-20 06:07:07,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 42 states have internal predecessors, (55), 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) [2021-11-20 06:07:07,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2021-11-20 06:07:07,112 INFO L704 BuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2021-11-20 06:07:07,112 INFO L587 BuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2021-11-20 06:07:07,113 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-20 06:07:07,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 55 transitions. [2021-11-20 06:07:07,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 06:07:07,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:07:07,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:07:07,117 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:07:07,118 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 06:07:07,118 INFO L791 eck$LassoCheckResult]: Stem: 1162#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1163#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1169#L532 assume !(main_~length1~0#1 < 1); 1166#L532-2 assume !(main_~length2~0#1 < 1); 1160#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 1161#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 1180#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 1181#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 1170#L541-4 main_~i~1#1 := 0; 1171#L547-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 1164#L547-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1165#L547-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 1178#L547-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcspn } true;cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset, cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrcspn_#res#1;havoc cstrcspn_#t~mem4#1, cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset, cstrcspn_#t~mem5#1, cstrcspn_#t~mem6#1, cstrcspn_#t~short7#1, cstrcspn_#t~mem9#1, cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset, cstrcspn_#t~mem3#1, cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset, cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset, cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, cstrcspn_~c~0#1;cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset := cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset;cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset := cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset;havoc cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;havoc cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;havoc cstrcspn_~c~0#1;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset; 1179#L519-4 call cstrcspn_#t~mem3#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 1193#L519-1 assume !!(0 != cstrcspn_#t~mem3#1);havoc cstrcspn_#t~mem3#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem4#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem4#1;havoc cstrcspn_#t~mem4#1; 1190#L522-5 call cstrcspn_#t~mem5#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := 0 != cstrcspn_#t~mem5#1; 1188#L522-1 assume cstrcspn_#t~short7#1;call cstrcspn_#t~mem6#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := cstrcspn_#t~mem6#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 1189#L522-3 assume !cstrcspn_#t~short7#1;havoc cstrcspn_#t~mem5#1;havoc cstrcspn_#t~mem6#1;havoc cstrcspn_#t~short7#1; 1167#L522-6 call cstrcspn_#t~mem9#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1); 1168#L524 assume !(cstrcspn_#t~mem9#1 == cstrcspn_~c~0#1);havoc cstrcspn_#t~mem9#1; 1176#L519-3 cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset := cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_#t~post2#1.base, 1 + cstrcspn_#t~post2#1.offset;havoc cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset; 1177#L519-4 call cstrcspn_#t~mem3#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 1185#L519-1 assume !!(0 != cstrcspn_#t~mem3#1);havoc cstrcspn_#t~mem3#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem4#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem4#1;havoc cstrcspn_#t~mem4#1; 1173#L522-5 [2021-11-20 06:07:07,118 INFO L793 eck$LassoCheckResult]: Loop: 1173#L522-5 call cstrcspn_#t~mem5#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := 0 != cstrcspn_#t~mem5#1; 1187#L522-1 assume cstrcspn_#t~short7#1;call cstrcspn_#t~mem6#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := cstrcspn_#t~mem6#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 1172#L522-3 assume !!cstrcspn_#t~short7#1;havoc cstrcspn_#t~mem5#1;havoc cstrcspn_#t~mem6#1;havoc cstrcspn_#t~short7#1;cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset := cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_#t~post8#1.base, 1 + cstrcspn_#t~post8#1.offset;havoc cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset; 1173#L522-5 [2021-11-20 06:07:07,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:07,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1742810479, now seen corresponding path program 1 times [2021-11-20 06:07:07,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:07,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061813209] [2021-11-20 06:07:07,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:07,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:07,407 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:07:07,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:07:07,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061813209] [2021-11-20 06:07:07,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061813209] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:07:07,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667347376] [2021-11-20 06:07:07,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:07,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:07:07,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:07,411 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:07:07,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-11-20 06:07:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:07,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-20 06:07:07,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:07:07,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-20 06:07:07,671 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-11-20 06:07:07,671 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 47 treesize of output 31 [2021-11-20 06:07:08,003 INFO L354 Elim1Store]: treesize reduction 42, result has 6.7 percent of original size [2021-11-20 06:07:08,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 23 [2021-11-20 06:07:08,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:07:08,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:07:08,125 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 56 treesize of output 50 [2021-11-20 06:07:08,266 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 06:07:08,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667347376] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:07:08,266 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:07:08,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2021-11-20 06:07:08,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831473990] [2021-11-20 06:07:08,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:07:08,267 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 06:07:08,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:08,268 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 3 times [2021-11-20 06:07:08,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:08,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586757435] [2021-11-20 06:07:08,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:08,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:08,273 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:07:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:08,277 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:07:08,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:07:08,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-20 06:07:08,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2021-11-20 06:07:08,407 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. cyclomatic complexity: 18 Second operand has 22 states, 21 states have (on average 2.857142857142857) internal successors, (60), 22 states have internal predecessors, (60), 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) [2021-11-20 06:07:08,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:07:08,710 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2021-11-20 06:07:08,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:07:08,711 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 68 transitions. [2021-11-20 06:07:08,712 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 06:07:08,712 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 35 states and 44 transitions. [2021-11-20 06:07:08,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-20 06:07:08,713 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-11-20 06:07:08,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 44 transitions. [2021-11-20 06:07:08,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 06:07:08,713 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2021-11-20 06:07:08,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 44 transitions. [2021-11-20 06:07:08,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2021-11-20 06:07:08,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 33 states have internal predecessors, (43), 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) [2021-11-20 06:07:08,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2021-11-20 06:07:08,717 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 43 transitions. [2021-11-20 06:07:08,717 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 43 transitions. [2021-11-20 06:07:08,717 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-20 06:07:08,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 43 transitions. [2021-11-20 06:07:08,718 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 06:07:08,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:07:08,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:07:08,719 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:07:08,719 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 06:07:08,719 INFO L791 eck$LassoCheckResult]: Stem: 1431#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1432#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1438#L532 assume !(main_~length1~0#1 < 1); 1435#L532-2 assume !(main_~length2~0#1 < 1); 1429#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 1430#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 1449#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 1450#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 1451#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 1460#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 1439#L541-4 main_~i~1#1 := 0; 1440#L547-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 1433#L547-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1434#L547-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 1447#L547-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcspn } true;cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset, cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrcspn_#res#1;havoc cstrcspn_#t~mem4#1, cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset, cstrcspn_#t~mem5#1, cstrcspn_#t~mem6#1, cstrcspn_#t~short7#1, cstrcspn_#t~mem9#1, cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset, cstrcspn_#t~mem3#1, cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset, cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset, cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, cstrcspn_~c~0#1;cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset := cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset;cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset := cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset;havoc cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;havoc cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;havoc cstrcspn_~c~0#1;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset; 1448#L519-4 call cstrcspn_#t~mem3#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 1452#L519-1 assume !!(0 != cstrcspn_#t~mem3#1);havoc cstrcspn_#t~mem3#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem4#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem4#1;havoc cstrcspn_#t~mem4#1; 1444#L522-5 call cstrcspn_#t~mem5#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := 0 != cstrcspn_#t~mem5#1; 1456#L522-1 assume !cstrcspn_#t~short7#1; 1457#L522-3 assume !cstrcspn_#t~short7#1;havoc cstrcspn_#t~mem5#1;havoc cstrcspn_#t~mem6#1;havoc cstrcspn_#t~short7#1; 1436#L522-6 call cstrcspn_#t~mem9#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1); 1437#L524 assume !(cstrcspn_#t~mem9#1 == cstrcspn_~c~0#1);havoc cstrcspn_#t~mem9#1; 1445#L519-3 cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset := cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_#t~post2#1.base, 1 + cstrcspn_#t~post2#1.offset;havoc cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset; 1446#L519-4 call cstrcspn_#t~mem3#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 1453#L519-1 assume !!(0 != cstrcspn_#t~mem3#1);havoc cstrcspn_#t~mem3#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem4#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem4#1;havoc cstrcspn_#t~mem4#1; 1442#L522-5 [2021-11-20 06:07:08,720 INFO L793 eck$LassoCheckResult]: Loop: 1442#L522-5 call cstrcspn_#t~mem5#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := 0 != cstrcspn_#t~mem5#1; 1455#L522-1 assume cstrcspn_#t~short7#1;call cstrcspn_#t~mem6#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := cstrcspn_#t~mem6#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 1441#L522-3 assume !!cstrcspn_#t~short7#1;havoc cstrcspn_#t~mem5#1;havoc cstrcspn_#t~mem6#1;havoc cstrcspn_#t~short7#1;cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset := cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_#t~post8#1.base, 1 + cstrcspn_#t~post8#1.offset;havoc cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset; 1442#L522-5 [2021-11-20 06:07:08,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:08,720 INFO L85 PathProgramCache]: Analyzing trace with hash 409245907, now seen corresponding path program 2 times [2021-11-20 06:07:08,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:08,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834412852] [2021-11-20 06:07:08,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:08,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:08,743 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:07:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:08,765 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:07:08,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:08,766 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 4 times [2021-11-20 06:07:08,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:08,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117910031] [2021-11-20 06:07:08,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:08,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:08,771 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:07:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:08,776 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:07:08,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:08,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1567281202, now seen corresponding path program 1 times [2021-11-20 06:07:08,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:08,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291151627] [2021-11-20 06:07:08,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:08,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:08,869 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 06:07:08,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:07:08,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291151627] [2021-11-20 06:07:08,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291151627] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:07:08,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635170918] [2021-11-20 06:07:08,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:08,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:07:08,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:08,877 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:07:08,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-11-20 06:07:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:08,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-20 06:07:08,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:07:09,035 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-11-20 06:07:09,036 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 21 [2021-11-20 06:07:09,450 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-20 06:07:09,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 29 [2021-11-20 06:07:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 06:07:09,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:07:09,623 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:07:09,624 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 45 [2021-11-20 06:07:09,631 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:07:09,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 47 [2021-11-20 06:07:09,675 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-20 06:07:09,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-11-20 06:07:09,725 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 06:07:09,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635170918] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:07:09,725 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:07:09,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 17 [2021-11-20 06:07:09,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089062842] [2021-11-20 06:07:09,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:07:09,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:07:09,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-20 06:07:09,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-11-20 06:07:09,852 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. cyclomatic complexity: 14 Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 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) [2021-11-20 06:07:10,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:07:10,095 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2021-11-20 06:07:10,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 06:07:10,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 75 transitions. [2021-11-20 06:07:10,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 06:07:10,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 41 states and 51 transitions. [2021-11-20 06:07:10,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-11-20 06:07:10,098 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-11-20 06:07:10,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2021-11-20 06:07:10,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 06:07:10,098 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2021-11-20 06:07:10,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2021-11-20 06:07:10,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2021-11-20 06:07:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.263157894736842) internal successors, (48), 37 states have internal predecessors, (48), 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) [2021-11-20 06:07:10,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2021-11-20 06:07:10,103 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2021-11-20 06:07:10,103 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2021-11-20 06:07:10,103 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-20 06:07:10,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 48 transitions. [2021-11-20 06:07:10,104 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 06:07:10,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:07:10,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:07:10,105 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:07:10,105 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 06:07:10,105 INFO L791 eck$LassoCheckResult]: Stem: 1727#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1728#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1734#L532 assume !(main_~length1~0#1 < 1); 1731#L532-2 assume !(main_~length2~0#1 < 1); 1725#L535-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 1726#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 1745#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 1746#L541-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 1747#L541-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 1757#L541-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 1735#L541-4 main_~i~1#1 := 0; 1736#L547-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 1729#L547-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1730#L547-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 1743#L547-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcspn } true;cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset, cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrcspn_#res#1;havoc cstrcspn_#t~mem4#1, cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset, cstrcspn_#t~mem5#1, cstrcspn_#t~mem6#1, cstrcspn_#t~short7#1, cstrcspn_#t~mem9#1, cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset, cstrcspn_#t~mem3#1, cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset, cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset, cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, cstrcspn_~c~0#1;cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset := cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset;cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset := cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset;havoc cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;havoc cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;havoc cstrcspn_~c~0#1;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset; 1744#L519-4 call cstrcspn_#t~mem3#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 1748#L519-1 assume !!(0 != cstrcspn_#t~mem3#1);havoc cstrcspn_#t~mem3#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem4#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem4#1;havoc cstrcspn_#t~mem4#1; 1754#L522-5 call cstrcspn_#t~mem5#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := 0 != cstrcspn_#t~mem5#1; 1760#L522-1 assume cstrcspn_#t~short7#1;call cstrcspn_#t~mem6#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := cstrcspn_#t~mem6#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 1758#L522-3 assume !cstrcspn_#t~short7#1;havoc cstrcspn_#t~mem5#1;havoc cstrcspn_#t~mem6#1;havoc cstrcspn_#t~short7#1; 1732#L522-6 call cstrcspn_#t~mem9#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1); 1733#L524 assume !(cstrcspn_#t~mem9#1 == cstrcspn_~c~0#1);havoc cstrcspn_#t~mem9#1; 1741#L519-3 cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset := cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_#t~post2#1.base, 1 + cstrcspn_#t~post2#1.offset;havoc cstrcspn_#t~post2#1.base, cstrcspn_#t~post2#1.offset; 1742#L519-4 call cstrcspn_#t~mem3#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 1749#L519-1 assume !!(0 != cstrcspn_#t~mem3#1);havoc cstrcspn_#t~mem3#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem4#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem4#1;havoc cstrcspn_#t~mem4#1; 1738#L522-5 [2021-11-20 06:07:10,106 INFO L793 eck$LassoCheckResult]: Loop: 1738#L522-5 call cstrcspn_#t~mem5#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := 0 != cstrcspn_#t~mem5#1; 1751#L522-1 assume cstrcspn_#t~short7#1;call cstrcspn_#t~mem6#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short7#1 := cstrcspn_#t~mem6#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 1737#L522-3 assume !!cstrcspn_#t~short7#1;havoc cstrcspn_#t~mem5#1;havoc cstrcspn_#t~mem6#1;havoc cstrcspn_#t~short7#1;cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset := cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_#t~post8#1.base, 1 + cstrcspn_#t~post8#1.offset;havoc cstrcspn_#t~post8#1.base, cstrcspn_#t~post8#1.offset; 1738#L522-5 [2021-11-20 06:07:10,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:10,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1365761455, now seen corresponding path program 2 times [2021-11-20 06:07:10,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:10,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442800845] [2021-11-20 06:07:10,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:10,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:10,128 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:07:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:10,151 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:07:10,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:10,152 INFO L85 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 5 times [2021-11-20 06:07:10,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:10,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238010668] [2021-11-20 06:07:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:10,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:10,157 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:07:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:10,161 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:07:10,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:10,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1174254192, now seen corresponding path program 1 times [2021-11-20 06:07:10,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:10,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514133841] [2021-11-20 06:07:10,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:10,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:10,183 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:07:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:07:10,212 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:07:13,268 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:07:13,268 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:07:13,268 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:07:13,268 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:07:13,268 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:07:13,268 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:13,268 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:07:13,269 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:07:13,269 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration10_Lasso [2021-11-20 06:07:13,269 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:07:13,269 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:07:13,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:13,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:13,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:07:15,908 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-20 06:07:17,052 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:07:17,052 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:07:17,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:17,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:17,055 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:17,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-11-20 06:07:17,057 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 [2021-11-20 06:07:17,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:17,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:17,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:17,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:17,067 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:07:17,067 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:07:17,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:17,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:17,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:17,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:17,119 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:17,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-11-20 06:07:17,123 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 [2021-11-20 06:07:17,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:17,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:07:17,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:17,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:17,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:17,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:07:17,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:07:17,133 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:17,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-11-20 06:07:17,157 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:17,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:17,159 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:17,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-11-20 06:07:17,160 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 [2021-11-20 06:07:17,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:17,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:17,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:17,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:17,172 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:07:17,172 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:07:17,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:07:17,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-11-20 06:07:17,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:17,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:17,216 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:17,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-11-20 06:07:17,217 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 [2021-11-20 06:07:17,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:07:17,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:07:17,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:07:17,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:07:17,243 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:07:17,243 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:07:17,280 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:07:17,323 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-11-20 06:07:17,323 INFO L444 ModelExtractionUtils]: 46 out of 61 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-11-20 06:07:17,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:07:17,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:17,329 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:17,331 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:07:17,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-11-20 06:07:17,362 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 06:07:17,362 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:07:17,362 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13#1.base)_5, ULTIMATE.start_cstrcspn_~s~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13#1.base)_5 - 1*ULTIMATE.start_cstrcspn_~s~0#1.offset Supporting invariants [] [2021-11-20 06:07:17,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:17,579 INFO L297 tatePredicateManager]: 34 out of 35 supporting invariants were superfluous and have been removed [2021-11-20 06:07:17,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:17,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 06:07:17,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:07:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:17,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:07:17,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:07:17,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:07:17,837 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-11-20 06:07:17,837 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-11-20 06:07:17,910 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 56 states and 70 transitions. Complement of second has 7 states. [2021-11-20 06:07:17,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 06:07:17,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-11-20 06:07:17,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2021-11-20 06:07:17,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 25 letters. Loop has 3 letters. [2021-11-20 06:07:17,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:07:17,912 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 06:07:17,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:17,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:18,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 06:07:18,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:07:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:18,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:07:18,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:07:18,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:07:18,204 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2021-11-20 06:07:18,205 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-11-20 06:07:18,274 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 56 states and 70 transitions. Complement of second has 7 states. [2021-11-20 06:07:18,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 06:07:18,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-11-20 06:07:18,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2021-11-20 06:07:18,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 25 letters. Loop has 3 letters. [2021-11-20 06:07:18,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:07:18,278 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 06:07:18,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:18,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 06:07:18,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:07:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:18,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:07:18,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:07:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:07:18,532 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-11-20 06:07:18,532 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-11-20 06:07:18,593 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 55 states and 72 transitions. Complement of second has 6 states. [2021-11-20 06:07:18,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 06:07:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-11-20 06:07:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2021-11-20 06:07:18,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 25 letters. Loop has 3 letters. [2021-11-20 06:07:18,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:07:18,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 28 letters. Loop has 3 letters. [2021-11-20 06:07:18,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:07:18,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 25 letters. Loop has 6 letters. [2021-11-20 06:07:18,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:07:18,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 72 transitions. [2021-11-20 06:07:18,604 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 06:07:18,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 0 states and 0 transitions. [2021-11-20 06:07:18,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 06:07:18,604 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 06:07:18,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 06:07:18,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:07:18,605 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:07:18,605 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:07:18,605 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:07:18,605 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-11-20 06:07:18,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:07:18,606 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 06:07:18,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 06:07:18,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 06:07:18 BoogieIcfgContainer [2021-11-20 06:07:18,613 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 06:07:18,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:07:18,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:07:18,614 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:07:18,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:06:49" (3/4) ... [2021-11-20 06:07:18,618 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:07:18,618 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:07:18,619 INFO L158 Benchmark]: Toolchain (without parser) took 30173.08ms. Allocated memory was 88.1MB in the beginning and 197.1MB in the end (delta: 109.1MB). Free memory was 65.0MB in the beginning and 119.4MB in the end (delta: -54.5MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2021-11-20 06:07:18,619 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:07:18,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.24ms. Allocated memory is still 88.1MB. Free memory was 64.8MB in the beginning and 57.3MB in the end (delta: 7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:07:18,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.30ms. Allocated memory is still 88.1MB. Free memory was 57.3MB in the beginning and 55.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:07:18,620 INFO L158 Benchmark]: Boogie Preprocessor took 52.58ms. Allocated memory is still 88.1MB. Free memory was 55.2MB in the beginning and 53.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:07:18,621 INFO L158 Benchmark]: RCFGBuilder took 585.50ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 53.7MB in the beginning and 89.3MB in the end (delta: -35.6MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-11-20 06:07:18,621 INFO L158 Benchmark]: BuchiAutomizer took 28914.77ms. Allocated memory was 113.2MB in the beginning and 197.1MB in the end (delta: 83.9MB). Free memory was 89.3MB in the beginning and 119.4MB in the end (delta: -30.1MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2021-11-20 06:07:18,622 INFO L158 Benchmark]: Witness Printer took 4.44ms. Allocated memory is still 197.1MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:07:18,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.24ms. Allocated memory is still 88.1MB. Free memory was 64.8MB in the beginning and 57.3MB in the end (delta: 7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.30ms. Allocated memory is still 88.1MB. Free memory was 57.3MB in the beginning and 55.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.58ms. Allocated memory is still 88.1MB. Free memory was 55.2MB in the beginning and 53.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 585.50ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 53.7MB in the beginning and 89.3MB in the end (delta: -35.6MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 28914.77ms. Allocated memory was 113.2MB in the beginning and 197.1MB in the end (delta: 83.9MB). Free memory was 89.3MB in the beginning and 119.4MB in the end (delta: -30.1MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * Witness Printer took 4.44ms. Allocated memory is still 197.1MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (5 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 5 locations. One deterministic module has affine ranking function length2 + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -1 * sc1 + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 4 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. One nondeterministic module has affine ranking function -1 * s + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. 5 modules have a trivial ranking function, the largest among these consists of 22 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 28.8s and 11 iterations. TraceHistogramMax:2. Analysis of lassos took 25.1s. Construction of modules took 0.4s. Büchi inclusion checks took 2.9s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 5. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 18 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 43 states and ocurred in iteration 7. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 375 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 374 mSDsluCounter, 946 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 49 IncrementalHoareTripleChecker+Unchecked, 724 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 433 IncrementalHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 222 mSDtfsCounter, 433 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU2 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital279 mio100 ax108 hnf99 lsp89 ukn78 mio100 lsp48 div99 bol100 ite100 ukn100 eq178 hnf89 smp87 dnf452 smp70 tf100 neg98 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 77ms VariablesStem: 5 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-20 06:07:18,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:18,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-11-20 06:07:19,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2021-11-20 06:07:19,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f69c5d65-6502-4ef4-bb4f-7003e88f82fd/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE