./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX --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 bec73cbd355af8995620266d1bb50e13212a1740ed8bd583620b6985b8fd569c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:38:08,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:38:08,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:38:08,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:38:08,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:38:08,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:38:08,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:38:08,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:38:08,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:38:08,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:38:08,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:38:08,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:38:08,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:38:08,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:38:08,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:38:08,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:38:08,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:38:08,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:38:08,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:38:08,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:38:08,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:38:08,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:38:08,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:38:08,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:38:08,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:38:08,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:38:08,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:38:08,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:38:08,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:38:08,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:38:08,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:38:08,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:38:08,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:38:08,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:38:08,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:38:08,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:38:08,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:38:08,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:38:08,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:38:08,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:38:08,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:38:08,123 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 08:38:08,147 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:38:08,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:38:08,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:38:08,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:38:08,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:38:08,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:38:08,151 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:38:08,151 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 08:38:08,151 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 08:38:08,152 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 08:38:08,152 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 08:38:08,152 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 08:38:08,152 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 08:38:08,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:38:08,153 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:38:08,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 08:38:08,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:38:08,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:38:08,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:38:08,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 08:38:08,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 08:38:08,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 08:38:08,155 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:38:08,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:38:08,156 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 08:38:08,156 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:38:08,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 08:38:08,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:38:08,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:38:08,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:38:08,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:38:08,158 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:38:08,159 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 08:38:08,159 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_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bec73cbd355af8995620266d1bb50e13212a1740ed8bd583620b6985b8fd569c [2021-11-09 08:38:08,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:38:08,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:38:08,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:38:08,434 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:38:08,435 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:38:08,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c [2021-11-09 08:38:08,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/data/90013de6a/cfde28aea3914e57b8911101ff9ddc01/FLAG6bb7de991 [2021-11-09 08:38:09,008 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:38:09,009 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c [2021-11-09 08:38:09,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/data/90013de6a/cfde28aea3914e57b8911101ff9ddc01/FLAG6bb7de991 [2021-11-09 08:38:09,384 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/data/90013de6a/cfde28aea3914e57b8911101ff9ddc01 [2021-11-09 08:38:09,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:38:09,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:38:09,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:38:09,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:38:09,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:38:09,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:38:09" (1/1) ... [2021-11-09 08:38:09,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c51f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:38:09, skipping insertion in model container [2021-11-09 08:38:09,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:38:09" (1/1) ... [2021-11-09 08:38:09,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:38:09,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:38:09,546 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c[387,400] [2021-11-09 08:38:09,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:38:09,605 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:38:09,619 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c[387,400] [2021-11-09 08:38:09,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:38:09,649 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:38:09,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:38:09 WrapperNode [2021-11-09 08:38:09,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:38:09,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:38:09,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:38:09,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:38:09,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:38:09" (1/1) ... [2021-11-09 08:38:09,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:38:09" (1/1) ... [2021-11-09 08:38:09,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:38:09,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:38:09,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:38:09,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:38:09,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:38:09" (1/1) ... [2021-11-09 08:38:09,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:38:09" (1/1) ... [2021-11-09 08:38:09,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:38:09" (1/1) ... [2021-11-09 08:38:09,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:38:09" (1/1) ... [2021-11-09 08:38:09,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:38:09" (1/1) ... [2021-11-09 08:38:09,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:38:09" (1/1) ... [2021-11-09 08:38:09,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:38:09" (1/1) ... [2021-11-09 08:38:09,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:38:09,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:38:09,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:38:09,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:38:09,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:38:09" (1/1) ... [2021-11-09 08:38:09,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:09,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:09,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:09,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 08:38:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:38:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:38:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:38:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:38:09,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:38:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 08:38:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:38:09,991 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:38:09,992 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-09 08:38:09,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:38:09 BoogieIcfgContainer [2021-11-09 08:38:09,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:38:09,996 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 08:38:09,999 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 08:38:10,004 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 08:38:10,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:38:10,005 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 08:38:09" (1/3) ... [2021-11-09 08:38:10,006 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@731a5c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 08:38:10, skipping insertion in model container [2021-11-09 08:38:10,006 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:38:10,006 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:38:09" (2/3) ... [2021-11-09 08:38:10,007 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@731a5c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 08:38:10, skipping insertion in model container [2021-11-09 08:38:10,007 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:38:10,007 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:38:09" (3/3) ... [2021-11-09 08:38:10,010 INFO L389 chiAutomizerObserver]: Analyzing ICFG verisec_sendmail_tTflag_arr_one_loop.c [2021-11-09 08:38:10,049 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 08:38:10,049 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 08:38:10,049 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 08:38:10,049 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 08:38:10,049 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 08:38:10,049 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 08:38:10,050 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 08:38:10,050 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 08:38:10,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) [2021-11-09 08:38:10,077 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-11-09 08:38:10,077 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:10,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:10,083 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 08:38:10,083 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:38:10,083 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 08:38:10,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) [2021-11-09 08:38:10,085 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-11-09 08:38:10,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:10,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:10,085 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 08:38:10,086 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:38:10,092 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 4#L21-3true [2021-11-09 08:38:10,092 INFO L793 eck$LassoCheckResult]: Loop: 4#L21-3true assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 12#L21-2true main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 4#L21-3true [2021-11-09 08:38:10,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:10,097 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-09 08:38:10,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:10,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833887631] [2021-11-09 08:38:10,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:10,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:10,188 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:10,227 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:10,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:10,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-11-09 08:38:10,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:10,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264626314] [2021-11-09 08:38:10,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:10,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:10,240 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:10,250 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:10,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:10,252 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-11-09 08:38:10,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:10,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227399316] [2021-11-09 08:38:10,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:10,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:10,279 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:10,307 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:10,869 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 08:38:10,870 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 08:38:10,870 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 08:38:10,870 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 08:38:10,871 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 08:38:10,871 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:10,871 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 08:38:10,871 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 08:38:10,871 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_sendmail_tTflag_arr_one_loop.c_Iteration1_Lasso [2021-11-09 08:38:10,871 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 08:38:10,872 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 08:38:10,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:10,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:10,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:10,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:10,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:10,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:10,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:10,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:10,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:10,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:10,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:10,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:11,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:11,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:11,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:11,396 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 08:38:11,401 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 08:38:11,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:11,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:11,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:11,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-09 08:38:11,413 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 [2021-11-09 08:38:11,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:11,420 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:38:11,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:11,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:11,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:11,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:38:11,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:38:11,454 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:11,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:11,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:11,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:11,485 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:11,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-09 08:38:11,491 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 [2021-11-09 08:38:11,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:11,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:11,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:11,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:11,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:38:11,508 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:38:11,520 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:11,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:11,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:11,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:11,557 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:11,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-09 08:38:11,562 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 [2021-11-09 08:38:11,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:11,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:38:11,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:11,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:11,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:11,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:38:11,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:38:11,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:11,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:11,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:11,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:11,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:11,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-09 08:38:11,622 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 [2021-11-09 08:38:11,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:11,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:38:11,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:11,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:11,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:11,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:38:11,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:38:11,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:11,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:11,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:11,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:11,673 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:11,694 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 [2021-11-09 08:38:11,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:11,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:38:11,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:11,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:11,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:11,704 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:38:11,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:38:11,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-09 08:38:11,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:11,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:11,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:11,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:11,753 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:11,775 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 [2021-11-09 08:38:11,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:11,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:38:11,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:11,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:11,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:11,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:38:11,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:38:11,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-09 08:38:11,789 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:11,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:11,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:11,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:11,813 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:11,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-09 08:38:11,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 08:38:11,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:11,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:11,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:11,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:11,826 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:38:11,826 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:38:11,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:11,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:11,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:11,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:11,888 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:11,898 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 [2021-11-09 08:38:11,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-09 08:38:11,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:11,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:38:11,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:11,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:11,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:11,907 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:38:11,907 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:38:11,910 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:11,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:11,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:11,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:11,930 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:11,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-09 08:38:11,932 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 [2021-11-09 08:38:11,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:11,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:38:11,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:11,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:11,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:11,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:38:11,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:38:11,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:11,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:11,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:11,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:11,980 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:11,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-09 08:38:11,994 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 [2021-11-09 08:38:12,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:12,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:38:12,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:12,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:12,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:12,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:38:12,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:38:12,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:12,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:12,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:12,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:12,038 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:12,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-09 08:38:12,042 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 [2021-11-09 08:38:12,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:12,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:38:12,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:12,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:12,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:12,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:38:12,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:38:12,071 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:12,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:12,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:12,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:12,099 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:12,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-09 08:38:12,100 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 [2021-11-09 08:38:12,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:12,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:12,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:12,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:12,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:38:12,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:38:12,142 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:12,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:12,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:12,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:12,165 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:12,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-09 08:38:12,167 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 [2021-11-09 08:38:12,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:12,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:38:12,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:12,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:12,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:12,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:38:12,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:38:12,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:12,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-11-09 08:38:12,202 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:12,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:12,203 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:12,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-09 08:38:12,204 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 [2021-11-09 08:38:12,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:12,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:12,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:12,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:12,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:38:12,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:38:12,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:12,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:12,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:12,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:12,274 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:12,285 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 [2021-11-09 08:38:12,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:12,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:12,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:12,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:12,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-09 08:38:12,309 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:38:12,310 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:38:12,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:12,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:12,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:12,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:12,346 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:12,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-09 08:38:12,348 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 [2021-11-09 08:38:12,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:12,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:12,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:12,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:12,357 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:38:12,357 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:38:12,398 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:12,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:12,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:12,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:12,430 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:12,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-09 08:38:12,431 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 [2021-11-09 08:38:12,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:12,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:38:12,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:12,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:12,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:12,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:38:12,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:38:12,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:12,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:12,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:12,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:12,481 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:12,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-09 08:38:12,483 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 [2021-11-09 08:38:12,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:12,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:12,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:12,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:12,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:38:12,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:38:12,527 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:12,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:12,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:12,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:12,561 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:12,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-09 08:38:12,571 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 [2021-11-09 08:38:12,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:12,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:12,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:12,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:12,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:38:12,586 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:38:12,601 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 08:38:12,629 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-11-09 08:38:12,629 INFO L444 ModelExtractionUtils]: 1 out of 16 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-11-09 08:38:12,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:12,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:12,632 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:12,655 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 08:38:12,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-09 08:38:12,686 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-09 08:38:12,687 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 08:38:12,687 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#in~0.base)_1) = -2*ULTIMATE.start_main_~i~0 + 21*v_rep(select #length ULTIMATE.start_main_~#in~0.base)_1 Supporting invariants [] [2021-11-09 08:38:12,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:12,761 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-11-09 08:38:12,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:12,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 08:38:12,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:12,842 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 08:38:12,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:12,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:12,912 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 [2021-11-09 08:38:12,914 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-09 08:38:12,966 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 25 states and 35 transitions. Complement of second has 8 states. [2021-11-09 08:38:12,966 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 [2021-11-09 08:38:12,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-09 08:38:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-11-09 08:38:12,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-09 08:38:12,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 08:38:12,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-09 08:38:12,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 08:38:12,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-09 08:38:12,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 08:38:12,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 35 transitions. [2021-11-09 08:38:12,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:12,982 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 7 states and 9 transitions. [2021-11-09 08:38:12,983 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-11-09 08:38:12,983 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-11-09 08:38:12,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2021-11-09 08:38:12,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:38:12,984 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-11-09 08:38:12,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2021-11-09 08:38:13,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-11-09 08:38:13,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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) [2021-11-09 08:38:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-11-09 08:38:13,008 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-11-09 08:38:13,009 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-11-09 08:38:13,009 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 08:38:13,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-11-09 08:38:13,010 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:13,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:13,010 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:13,010 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-09 08:38:13,010 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 08:38:13,011 INFO L791 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 127#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 122#L21-3 assume !(main_~i~0 < 11); 123#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 128#L28-2 [2021-11-09 08:38:13,012 INFO L793 eck$LassoCheckResult]: Loop: 128#L28-2 assume !!(48 <= main_~c~0 % 256 && main_~c~0 % 256 <= 57);main_~j~0 := main_~c~0 % 256 - 48;main_~i~0 := (if (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 else (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 - 4294967296);main_#t~post10 := main_~idx_in~0;main_~idx_in~0 := 1 + main_#t~post10;havoc main_#t~post10;call main_#t~mem11 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem11;havoc main_#t~mem11; 128#L28-2 [2021-11-09 08:38:13,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:13,013 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-11-09 08:38:13,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:13,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769110112] [2021-11-09 08:38:13,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:13,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:13,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:38:13,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769110112] [2021-11-09 08:38:13,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769110112] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:38:13,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:38:13,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:38:13,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983622868] [2021-11-09 08:38:13,121 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:38:13,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:13,122 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2021-11-09 08:38:13,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:13,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040133463] [2021-11-09 08:38:13,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:13,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:13,152 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:13,165 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:13,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:38:13,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:38:13,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:38:13,382 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-09 08:38:13,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:38:13,408 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-11-09 08:38:13,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:38:13,409 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-11-09 08:38:13,410 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:13,410 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2021-11-09 08:38:13,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-09 08:38:13,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-09 08:38:13,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-11-09 08:38:13,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:38:13,411 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-11-09 08:38:13,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-11-09 08:38:13,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2021-11-09 08:38:13,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:38:13,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-11-09 08:38:13,413 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-11-09 08:38:13,413 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-11-09 08:38:13,413 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 08:38:13,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2021-11-09 08:38:13,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:13,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:13,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:13,414 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:38:13,414 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 08:38:13,415 INFO L791 eck$LassoCheckResult]: Stem: 148#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 149#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 144#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 145#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 146#L21-3 assume !(main_~i~0 < 11); 147#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 150#L28-2 [2021-11-09 08:38:13,415 INFO L793 eck$LassoCheckResult]: Loop: 150#L28-2 assume !!(48 <= main_~c~0 % 256 && main_~c~0 % 256 <= 57);main_~j~0 := main_~c~0 % 256 - 48;main_~i~0 := (if (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 else (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 - 4294967296);main_#t~post10 := main_~idx_in~0;main_~idx_in~0 := 1 + main_#t~post10;havoc main_#t~post10;call main_#t~mem11 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem11;havoc main_#t~mem11; 150#L28-2 [2021-11-09 08:38:13,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:13,415 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2021-11-09 08:38:13,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:13,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38163748] [2021-11-09 08:38:13,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:13,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:13,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:13,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:38:13,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38163748] [2021-11-09 08:38:13,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38163748] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:13,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719458719] [2021-11-09 08:38:13,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:13,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:38:13,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:13,450 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:38:13,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-09 08:38:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:13,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 08:38:13,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:13,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:13,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719458719] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:13,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:38:13,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-11-09 08:38:13,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317773913] [2021-11-09 08:38:13,528 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:38:13,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:13,529 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2021-11-09 08:38:13,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:13,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918467025] [2021-11-09 08:38:13,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:13,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:13,539 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:13,549 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:13,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:13,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:38:13,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:38:13,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:38:13,701 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:38:13,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:38:13,722 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2021-11-09 08:38:13,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:38:13,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2021-11-09 08:38:13,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:13,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 12 transitions. [2021-11-09 08:38:13,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-09 08:38:13,724 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-09 08:38:13,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 12 transitions. [2021-11-09 08:38:13,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:38:13,725 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-11-09 08:38:13,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 12 transitions. [2021-11-09 08:38:13,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2021-11-09 08:38:13,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 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) [2021-11-09 08:38:13,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-11-09 08:38:13,726 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-11-09 08:38:13,727 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-11-09 08:38:13,727 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-09 08:38:13,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2021-11-09 08:38:13,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:13,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:13,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:13,728 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-11-09 08:38:13,728 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 08:38:13,728 INFO L791 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 190#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 185#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 186#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 187#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 188#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 193#L21-3 assume !(main_~i~0 < 11); 191#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 192#L28-2 [2021-11-09 08:38:13,728 INFO L793 eck$LassoCheckResult]: Loop: 192#L28-2 assume !!(48 <= main_~c~0 % 256 && main_~c~0 % 256 <= 57);main_~j~0 := main_~c~0 % 256 - 48;main_~i~0 := (if (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 else (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 - 4294967296);main_#t~post10 := main_~idx_in~0;main_~idx_in~0 := 1 + main_#t~post10;havoc main_#t~post10;call main_#t~mem11 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem11;havoc main_#t~mem11; 192#L28-2 [2021-11-09 08:38:13,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:13,728 INFO L85 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2021-11-09 08:38:13,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:13,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176326886] [2021-11-09 08:38:13,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:13,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:13,768 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:13,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:38:13,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176326886] [2021-11-09 08:38:13,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176326886] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:13,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885938740] [2021-11-09 08:38:13,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:38:13,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:38:13,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:13,770 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:38:13,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-09 08:38:13,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:38:13,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:38:13,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 08:38:13,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:13,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885938740] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:13,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:38:13,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-09 08:38:13,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938140167] [2021-11-09 08:38:13,856 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:38:13,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:13,856 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 3 times [2021-11-09 08:38:13,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:13,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457117603] [2021-11-09 08:38:13,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:13,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:13,864 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:13,874 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:13,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:38:13,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:38:13,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:38:13,986 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2021-11-09 08:38:14,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:38:14,008 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-11-09 08:38:14,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:38:14,009 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2021-11-09 08:38:14,010 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:14,010 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 14 transitions. [2021-11-09 08:38:14,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-09 08:38:14,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-09 08:38:14,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2021-11-09 08:38:14,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:38:14,011 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-11-09 08:38:14,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2021-11-09 08:38:14,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-11-09 08:38:14,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-11-09 08:38:14,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-11-09 08:38:14,012 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-11-09 08:38:14,012 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-11-09 08:38:14,012 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-09 08:38:14,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2021-11-09 08:38:14,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:14,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:14,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:14,014 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1] [2021-11-09 08:38:14,014 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 08:38:14,014 INFO L791 eck$LassoCheckResult]: Stem: 241#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 242#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 237#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 238#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 239#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 240#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 243#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 247#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 246#L21-3 assume !(main_~i~0 < 11); 244#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 245#L28-2 [2021-11-09 08:38:14,014 INFO L793 eck$LassoCheckResult]: Loop: 245#L28-2 assume !!(48 <= main_~c~0 % 256 && main_~c~0 % 256 <= 57);main_~j~0 := main_~c~0 % 256 - 48;main_~i~0 := (if (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 else (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 - 4294967296);main_#t~post10 := main_~idx_in~0;main_~idx_in~0 := 1 + main_#t~post10;havoc main_#t~post10;call main_#t~mem11 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem11;havoc main_#t~mem11; 245#L28-2 [2021-11-09 08:38:14,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:14,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1489134225, now seen corresponding path program 3 times [2021-11-09 08:38:14,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:14,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914949646] [2021-11-09 08:38:14,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:14,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:14,058 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:14,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:38:14,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914949646] [2021-11-09 08:38:14,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914949646] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:14,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074416919] [2021-11-09 08:38:14,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:38:14,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:38:14,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:14,061 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:38:14,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-09 08:38:14,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-09 08:38:14,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:38:14,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 08:38:14,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:14,161 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:14,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074416919] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:14,162 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:38:14,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-11-09 08:38:14,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008132054] [2021-11-09 08:38:14,162 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:38:14,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:14,163 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 4 times [2021-11-09 08:38:14,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:14,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648252478] [2021-11-09 08:38:14,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:14,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:14,170 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:14,178 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:14,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:38:14,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:38:14,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:38:14,301 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-11-09 08:38:14,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:38:14,329 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-11-09 08:38:14,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:38:14,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2021-11-09 08:38:14,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:14,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2021-11-09 08:38:14,331 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-09 08:38:14,331 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-09 08:38:14,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2021-11-09 08:38:14,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:38:14,332 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-09 08:38:14,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2021-11-09 08:38:14,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-11-09 08:38:14,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:38:14,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-11-09 08:38:14,333 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-11-09 08:38:14,333 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-11-09 08:38:14,333 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-09 08:38:14,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 14 transitions. [2021-11-09 08:38:14,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:14,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:14,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:14,335 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2021-11-09 08:38:14,335 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 08:38:14,335 INFO L791 eck$LassoCheckResult]: Stem: 304#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 305#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 300#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 301#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 302#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 303#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 306#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 312#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 311#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 310#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 309#L21-3 assume !(main_~i~0 < 11); 307#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 308#L28-2 [2021-11-09 08:38:14,335 INFO L793 eck$LassoCheckResult]: Loop: 308#L28-2 assume !!(48 <= main_~c~0 % 256 && main_~c~0 % 256 <= 57);main_~j~0 := main_~c~0 % 256 - 48;main_~i~0 := (if (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 else (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 - 4294967296);main_#t~post10 := main_~idx_in~0;main_~idx_in~0 := 1 + main_#t~post10;havoc main_#t~post10;call main_#t~mem11 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem11;havoc main_#t~mem11; 308#L28-2 [2021-11-09 08:38:14,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:14,335 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 4 times [2021-11-09 08:38:14,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:14,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151571748] [2021-11-09 08:38:14,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:14,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:14,414 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:14,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:38:14,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151571748] [2021-11-09 08:38:14,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151571748] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:14,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221698991] [2021-11-09 08:38:14,421 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:38:14,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:38:14,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:14,427 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:38:14,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-09 08:38:14,485 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:38:14,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:38:14,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 08:38:14,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:14,530 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:14,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221698991] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:14,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:38:14,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-11-09 08:38:14,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879947823] [2021-11-09 08:38:14,531 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:38:14,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:14,531 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 5 times [2021-11-09 08:38:14,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:14,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007391223] [2021-11-09 08:38:14,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:14,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:14,539 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:14,546 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:14,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:38:14,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 08:38:14,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:38:14,685 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. cyclomatic complexity: 3 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-11-09 08:38:14,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:38:14,718 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-11-09 08:38:14,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:38:14,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 18 transitions. [2021-11-09 08:38:14,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:14,720 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 18 transitions. [2021-11-09 08:38:14,720 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-09 08:38:14,720 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-09 08:38:14,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 18 transitions. [2021-11-09 08:38:14,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:38:14,721 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-11-09 08:38:14,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 18 transitions. [2021-11-09 08:38:14,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-11-09 08:38:14,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:38:14,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-11-09 08:38:14,723 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-09 08:38:14,723 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-09 08:38:14,723 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-09 08:38:14,723 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2021-11-09 08:38:14,723 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:14,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:14,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:14,724 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2021-11-09 08:38:14,724 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 08:38:14,724 INFO L791 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 379#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 374#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 375#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 376#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 377#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 380#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 388#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 387#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 386#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 385#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 384#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 383#L21-3 assume !(main_~i~0 < 11); 381#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 382#L28-2 [2021-11-09 08:38:14,724 INFO L793 eck$LassoCheckResult]: Loop: 382#L28-2 assume !!(48 <= main_~c~0 % 256 && main_~c~0 % 256 <= 57);main_~j~0 := main_~c~0 % 256 - 48;main_~i~0 := (if (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 else (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 - 4294967296);main_#t~post10 := main_~idx_in~0;main_~idx_in~0 := 1 + main_#t~post10;havoc main_#t~post10;call main_#t~mem11 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem11;havoc main_#t~mem11; 382#L28-2 [2021-11-09 08:38:14,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:14,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 5 times [2021-11-09 08:38:14,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:14,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560607234] [2021-11-09 08:38:14,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:14,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:14,789 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:14,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:38:14,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560607234] [2021-11-09 08:38:14,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560607234] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:14,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510777399] [2021-11-09 08:38:14,790 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:38:14,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:38:14,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:14,792 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:38:14,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-09 08:38:14,869 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-09 08:38:14,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:38:14,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-09 08:38:14,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:14,927 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:14,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510777399] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:14,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:38:14,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-11-09 08:38:14,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14847140] [2021-11-09 08:38:14,929 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:38:14,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:14,930 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 6 times [2021-11-09 08:38:14,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:14,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346851825] [2021-11-09 08:38:14,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:14,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:14,948 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:14,963 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:15,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:38:15,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 08:38:15,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:38:15,070 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 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) [2021-11-09 08:38:15,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:38:15,107 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-11-09 08:38:15,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 08:38:15,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 20 transitions. [2021-11-09 08:38:15,108 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:15,108 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 20 transitions. [2021-11-09 08:38:15,108 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-09 08:38:15,109 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-09 08:38:15,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 20 transitions. [2021-11-09 08:38:15,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:38:15,109 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-11-09 08:38:15,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 20 transitions. [2021-11-09 08:38:15,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2021-11-09 08:38:15,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 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) [2021-11-09 08:38:15,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-11-09 08:38:15,111 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-11-09 08:38:15,111 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-11-09 08:38:15,111 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-09 08:38:15,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 18 transitions. [2021-11-09 08:38:15,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:15,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:15,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:15,112 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 1, 1, 1, 1] [2021-11-09 08:38:15,112 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 08:38:15,113 INFO L791 eck$LassoCheckResult]: Stem: 463#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 464#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 459#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 460#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 461#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 462#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 465#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 475#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 474#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 473#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 472#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 471#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 470#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 469#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 468#L21-3 assume !(main_~i~0 < 11); 466#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 467#L28-2 [2021-11-09 08:38:15,113 INFO L793 eck$LassoCheckResult]: Loop: 467#L28-2 assume !!(48 <= main_~c~0 % 256 && main_~c~0 % 256 <= 57);main_~j~0 := main_~c~0 % 256 - 48;main_~i~0 := (if (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 else (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 - 4294967296);main_#t~post10 := main_~idx_in~0;main_~idx_in~0 := 1 + main_#t~post10;havoc main_#t~post10;call main_#t~mem11 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem11;havoc main_#t~mem11; 467#L28-2 [2021-11-09 08:38:15,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:15,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1715480727, now seen corresponding path program 6 times [2021-11-09 08:38:15,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:15,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719577069] [2021-11-09 08:38:15,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:15,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:15,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:38:15,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719577069] [2021-11-09 08:38:15,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719577069] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:15,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274706831] [2021-11-09 08:38:15,175 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:38:15,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:38:15,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:15,177 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:38:15,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-09 08:38:15,281 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-11-09 08:38:15,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:38:15,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 08:38:15,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:15,335 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:15,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274706831] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:15,335 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:38:15,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-11-09 08:38:15,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512445612] [2021-11-09 08:38:15,336 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:38:15,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:15,336 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 7 times [2021-11-09 08:38:15,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:15,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369847011] [2021-11-09 08:38:15,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:15,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:15,357 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:15,362 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:15,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:38:15,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:38:15,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:38:15,490 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. cyclomatic complexity: 3 Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 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) [2021-11-09 08:38:15,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:38:15,523 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-11-09 08:38:15,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 08:38:15,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 22 transitions. [2021-11-09 08:38:15,524 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:15,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 22 transitions. [2021-11-09 08:38:15,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-09 08:38:15,525 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-09 08:38:15,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 22 transitions. [2021-11-09 08:38:15,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:38:15,525 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-11-09 08:38:15,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 22 transitions. [2021-11-09 08:38:15,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-11-09 08:38:15,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:38:15,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-11-09 08:38:15,527 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-11-09 08:38:15,527 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-11-09 08:38:15,528 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-09 08:38:15,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 20 transitions. [2021-11-09 08:38:15,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:15,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:15,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:15,529 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [7, 7, 1, 1, 1, 1] [2021-11-09 08:38:15,529 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 08:38:15,529 INFO L791 eck$LassoCheckResult]: Stem: 559#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 560#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 555#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 556#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 557#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 558#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 561#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 573#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 572#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 571#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 570#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 569#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 568#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 567#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 566#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 565#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 564#L21-3 assume !(main_~i~0 < 11); 562#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 563#L28-2 [2021-11-09 08:38:15,529 INFO L793 eck$LassoCheckResult]: Loop: 563#L28-2 assume !!(48 <= main_~c~0 % 256 && main_~c~0 % 256 <= 57);main_~j~0 := main_~c~0 % 256 - 48;main_~i~0 := (if (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 else (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 - 4294967296);main_#t~post10 := main_~idx_in~0;main_~idx_in~0 := 1 + main_#t~post10;havoc main_#t~post10;call main_#t~mem11 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem11;havoc main_#t~mem11; 563#L28-2 [2021-11-09 08:38:15,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:15,530 INFO L85 PathProgramCache]: Analyzing trace with hash -690407015, now seen corresponding path program 7 times [2021-11-09 08:38:15,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:15,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65888267] [2021-11-09 08:38:15,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:15,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:15,626 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:15,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:38:15,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65888267] [2021-11-09 08:38:15,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65888267] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:15,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242021705] [2021-11-09 08:38:15,627 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:38:15,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:38:15,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:15,629 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:38:15,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-09 08:38:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:15,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 08:38:15,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:15,786 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:15,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242021705] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:15,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:38:15,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-11-09 08:38:15,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596854099] [2021-11-09 08:38:15,790 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:38:15,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:15,790 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 8 times [2021-11-09 08:38:15,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:15,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902639033] [2021-11-09 08:38:15,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:15,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:15,798 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:15,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:15,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:38:15,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-09 08:38:15,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-09 08:38:15,920 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. cyclomatic complexity: 3 Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 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) [2021-11-09 08:38:15,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:38:15,965 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-11-09 08:38:15,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:38:15,966 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 24 transitions. [2021-11-09 08:38:15,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:15,967 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 24 transitions. [2021-11-09 08:38:15,967 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-09 08:38:15,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-09 08:38:15,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 24 transitions. [2021-11-09 08:38:15,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:38:15,967 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-11-09 08:38:15,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 24 transitions. [2021-11-09 08:38:15,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-11-09 08:38:15,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 20 states have internal predecessors, (22), 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) [2021-11-09 08:38:15,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-11-09 08:38:15,969 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-11-09 08:38:15,969 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-11-09 08:38:15,970 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-09 08:38:15,970 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 22 transitions. [2021-11-09 08:38:15,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:15,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:15,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:15,971 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 1, 1, 1, 1] [2021-11-09 08:38:15,971 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 08:38:15,971 INFO L791 eck$LassoCheckResult]: Stem: 666#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 667#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 662#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 663#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 664#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 665#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 668#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 682#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 681#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 680#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 679#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 678#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 677#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 676#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 675#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 674#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 673#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 672#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 671#L21-3 assume !(main_~i~0 < 11); 669#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 670#L28-2 [2021-11-09 08:38:15,971 INFO L793 eck$LassoCheckResult]: Loop: 670#L28-2 assume !!(48 <= main_~c~0 % 256 && main_~c~0 % 256 <= 57);main_~j~0 := main_~c~0 % 256 - 48;main_~i~0 := (if (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 else (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 - 4294967296);main_#t~post10 := main_~idx_in~0;main_~idx_in~0 := 1 + main_#t~post10;havoc main_#t~post10;call main_#t~mem11 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem11;havoc main_#t~mem11; 670#L28-2 [2021-11-09 08:38:15,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:15,972 INFO L85 PathProgramCache]: Analyzing trace with hash -2056121829, now seen corresponding path program 8 times [2021-11-09 08:38:15,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:15,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595754049] [2021-11-09 08:38:15,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:15,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:16,071 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:16,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:38:16,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595754049] [2021-11-09 08:38:16,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595754049] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:16,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561225117] [2021-11-09 08:38:16,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:38:16,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:38:16,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:16,079 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:38:16,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-09 08:38:16,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:38:16,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:38:16,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-09 08:38:16,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:16,247 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:16,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561225117] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:16,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:38:16,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-11-09 08:38:16,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419223735] [2021-11-09 08:38:16,248 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:38:16,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:16,249 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 9 times [2021-11-09 08:38:16,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:16,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951574791] [2021-11-09 08:38:16,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:16,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:16,256 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:16,263 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:16,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:38:16,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-09 08:38:16,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-09 08:38:16,363 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. cyclomatic complexity: 3 Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 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) [2021-11-09 08:38:16,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:38:16,401 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-11-09 08:38:16,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 08:38:16,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 26 transitions. [2021-11-09 08:38:16,402 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:16,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 26 transitions. [2021-11-09 08:38:16,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-09 08:38:16,403 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-09 08:38:16,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 26 transitions. [2021-11-09 08:38:16,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:38:16,403 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-11-09 08:38:16,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 26 transitions. [2021-11-09 08:38:16,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-11-09 08:38:16,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 states have internal predecessors, (24), 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) [2021-11-09 08:38:16,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-11-09 08:38:16,405 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-11-09 08:38:16,405 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-11-09 08:38:16,405 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-11-09 08:38:16,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 24 transitions. [2021-11-09 08:38:16,406 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:16,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:16,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:16,406 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [9, 9, 1, 1, 1, 1] [2021-11-09 08:38:16,407 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 08:38:16,407 INFO L791 eck$LassoCheckResult]: Stem: 784#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 785#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 780#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 781#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 782#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 783#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 786#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 802#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 801#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 800#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 799#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 798#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 797#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 796#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 795#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 794#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 793#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 792#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 791#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 790#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 789#L21-3 assume !(main_~i~0 < 11); 787#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 788#L28-2 [2021-11-09 08:38:16,407 INFO L793 eck$LassoCheckResult]: Loop: 788#L28-2 assume !!(48 <= main_~c~0 % 256 && main_~c~0 % 256 <= 57);main_~j~0 := main_~c~0 % 256 - 48;main_~i~0 := (if (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 else (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 - 4294967296);main_#t~post10 := main_~idx_in~0;main_~idx_in~0 := 1 + main_#t~post10;havoc main_#t~post10;call main_#t~mem11 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem11;havoc main_#t~mem11; 788#L28-2 [2021-11-09 08:38:16,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:16,407 INFO L85 PathProgramCache]: Analyzing trace with hash -248065507, now seen corresponding path program 9 times [2021-11-09 08:38:16,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:16,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931398272] [2021-11-09 08:38:16,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:16,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:16,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:38:16,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931398272] [2021-11-09 08:38:16,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931398272] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:16,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60501138] [2021-11-09 08:38:16,513 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:38:16,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:38:16,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:16,523 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:38:16,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-09 08:38:16,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-11-09 08:38:16,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:38:16,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-09 08:38:16,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:16,770 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:16,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60501138] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:16,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:38:16,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-11-09 08:38:16,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472458709] [2021-11-09 08:38:16,774 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:38:16,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:16,774 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 10 times [2021-11-09 08:38:16,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:16,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988720315] [2021-11-09 08:38:16,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:16,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:16,782 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:16,793 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:16,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:38:16,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-09 08:38:16,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-09 08:38:16,908 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. cyclomatic complexity: 3 Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 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) [2021-11-09 08:38:16,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:38:16,962 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2021-11-09 08:38:16,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 08:38:16,963 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2021-11-09 08:38:16,964 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:16,964 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 29 transitions. [2021-11-09 08:38:16,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-11-09 08:38:16,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-11-09 08:38:16,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 29 transitions. [2021-11-09 08:38:16,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:38:16,965 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 29 transitions. [2021-11-09 08:38:16,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 29 transitions. [2021-11-09 08:38:16,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2021-11-09 08:38:16,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 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) [2021-11-09 08:38:16,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-11-09 08:38:16,968 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-11-09 08:38:16,968 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-11-09 08:38:16,968 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-11-09 08:38:16,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 26 transitions. [2021-11-09 08:38:16,969 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:16,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:16,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:16,970 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1] [2021-11-09 08:38:16,970 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 08:38:16,970 INFO L791 eck$LassoCheckResult]: Stem: 914#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 915#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 910#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 911#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 912#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 913#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 934#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 933#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 932#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 931#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 930#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 929#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 928#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 927#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 926#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 925#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 924#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 923#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 922#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 921#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 920#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 919#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 918#L21-3 assume !(main_~i~0 < 11); 916#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 917#L28-2 [2021-11-09 08:38:16,971 INFO L793 eck$LassoCheckResult]: Loop: 917#L28-2 assume !!(48 <= main_~c~0 % 256 && main_~c~0 % 256 <= 57);main_~j~0 := main_~c~0 % 256 - 48;main_~i~0 := (if (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 else (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 - 4294967296);main_#t~post10 := main_~idx_in~0;main_~idx_in~0 := 1 + main_#t~post10;havoc main_#t~post10;call main_#t~mem11 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem11;havoc main_#t~mem11; 917#L28-2 [2021-11-09 08:38:16,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:16,971 INFO L85 PathProgramCache]: Analyzing trace with hash 2127272351, now seen corresponding path program 10 times [2021-11-09 08:38:16,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:16,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125106768] [2021-11-09 08:38:16,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:16,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:17,076 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:17,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:38:17,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125106768] [2021-11-09 08:38:17,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125106768] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:17,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288007341] [2021-11-09 08:38:17,077 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:38:17,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:38:17,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:17,082 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:38:17,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-09 08:38:17,186 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:38:17,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:38:17,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-09 08:38:17,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:17,275 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:17,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288007341] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:38:17,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:38:17,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-11-09 08:38:17,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002016809] [2021-11-09 08:38:17,276 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:38:17,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:17,276 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 11 times [2021-11-09 08:38:17,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:17,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497252946] [2021-11-09 08:38:17,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:17,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:17,282 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:17,287 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:17,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:38:17,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-09 08:38:17,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-09 08:38:17,402 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. cyclomatic complexity: 3 Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 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) [2021-11-09 08:38:17,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:38:17,451 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2021-11-09 08:38:17,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 08:38:17,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 30 transitions. [2021-11-09 08:38:17,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:17,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 30 transitions. [2021-11-09 08:38:17,452 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-11-09 08:38:17,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-11-09 08:38:17,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 30 transitions. [2021-11-09 08:38:17,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:38:17,453 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-11-09 08:38:17,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 30 transitions. [2021-11-09 08:38:17,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-11-09 08:38:17,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.037037037037037) internal successors, (28), 26 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) [2021-11-09 08:38:17,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-11-09 08:38:17,455 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-11-09 08:38:17,455 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-11-09 08:38:17,455 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-11-09 08:38:17,456 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 28 transitions. [2021-11-09 08:38:17,456 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-09 08:38:17,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:38:17,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:38:17,457 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 11, 1, 1, 1, 1] [2021-11-09 08:38:17,457 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-09 08:38:17,457 INFO L791 eck$LassoCheckResult]: Stem: 1054#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1055#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 1050#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 1051#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 1052#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 1053#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 1076#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 1075#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 1074#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 1073#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 1072#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 1071#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 1070#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 1069#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 1068#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 1067#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 1066#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 1065#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 1064#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 1063#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 1062#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 1061#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 1060#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 1059#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 1058#L21-3 assume !(main_~i~0 < 11); 1056#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 1057#L28-2 [2021-11-09 08:38:17,457 INFO L793 eck$LassoCheckResult]: Loop: 1057#L28-2 assume !!(48 <= main_~c~0 % 256 && main_~c~0 % 256 <= 57);main_~j~0 := main_~c~0 % 256 - 48;main_~i~0 := (if (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 else (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 - 4294967296);main_#t~post10 := main_~idx_in~0;main_~idx_in~0 := 1 + main_#t~post10;havoc main_#t~post10;call main_#t~mem11 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem11;havoc main_#t~mem11; 1057#L28-2 [2021-11-09 08:38:17,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:17,458 INFO L85 PathProgramCache]: Analyzing trace with hash -95647583, now seen corresponding path program 11 times [2021-11-09 08:38:17,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:17,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650023025] [2021-11-09 08:38:17,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:17,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:17,477 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:17,498 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:17,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:17,499 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 12 times [2021-11-09 08:38:17,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:17,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233849847] [2021-11-09 08:38:17,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:17,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:17,504 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:17,508 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:17,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:17,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1329892248, now seen corresponding path program 1 times [2021-11-09 08:38:17,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:38:17,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144895541] [2021-11-09 08:38:17,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:38:17,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:38:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:17,534 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:38:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:38:17,558 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:38:30,500 WARN L207 SmtUtils]: Spent 12.82 s on a formula simplification. DAG size of input: 259 DAG size of output: 199 [2021-11-09 08:38:32,718 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 08:38:32,718 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 08:38:32,718 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 08:38:32,718 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 08:38:32,718 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 08:38:32,718 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:32,718 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 08:38:32,718 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 08:38:32,718 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_sendmail_tTflag_arr_one_loop.c_Iteration13_Lasso [2021-11-09 08:38:32,718 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 08:38:32,718 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 08:38:32,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:32,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:32,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:33,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:33,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:33,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:33,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:33,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:33,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:33,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:33,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:38:33,796 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 08:38:33,796 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 08:38:33,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:33,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:33,805 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:33,807 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 [2021-11-09 08:38:33,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:33,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:33,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:33,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:33,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:38:33,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:38:33,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-09 08:38:33,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:33,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:33,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:33,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:33,864 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:33,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-09 08:38:33,866 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 [2021-11-09 08:38:33,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:33,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:38:33,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:33,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:33,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:33,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:38:33,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:38:33,884 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:33,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-11-09 08:38:33,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:33,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:33,907 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:33,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-09 08:38:33,908 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 [2021-11-09 08:38:33,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:33,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:33,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:33,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:33,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:38:33,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:38:33,919 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:33,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-11-09 08:38:33,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:33,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:33,939 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:33,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-09 08:38:33,940 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 [2021-11-09 08:38:33,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:33,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:33,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:33,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:33,949 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:38:33,949 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:38:33,963 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:34,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:34,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:34,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:34,001 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:34,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 08:38:34,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-09 08:38:34,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:34,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:34,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:34,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:34,029 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:38:34,029 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:38:34,042 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:38:34,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-11-09 08:38:34,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:34,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:34,063 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:34,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-09 08:38:34,064 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 [2021-11-09 08:38:34,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:38:34,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:38:34,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:38:34,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:38:34,076 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:38:34,076 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:38:34,114 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 08:38:34,147 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-11-09 08:38:34,147 INFO L444 ModelExtractionUtils]: 9 out of 19 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-11-09 08:38:34,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:38:34,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:38:34,163 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:38:34,198 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 08:38:34,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-09 08:38:34,216 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-09 08:38:34,216 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 08:38:34,216 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#in~0.offset, ULTIMATE.start_main_~idx_in~0, v_rep(select #length ULTIMATE.start_main_~#in~0.base)_2) = -1*ULTIMATE.start_main_~#in~0.offset - 1*ULTIMATE.start_main_~idx_in~0 + 1*v_rep(select #length ULTIMATE.start_main_~#in~0.base)_2 Supporting invariants [] [2021-11-09 08:38:34,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:34,309 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-11-09 08:38:34,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:38:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:34,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 08:38:34,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:38:34,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 08:38:34,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:38:34,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:38:34,437 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-09 08:38:34,438 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 28 transitions. cyclomatic complexity: 3 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-11-09 08:38:34,448 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 28 transitions. cyclomatic complexity: 3. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 28 states and 29 transitions. Complement of second has 2 states. [2021-11-09 08:38:34,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-11-09 08:38:34,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-11-09 08:38:34,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2021-11-09 08:38:34,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 26 letters. Loop has 1 letters. [2021-11-09 08:38:34,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 08:38:34,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 27 letters. Loop has 1 letters. [2021-11-09 08:38:34,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 08:38:34,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 26 letters. Loop has 2 letters. [2021-11-09 08:38:34,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 08:38:34,455 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2021-11-09 08:38:34,456 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 08:38:34,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2021-11-09 08:38:34,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-09 08:38:34,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-09 08:38:34,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-09 08:38:34,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:38:34,457 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 08:38:34,457 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 08:38:34,457 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 08:38:34,457 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-11-09 08:38:34,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-09 08:38:34,458 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 08:38:34,458 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-09 08:38:34,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 08:38:34 BoogieIcfgContainer [2021-11-09 08:38:34,463 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 08:38:34,464 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 08:38:34,464 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 08:38:34,464 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 08:38:34,465 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:38:09" (3/4) ... [2021-11-09 08:38:34,468 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 08:38:34,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 08:38:34,470 INFO L168 Benchmark]: Toolchain (without parser) took 25077.10 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 66.6 MB in the beginning and 45.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 71.2 MB. Max. memory is 16.1 GB. [2021-11-09 08:38:34,471 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 82.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:38:34,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.86 ms. Allocated memory is still 107.0 MB. Free memory was 66.4 MB in the beginning and 83.6 MB in the end (delta: -17.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 08:38:34,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.57 ms. Allocated memory is still 107.0 MB. Free memory was 83.6 MB in the beginning and 82.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:38:34,473 INFO L168 Benchmark]: Boogie Preprocessor took 23.59 ms. Allocated memory is still 107.0 MB. Free memory was 82.0 MB in the beginning and 80.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:38:34,473 INFO L168 Benchmark]: RCFGBuilder took 285.61 ms. Allocated memory is still 107.0 MB. Free memory was 80.7 MB in the beginning and 70.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 08:38:34,474 INFO L168 Benchmark]: BuchiAutomizer took 24467.99 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 70.6 MB in the beginning and 45.8 MB in the end (delta: 24.8 MB). Peak memory consumption was 77.9 MB. Max. memory is 16.1 GB. [2021-11-09 08:38:34,474 INFO L168 Benchmark]: Witness Printer took 4.81 ms. Allocated memory is still 157.3 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:38:34,477 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 82.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.86 ms. Allocated memory is still 107.0 MB. Free memory was 66.4 MB in the beginning and 83.6 MB in the end (delta: -17.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.57 ms. Allocated memory is still 107.0 MB. Free memory was 83.6 MB in the beginning and 82.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.59 ms. Allocated memory is still 107.0 MB. Free memory was 82.0 MB in the beginning and 80.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 285.61 ms. Allocated memory is still 107.0 MB. Free memory was 80.7 MB in the beginning and 70.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 24467.99 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 70.6 MB in the beginning and 45.8 MB in the end (delta: 24.8 MB). Peak memory consumption was 77.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.81 ms. Allocated memory is still 157.3 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (11 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 21 * unknown-#length-unknown[in] + -2 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * idx_in + unknown-#length-unknown[in] + -1 * in and consists of 2 locations. 11 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 24.4s and 14 iterations. TraceHistogramMax:11. Analysis of lassos took 23.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 13. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 23 StatesRemovedByMinimization, 11 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 12. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 52 SDtfs, 74 SDslu, 26 SDs, 0 SdLazy, 238 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU11 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital249 mio100 ax100 hnf100 lsp100 ukn49 mio100 lsp41 div141 bol100 ite100 ukn100 eq161 hnf74 smp97 dnf202 smp75 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-09 08:38:34,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:34,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:34,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:35,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:35,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-11-09 08:38:35,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-11-09 08:38:35,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-09 08:38:35,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-11-09 08:38:36,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-11-09 08:38:36,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-11-09 08:38:36,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-11-09 08:38:36,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dcb2c4f-c288-4cb8-b39c-774ab82d1a79/bin/uautomizer-IVEQpCNsaX/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