./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/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_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58eecb02814a6b78cadd872f0ade36a8b32c0833 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:17:52,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:17:52,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:17:52,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:17:52,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:17:52,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:17:52,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:17:52,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:17:52,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:17:52,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:17:52,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:17:52,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:17:52,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:17:52,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:17:52,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:17:52,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:17:52,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:17:52,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:17:52,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:17:52,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:17:52,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:17:52,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:17:52,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:17:52,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:17:52,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:17:52,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:17:52,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:17:52,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:17:52,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:17:52,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:17:52,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:17:52,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:17:52,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:17:52,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:17:52,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:17:52,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:17:52,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:17:52,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:17:52,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:17:52,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:17:52,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:17:52,880 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:17:52,928 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:17:52,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:17:52,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:17:52,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:17:52,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:17:52,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:17:52,931 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:17:52,932 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:17:52,932 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:17:52,932 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:17:52,933 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:17:52,933 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:17:52,934 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:17:52,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:17:52,934 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:17:52,934 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:17:52,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:17:52,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:17:52,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:17:52,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:17:52,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:17:52,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:17:52,936 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:17:52,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:17:52,936 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:17:52,937 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:17:52,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:17:52,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:17:52,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:17:52,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:17:52,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:17:52,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:17:52,941 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:17:52,941 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_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58eecb02814a6b78cadd872f0ade36a8b32c0833 [2021-10-13 01:17:53,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:17:53,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:17:53,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:17:53,268 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:17:53,269 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:17:53,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c [2021-10-13 01:17:53,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/data/06ba271ad/b9036195e590418cb406439961cc9bf8/FLAG0ca8c00ad [2021-10-13 01:17:53,811 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:17:53,811 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c [2021-10-13 01:17:53,822 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/data/06ba271ad/b9036195e590418cb406439961cc9bf8/FLAG0ca8c00ad [2021-10-13 01:17:54,200 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/data/06ba271ad/b9036195e590418cb406439961cc9bf8 [2021-10-13 01:17:54,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:17:54,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:17:54,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:17:54,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:17:54,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:17:54,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:17:54" (1/1) ... [2021-10-13 01:17:54,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d4aa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:54, skipping insertion in model container [2021-10-13 01:17:54,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:17:54" (1/1) ... [2021-10-13 01:17:54,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:17:54,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:17:54,411 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_70b60101-68c9-4e47-a025-7109eba75fac/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c[387,400] [2021-10-13 01:17:54,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:17:54,434 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:17:54,446 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_70b60101-68c9-4e47-a025-7109eba75fac/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c[387,400] [2021-10-13 01:17:54,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:17:54,466 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:17:54,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:54 WrapperNode [2021-10-13 01:17:54,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:17:54,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:17:54,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:17:54,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:17:54,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:54" (1/1) ... [2021-10-13 01:17:54,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:54" (1/1) ... [2021-10-13 01:17:54,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:17:54,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:17:54,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:17:54,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:17:54,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:54" (1/1) ... [2021-10-13 01:17:54,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:54" (1/1) ... [2021-10-13 01:17:54,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:54" (1/1) ... [2021-10-13 01:17:54,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:54" (1/1) ... [2021-10-13 01:17:54,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:54" (1/1) ... [2021-10-13 01:17:54,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:54" (1/1) ... [2021-10-13 01:17:54,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:54" (1/1) ... [2021-10-13 01:17:54,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:17:54,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:17:54,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:17:54,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:17:54,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:54" (1/1) ... [2021-10-13 01:17:54,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:54,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:54,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:54,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:17:54,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:17:54,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:17:54,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 01:17:54,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:17:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:17:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 01:17:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 01:17:54,811 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:17:54,812 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-13 01:17:54,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:17:54 BoogieIcfgContainer [2021-10-13 01:17:54,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:17:54,815 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:17:54,815 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:17:54,818 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:17:54,819 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:17:54,819 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:17:54" (1/3) ... [2021-10-13 01:17:54,820 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39629bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:17:54, skipping insertion in model container [2021-10-13 01:17:54,821 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:17:54,821 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:54" (2/3) ... [2021-10-13 01:17:54,821 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39629bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:17:54, skipping insertion in model container [2021-10-13 01:17:54,821 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:17:54,822 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:17:54" (3/3) ... [2021-10-13 01:17:54,823 INFO L389 chiAutomizerObserver]: Analyzing ICFG verisec_sendmail_tTflag_arr_one_loop.c [2021-10-13 01:17:54,867 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:17:54,867 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:17:54,867 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:17:54,867 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:17:54,867 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:17:54,868 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:17:54,868 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:17:54,868 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:17:54,896 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) [2021-10-13 01:17:54,916 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-10-13 01:17:54,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:54,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:54,923 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 01:17:54,923 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:17:54,924 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:17:54,924 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) [2021-10-13 01:17:54,927 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-10-13 01:17:54,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:54,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:54,928 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 01:17:54,929 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:17:54,936 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 [2021-10-13 01:17:54,937 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 [2021-10-13 01:17:54,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:54,946 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-13 01:17:54,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:54,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398696616] [2021-10-13 01:17:54,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:54,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:55,087 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:55,154 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:55,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:55,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-13 01:17:55,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:55,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833444014] [2021-10-13 01:17:55,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:55,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:55,182 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:55,199 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:55,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:55,210 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-13 01:17:55,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:55,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631746979] [2021-10-13 01:17:55,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:55,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:55,242 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:55,284 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:55,891 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:55,892 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:55,892 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:55,892 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:55,892 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:17:55,893 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:55,893 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:55,893 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:55,893 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_sendmail_tTflag_arr_one_loop.c_Iteration1_Lasso [2021-10-13 01:17:55,893 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:55,894 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:55,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:55,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:55,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:55,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:55,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:55,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:55,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:55,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:55,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:55,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:55,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:55,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:56,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:56,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:56,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:56,386 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:56,390 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:17:56,392 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:56,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:56,394 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:56,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 01:17:56,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:56,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:56,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:56,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:56,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:56,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:56,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:56,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:56,431 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:56,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:56,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:56,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:56,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:56,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 01:17:56,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:56,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:56,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:56,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:56,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:56,486 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:56,486 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:56,510 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:56,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:56,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:56,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:56,538 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:56,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 01:17:56,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:56,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:56,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:56,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:56,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:56,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:56,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:56,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:56,562 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:56,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-13 01:17:56,583 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:56,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:56,584 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:56,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 01:17:56,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:56,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:56,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:56,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:56,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:56,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:56,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:56,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:56,601 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:56,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:56,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:56,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:56,625 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:56,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 01:17:56,649 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:56,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:56,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:56,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:56,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:56,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:56,661 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:56,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:56,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:56,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:56,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:56,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:56,694 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:56,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 01:17:56,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:56,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:56,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:56,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:56,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:56,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:56,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:56,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:56,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:56,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:56,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:56,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:56,752 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:56,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:56,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:56,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:56,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:56,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:56,783 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:56,783 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:56,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 01:17:56,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:56,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:56,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:56,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:56,842 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:56,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 01:17:56,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:56,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:56,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:56,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:56,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:56,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:56,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:56,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:56,874 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:56,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:56,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:56,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:56,914 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:56,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 01:17:56,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:56,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:56,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:56,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:56,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:56,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:56,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:56,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:56,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:56,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-13 01:17:56,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:56,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:56,952 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:56,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 01:17:56,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:56,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:56,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:56,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:56,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:56,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:56,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:56,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:56,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:56,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:56,989 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:56,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:56,990 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:56,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 01:17:56,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:56,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:57,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:57,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:57,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:57,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:57,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:57,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:57,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:57,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:57,028 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:57,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:57,029 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:57,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 01:17:57,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:57,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:57,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:57,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:57,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:57,041 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:57,041 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:57,055 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:57,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:57,074 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:57,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:57,075 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:57,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 01:17:57,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:57,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:57,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:57,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:57,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:57,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:57,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:57,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:57,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:57,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:57,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:57,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:57,118 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:57,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 01:17:57,135 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:57,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:57,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:57,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:57,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:57,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:57,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:57,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:57,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:57,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:57,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:57,197 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:57,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:57,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 01:17:57,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:57,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:57,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:57,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:57,217 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:57,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:57,233 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:57,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:57,254 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:57,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:57,254 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:57,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:57,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 01:17:57,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:57,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:57,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:57,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:57,270 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:57,270 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:57,298 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:57,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:57,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:57,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:57,326 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:57,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 01:17:57,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:57,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:57,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:57,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:57,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:57,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:57,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:57,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:57,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:57,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:57,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:57,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:57,378 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:57,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 01:17:57,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:57,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:57,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:57,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:57,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:57,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:57,392 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:57,407 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:57,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:57,446 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:57,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:57,454 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:57,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:57,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:57,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:57,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:57,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:57,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:57,478 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:57,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 01:17:57,506 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:17:57,537 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-10-13 01:17:57,537 INFO L444 ModelExtractionUtils]: 1 out of 16 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-10-13 01:17:57,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:57,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:57,544 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:57,563 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:17:57,581 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 01:17:57,581 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:17:57,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 01:17:57,582 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#in~0.base)_1, ULTIMATE.start_main_~i~0) = 21*v_rep(select #length ULTIMATE.start_main_~#in~0.base)_1 - 2*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-13 01:17:57,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:57,657 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-10-13 01:17:57,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:57,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:17:57,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:57,729 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:17:57,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:57,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:17:57,779 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 [2021-10-13 01:17:57,780 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) [2021-10-13 01:17:57,831 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. [2021-10-13 01:17:57,831 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 [2021-10-13 01:17:57,833 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) [2021-10-13 01:17:57,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-10-13 01:17:57,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-13 01:17:57,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:57,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 01:17:57,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:57,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-13 01:17:57,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:57,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 35 transitions. [2021-10-13 01:17:57,843 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:17:57,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 7 states and 9 transitions. [2021-10-13 01:17:57,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-13 01:17:57,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-13 01:17:57,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2021-10-13 01:17:57,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:17:57,849 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-13 01:17:57,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2021-10-13 01:17:57,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-13 01:17:57,872 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) [2021-10-13 01:17:57,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-13 01:17:57,875 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-13 01:17:57,875 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-13 01:17:57,875 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:17:57,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-13 01:17:57,876 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:17:57,876 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:57,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:57,877 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 01:17:57,877 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:17:57,877 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 [2021-10-13 01:17:57,882 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 [2021-10-13 01:17:57,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:57,884 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-10-13 01:17:57,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:57,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714786506] [2021-10-13 01:17:57,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:57,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:57,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:17:57,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:17:57,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714786506] [2021-10-13 01:17:57,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714786506] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:17:57,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:17:57,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:17:57,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453561814] [2021-10-13 01:17:57,951 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:17:57,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:57,951 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2021-10-13 01:17:57,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:57,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342031332] [2021-10-13 01:17:57,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:57,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:57,968 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:57,980 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:58,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:17:58,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:17:58,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:17:58,173 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) [2021-10-13 01:17:58,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:17:58,188 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-10-13 01:17:58,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:17:58,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-10-13 01:17:58,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:17:58,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2021-10-13 01:17:58,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 01:17:58,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-13 01:17:58,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-10-13 01:17:58,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:17:58,193 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-13 01:17:58,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-10-13 01:17:58,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2021-10-13 01:17:58,195 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) [2021-10-13 01:17:58,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-10-13 01:17:58,196 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-10-13 01:17:58,196 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-10-13 01:17:58,196 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:17:58,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2021-10-13 01:17:58,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:17:58,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:58,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:58,199 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:17:58,199 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:17:58,199 INFO L791 eck$LassoCheckResult]: Stem: 148#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 149#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 144#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 145#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 146#L21-3 assume !(main_~i~0 < 11); 147#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 150#L28-2 [2021-10-13 01:17:58,199 INFO L793 eck$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 [2021-10-13 01:17:58,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:58,201 INFO L82 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2021-10-13 01:17:58,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:58,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350942297] [2021-10-13 01:17:58,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:58,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:58,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:17:58,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:17:58,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350942297] [2021-10-13 01:17:58,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350942297] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:17:58,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602675403] [2021-10-13 01:17:58,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:58,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:17:58,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:58,271 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:17:58,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-13 01:17:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:58,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 01:17:58,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:58,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:17:58,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602675403] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:17:58,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:17:58,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-13 01:17:58,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100111334] [2021-10-13 01:17:58,348 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:17:58,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:58,349 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2021-10-13 01:17:58,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:58,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336876306] [2021-10-13 01:17:58,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:58,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:58,374 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:58,400 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:58,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:58,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:17:58,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:17:58,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:17:58,567 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) [2021-10-13 01:17:58,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:17:58,589 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2021-10-13 01:17:58,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:17:58,589 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2021-10-13 01:17:58,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:17:58,590 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 12 transitions. [2021-10-13 01:17:58,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 01:17:58,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-13 01:17:58,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 12 transitions. [2021-10-13 01:17:58,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:17:58,591 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-13 01:17:58,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 12 transitions. [2021-10-13 01:17:58,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2021-10-13 01:17:58,592 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) [2021-10-13 01:17:58,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-10-13 01:17:58,592 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-13 01:17:58,593 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-13 01:17:58,593 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 01:17:58,593 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2021-10-13 01:17:58,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:17:58,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:58,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:58,594 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-13 01:17:58,594 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:17:58,594 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 [2021-10-13 01:17:58,594 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 [2021-10-13 01:17:58,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:58,594 INFO L82 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2021-10-13 01:17:58,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:58,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343043104] [2021-10-13 01:17:58,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:58,595 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:58,633 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:17:58,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:17:58,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343043104] [2021-10-13 01:17:58,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343043104] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:17:58,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161435606] [2021-10-13 01:17:58,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 01:17:58,634 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:17:58,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:58,646 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:17:58,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-13 01:17:58,700 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 01:17:58,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:17:58,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:17:58,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:58,737 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:17:58,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161435606] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:17:58,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:17:58,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-13 01:17:58,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636088055] [2021-10-13 01:17:58,738 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:17:58,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:58,739 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 3 times [2021-10-13 01:17:58,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:58,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548872071] [2021-10-13 01:17:58,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:58,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:58,755 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:58,778 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:58,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:17:58,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 01:17:58,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:17:58,923 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) [2021-10-13 01:17:58,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:17:58,948 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-10-13 01:17:58,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 01:17:58,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2021-10-13 01:17:58,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:17:58,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 14 transitions. [2021-10-13 01:17:58,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 01:17:58,950 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-13 01:17:58,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2021-10-13 01:17:58,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:17:58,950 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-13 01:17:58,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2021-10-13 01:17:58,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-10-13 01:17:58,952 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) [2021-10-13 01:17:58,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-10-13 01:17:58,952 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-13 01:17:58,952 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-13 01:17:58,952 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 01:17:58,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2021-10-13 01:17:58,953 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:17:58,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:58,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:58,953 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1] [2021-10-13 01:17:58,954 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:17:58,954 INFO L791 eck$LassoCheckResult]: Stem: 241#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 242#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 237#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 238#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 239#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 240#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 243#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 247#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 246#L21-3 assume !(main_~i~0 < 11); 244#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 245#L28-2 [2021-10-13 01:17:58,954 INFO L793 eck$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 [2021-10-13 01:17:58,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:58,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1489134225, now seen corresponding path program 3 times [2021-10-13 01:17:58,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:58,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713473190] [2021-10-13 01:17:58,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:58,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:59,015 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:17:59,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:17:59,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713473190] [2021-10-13 01:17:59,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713473190] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:17:59,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014030072] [2021-10-13 01:17:59,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 01:17:59,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:17:59,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,023 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-13 01:17:59,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-13 01:17:59,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:17:59,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 01:17:59,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:59,127 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:17:59,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014030072] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:17:59,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:17:59,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-13 01:17:59,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834733089] [2021-10-13 01:17:59,128 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:17:59,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:59,128 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 4 times [2021-10-13 01:17:59,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:59,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981377122] [2021-10-13 01:17:59,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:59,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:59,135 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:59,142 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:59,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:17:59,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 01:17:59,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:17:59,276 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) [2021-10-13 01:17:59,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:17:59,305 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-13 01:17:59,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 01:17:59,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2021-10-13 01:17:59,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:17:59,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2021-10-13 01:17:59,307 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 01:17:59,307 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-13 01:17:59,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2021-10-13 01:17:59,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:17:59,308 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-13 01:17:59,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2021-10-13 01:17:59,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-10-13 01:17:59,309 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) [2021-10-13 01:17:59,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-10-13 01:17:59,309 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-13 01:17:59,309 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-13 01:17:59,309 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 01:17:59,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 14 transitions. [2021-10-13 01:17:59,309 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:17:59,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:59,310 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:59,310 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2021-10-13 01:17:59,310 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:17:59,310 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 [2021-10-13 01:17:59,310 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 [2021-10-13 01:17:59,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:59,311 INFO L82 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 4 times [2021-10-13 01:17:59,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:59,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967409042] [2021-10-13 01:17:59,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:59,312 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:59,363 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:17:59,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:17:59,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967409042] [2021-10-13 01:17:59,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967409042] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:17:59,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48659747] [2021-10-13 01:17:59,364 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 01:17:59,365 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:17:59,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,368 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-13 01:17:59,417 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 01:17:59,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:17:59,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:17:59,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:17:59,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48659747] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:17:59,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:17:59,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-13 01:17:59,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477592099] [2021-10-13 01:17:59,483 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:17:59,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:59,483 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 5 times [2021-10-13 01:17:59,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:59,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808573154] [2021-10-13 01:17:59,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:59,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:59,493 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:59,512 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:59,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:17:59,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 01:17:59,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-13 01:17:59,620 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) [2021-10-13 01:17:59,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:17:59,666 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-13 01:17:59,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 01:17:59,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 18 transitions. [2021-10-13 01:17:59,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:17:59,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 18 transitions. [2021-10-13 01:17:59,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 01:17:59,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-13 01:17:59,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 18 transitions. [2021-10-13 01:17:59,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:17:59,669 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-13 01:17:59,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 18 transitions. [2021-10-13 01:17:59,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-10-13 01:17:59,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:17:59,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-13 01:17:59,671 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-13 01:17:59,671 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-13 01:17:59,671 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 01:17:59,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2021-10-13 01:17:59,672 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:17:59,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:59,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:59,672 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2021-10-13 01:17:59,673 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:17:59,673 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 [2021-10-13 01:17:59,673 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 [2021-10-13 01:17:59,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:59,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 5 times [2021-10-13 01:17:59,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:59,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575180640] [2021-10-13 01:17:59,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:59,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:59,749 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:17:59,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:17:59,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575180640] [2021-10-13 01:17:59,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575180640] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:17:59,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901869970] [2021-10-13 01:17:59,750 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 01:17:59,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:17:59,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,752 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-13 01:17:59,821 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-13 01:17:59,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:17:59,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 01:17:59,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:59,869 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:17:59,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901869970] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:17:59,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:17:59,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-13 01:17:59,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618276810] [2021-10-13 01:17:59,871 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:17:59,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:59,872 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 6 times [2021-10-13 01:17:59,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:59,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505041404] [2021-10-13 01:17:59,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:59,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:59,889 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:59,904 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:18:00,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:18:00,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 01:18:00,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-13 01:18:00,012 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) [2021-10-13 01:18:00,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:18:00,047 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-13 01:18:00,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 01:18:00,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 20 transitions. [2021-10-13 01:18:00,048 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:18:00,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 20 transitions. [2021-10-13 01:18:00,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 01:18:00,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-13 01:18:00,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 20 transitions. [2021-10-13 01:18:00,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:18:00,049 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-13 01:18:00,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 20 transitions. [2021-10-13 01:18:00,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2021-10-13 01:18:00,051 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) [2021-10-13 01:18:00,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-13 01:18:00,051 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-13 01:18:00,051 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-13 01:18:00,051 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 01:18:00,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 18 transitions. [2021-10-13 01:18:00,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:18:00,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:18:00,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:18:00,052 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 1, 1, 1, 1] [2021-10-13 01:18:00,053 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:18:00,053 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 [2021-10-13 01:18:00,053 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 [2021-10-13 01:18:00,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:00,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1715480727, now seen corresponding path program 6 times [2021-10-13 01:18:00,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:18:00,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702730277] [2021-10-13 01:18:00,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:18:00,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:18:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:00,111 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:18:00,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:18:00,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702730277] [2021-10-13 01:18:00,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702730277] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:18:00,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99371927] [2021-10-13 01:18:00,112 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 01:18:00,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:18:00,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:00,114 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:18:00,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-13 01:18:00,209 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-13 01:18:00,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:18:00,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 01:18:00,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:18:00,273 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:18:00,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99371927] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:18:00,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:18:00,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-13 01:18:00,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516098280] [2021-10-13 01:18:00,275 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:18:00,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:00,275 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 7 times [2021-10-13 01:18:00,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:18:00,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904899098] [2021-10-13 01:18:00,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:18:00,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:18:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:00,288 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:18:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:00,299 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:18:00,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:18:00,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 01:18:00,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-13 01:18:00,415 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) [2021-10-13 01:18:00,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:18:00,443 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-13 01:18:00,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 01:18:00,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 22 transitions. [2021-10-13 01:18:00,444 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:18:00,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 22 transitions. [2021-10-13 01:18:00,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 01:18:00,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-13 01:18:00,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 22 transitions. [2021-10-13 01:18:00,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:18:00,445 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-13 01:18:00,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 22 transitions. [2021-10-13 01:18:00,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-10-13 01:18:00,446 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) [2021-10-13 01:18:00,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-10-13 01:18:00,447 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-13 01:18:00,447 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-13 01:18:00,447 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-13 01:18:00,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 20 transitions. [2021-10-13 01:18:00,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:18:00,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:18:00,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:18:00,448 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [7, 7, 1, 1, 1, 1] [2021-10-13 01:18:00,448 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:18:00,449 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 [2021-10-13 01:18:00,449 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 [2021-10-13 01:18:00,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:00,449 INFO L82 PathProgramCache]: Analyzing trace with hash -690407015, now seen corresponding path program 7 times [2021-10-13 01:18:00,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:18:00,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513977969] [2021-10-13 01:18:00,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:18:00,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:18:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:00,521 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:18:00,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:18:00,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513977969] [2021-10-13 01:18:00,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513977969] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:18:00,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192643262] [2021-10-13 01:18:00,522 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 01:18:00,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:18:00,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:00,535 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:18:00,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-13 01:18:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:00,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 01:18:00,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:18:00,691 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:18:00,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192643262] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:18:00,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:18:00,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-10-13 01:18:00,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987381208] [2021-10-13 01:18:00,694 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:18:00,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:00,694 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 8 times [2021-10-13 01:18:00,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:18:00,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434157597] [2021-10-13 01:18:00,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:18:00,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:18:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:00,706 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:18:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:00,717 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:18:00,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:18:00,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 01:18:00,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-13 01:18:00,825 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) [2021-10-13 01:18:00,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:18:00,874 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-10-13 01:18:00,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 01:18:00,875 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 24 transitions. [2021-10-13 01:18:00,876 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:18:00,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 24 transitions. [2021-10-13 01:18:00,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 01:18:00,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-13 01:18:00,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 24 transitions. [2021-10-13 01:18:00,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:18:00,877 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-13 01:18:00,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 24 transitions. [2021-10-13 01:18:00,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-10-13 01:18:00,878 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) [2021-10-13 01:18:00,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-10-13 01:18:00,879 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-13 01:18:00,879 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-13 01:18:00,879 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-13 01:18:00,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 22 transitions. [2021-10-13 01:18:00,880 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:18:00,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:18:00,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:18:00,885 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 1, 1, 1, 1] [2021-10-13 01:18:00,885 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:18:00,885 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 [2021-10-13 01:18:00,885 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 [2021-10-13 01:18:00,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:00,886 INFO L82 PathProgramCache]: Analyzing trace with hash -2056121829, now seen corresponding path program 8 times [2021-10-13 01:18:00,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:18:00,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527537234] [2021-10-13 01:18:00,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:18:00,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:18:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:01,004 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:18:01,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:18:01,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527537234] [2021-10-13 01:18:01,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527537234] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:18:01,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143397069] [2021-10-13 01:18:01,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 01:18:01,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:18:01,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:01,009 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:18:01,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-13 01:18:01,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 01:18:01,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:18:01,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 01:18:01,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:18:01,169 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:18:01,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143397069] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:18:01,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:18:01,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-10-13 01:18:01,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103294273] [2021-10-13 01:18:01,171 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:18:01,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:01,171 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 9 times [2021-10-13 01:18:01,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:18:01,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091791195] [2021-10-13 01:18:01,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:18:01,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:18:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:01,177 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:18:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:01,182 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:18:01,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:18:01,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 01:18:01,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-13 01:18:01,290 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) [2021-10-13 01:18:01,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:18:01,329 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-10-13 01:18:01,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 01:18:01,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 26 transitions. [2021-10-13 01:18:01,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:18:01,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 26 transitions. [2021-10-13 01:18:01,331 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 01:18:01,331 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-13 01:18:01,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 26 transitions. [2021-10-13 01:18:01,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:18:01,331 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-13 01:18:01,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 26 transitions. [2021-10-13 01:18:01,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-10-13 01:18:01,334 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) [2021-10-13 01:18:01,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-10-13 01:18:01,334 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-13 01:18:01,334 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-13 01:18:01,334 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-13 01:18:01,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 24 transitions. [2021-10-13 01:18:01,335 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:18:01,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:18:01,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:18:01,336 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [9, 9, 1, 1, 1, 1] [2021-10-13 01:18:01,336 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:18:01,336 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 [2021-10-13 01:18:01,337 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 [2021-10-13 01:18:01,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:01,337 INFO L82 PathProgramCache]: Analyzing trace with hash -248065507, now seen corresponding path program 9 times [2021-10-13 01:18:01,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:18:01,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783757561] [2021-10-13 01:18:01,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:18:01,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:18:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:01,434 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:18:01,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:18:01,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783757561] [2021-10-13 01:18:01,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783757561] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:18:01,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453730120] [2021-10-13 01:18:01,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 01:18:01,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:18:01,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:01,442 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:18:01,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-13 01:18:01,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-10-13 01:18:01,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:18:01,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 01:18:01,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:18:01,678 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:18:01,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453730120] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:18:01,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:18:01,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-13 01:18:01,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392161942] [2021-10-13 01:18:01,679 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:18:01,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:01,680 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 10 times [2021-10-13 01:18:01,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:18:01,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662294214] [2021-10-13 01:18:01,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:18:01,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:18:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:01,686 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:18:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:01,691 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:18:01,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:18:01,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 01:18:01,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-13 01:18:01,809 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) [2021-10-13 01:18:01,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:18:01,867 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2021-10-13 01:18:01,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 01:18:01,868 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2021-10-13 01:18:01,869 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:18:01,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 29 transitions. [2021-10-13 01:18:01,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-13 01:18:01,870 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-13 01:18:01,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 29 transitions. [2021-10-13 01:18:01,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:18:01,870 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 29 transitions. [2021-10-13 01:18:01,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 29 transitions. [2021-10-13 01:18:01,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2021-10-13 01:18:01,872 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) [2021-10-13 01:18:01,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-10-13 01:18:01,872 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-13 01:18:01,872 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-13 01:18:01,872 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-13 01:18:01,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 26 transitions. [2021-10-13 01:18:01,873 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:18:01,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:18:01,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:18:01,874 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1] [2021-10-13 01:18:01,874 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:18:01,874 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 [2021-10-13 01:18:01,874 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 [2021-10-13 01:18:01,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:01,878 INFO L82 PathProgramCache]: Analyzing trace with hash 2127272351, now seen corresponding path program 10 times [2021-10-13 01:18:01,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:18:01,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455872503] [2021-10-13 01:18:01,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:18:01,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:18:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:18:02,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:18:02,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455872503] [2021-10-13 01:18:02,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455872503] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:18:02,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825478070] [2021-10-13 01:18:02,037 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 01:18:02,037 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:18:02,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:02,038 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:18:02,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-13 01:18:02,131 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 01:18:02,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:18:02,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 01:18:02,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:18:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:18:02,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825478070] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:18:02,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:18:02,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-10-13 01:18:02,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574289847] [2021-10-13 01:18:02,219 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:18:02,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:02,220 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 11 times [2021-10-13 01:18:02,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:18:02,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010311949] [2021-10-13 01:18:02,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:18:02,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:18:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:02,226 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:18:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:02,236 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:18:02,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:18:02,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 01:18:02,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-13 01:18:02,339 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) [2021-10-13 01:18:02,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:18:02,390 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2021-10-13 01:18:02,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 01:18:02,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 30 transitions. [2021-10-13 01:18:02,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:18:02,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 30 transitions. [2021-10-13 01:18:02,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-13 01:18:02,392 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-13 01:18:02,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 30 transitions. [2021-10-13 01:18:02,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:18:02,393 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-10-13 01:18:02,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 30 transitions. [2021-10-13 01:18:02,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-10-13 01:18:02,394 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) [2021-10-13 01:18:02,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-10-13 01:18:02,395 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-13 01:18:02,395 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-13 01:18:02,395 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-13 01:18:02,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 28 transitions. [2021-10-13 01:18:02,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:18:02,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:18:02,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:18:02,396 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 11, 1, 1, 1, 1] [2021-10-13 01:18:02,396 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:18:02,397 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 [2021-10-13 01:18:02,397 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 [2021-10-13 01:18:02,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:02,397 INFO L82 PathProgramCache]: Analyzing trace with hash -95647583, now seen corresponding path program 11 times [2021-10-13 01:18:02,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:18:02,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931689926] [2021-10-13 01:18:02,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:18:02,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:18:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:02,438 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:18:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:02,469 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:18:02,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:02,470 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 12 times [2021-10-13 01:18:02,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:18:02,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296126411] [2021-10-13 01:18:02,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:18:02,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:18:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:02,477 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:18:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:02,487 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:18:02,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:02,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1329892248, now seen corresponding path program 1 times [2021-10-13 01:18:02,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:18:02,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295322570] [2021-10-13 01:18:02,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:18:02,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:18:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:02,528 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:18:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:18:02,560 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:18:15,164 WARN L207 SmtUtils]: Spent 12.48 s on a formula simplification. DAG size of input: 259 DAG size of output: 199 [2021-10-13 01:18:17,305 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:18:17,305 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:18:17,305 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:18:17,305 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:18:17,305 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:18:17,305 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:18:17,305 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:18:17,305 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:18:17,305 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_sendmail_tTflag_arr_one_loop.c_Iteration13_Lasso [2021-10-13 01:18:17,305 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:18:17,305 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:18:17,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:18:17,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:18:17,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:18:17,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:18:17,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:18:17,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:18:17,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:18:17,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:18:17,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:18:17,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:18:17,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:18:18,407 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:18:18,407 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:18:18,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:18:18,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:18,412 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:18:18,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 01:18:18,419 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:18:18,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:18:18,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:18:18,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:18:18,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:18:18,435 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:18:18,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:18:18,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:18:18,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:18,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:18:18,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:18,489 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:18:18,495 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:18:18,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:18:18,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:18:18,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:18:18,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:18:18,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:18:18,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:18:18,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:18:18,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 01:18:18,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:18:18,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:18,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:18:18,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:18,566 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:18:18,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:18:18,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:18:18,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:18:18,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:18:18,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:18:18,579 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:18:18,579 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:18:18,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 01:18:18,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:18:18,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:18,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:18:18,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:18,628 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:18:18,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:18:18,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:18:18,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:18:18,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:18:18,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:18:18,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 01:18:18,641 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:18:18,641 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:18:18,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:18:18,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:18,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:18:18,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:18,664 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:18:18,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 01:18:18,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:18:18,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:18:18,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:18:18,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:18:18,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:18:18,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:18:18,674 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:18:18,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:18:18,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-13 01:18:18,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:18:18,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:18,696 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:18:18,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 01:18:18,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:18:18,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:18:18,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:18:18,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:18:18,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:18:18,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:18:18,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:18:18,734 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:18:18,751 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-13 01:18:18,751 INFO L444 ModelExtractionUtils]: 9 out of 19 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-10-13 01:18:18,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:18:18,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:18,759 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:18:18,767 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:18:18,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 01:18:18,788 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 01:18:18,789 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:18:18,789 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 [] [2021-10-13 01:18:18,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:18,853 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-10-13 01:18:18,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:18,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:18:18,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:18:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:18,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:18:18,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:18:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:18:18,977 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 [2021-10-13 01:18:18,977 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) [2021-10-13 01:18:18,988 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. [2021-10-13 01:18:18,988 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 [2021-10-13 01:18:18,989 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) [2021-10-13 01:18:18,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2021-10-13 01:18:18,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 26 letters. Loop has 1 letters. [2021-10-13 01:18:18,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:18:18,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 27 letters. Loop has 1 letters. [2021-10-13 01:18:18,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:18:18,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 26 letters. Loop has 2 letters. [2021-10-13 01:18:18,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:18:18,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2021-10-13 01:18:18,993 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:18:18,994 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2021-10-13 01:18:18,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:18:18,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:18:18,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:18:18,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:18:18,994 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:18:18,994 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:18:18,994 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:18:18,995 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-13 01:18:18,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:18:18,995 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:18:18,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 01:18:19,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:18:19 BoogieIcfgContainer [2021-10-13 01:18:19,000 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:18:19,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:18:19,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:18:19,001 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:18:19,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:17:54" (3/4) ... [2021-10-13 01:18:19,004 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:18:19,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:18:19,006 INFO L168 Benchmark]: Toolchain (without parser) took 24798.61 ms. Allocated memory was 90.2 MB in the beginning and 148.9 MB in the end (delta: 58.7 MB). Free memory was 63.0 MB in the beginning and 42.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 81.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:19,006 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 90.2 MB. Free memory is still 60.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:18:19,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.26 ms. Allocated memory is still 90.2 MB. Free memory was 62.7 MB in the beginning and 53.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:19,008 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.87 ms. Allocated memory is still 90.2 MB. Free memory was 53.1 MB in the beginning and 51.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:18:19,008 INFO L168 Benchmark]: Boogie Preprocessor took 20.58 ms. Allocated memory is still 90.2 MB. Free memory was 51.7 MB in the beginning and 50.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:19,008 INFO L168 Benchmark]: RCFGBuilder took 278.57 ms. Allocated memory is still 90.2 MB. Free memory was 50.4 MB in the beginning and 40.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:19,009 INFO L168 Benchmark]: BuchiAutomizer took 24185.84 ms. Allocated memory was 90.2 MB in the beginning and 148.9 MB in the end (delta: 58.7 MB). Free memory was 40.4 MB in the beginning and 43.2 MB in the end (delta: -2.8 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:19,009 INFO L168 Benchmark]: Witness Printer took 3.75 ms. Allocated memory is still 148.9 MB. Free memory was 43.2 MB in the beginning and 42.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:19,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 90.2 MB. Free memory is still 60.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 256.26 ms. Allocated memory is still 90.2 MB. Free memory was 62.7 MB in the beginning and 53.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.87 ms. Allocated memory is still 90.2 MB. Free memory was 53.1 MB in the beginning and 51.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.58 ms. Allocated memory is still 90.2 MB. Free memory was 51.7 MB in the beginning and 50.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 278.57 ms. Allocated memory is still 90.2 MB. Free memory was 50.4 MB in the beginning and 40.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 24185.84 ms. Allocated memory was 90.2 MB in the beginning and 148.9 MB in the end (delta: 58.7 MB). Free memory was 40.4 MB in the beginning and 43.2 MB in the end (delta: -2.8 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.75 ms. Allocated memory is still 148.9 MB. Free memory was 43.2 MB in the beginning and 42.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. 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 24.1s and 14 iterations. TraceHistogramMax:11. Analysis of lassos took 23.2s. 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 31.9ms 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, 271.7ms 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: 44ms 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! [2021-10-13 01:18:19,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:19,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:19,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:19,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:19,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-10-13 01:18:20,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-10-13 01:18:20,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2021-10-13 01:18:20,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-10-13 01:18:20,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-10-13 01:18:20,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:21,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:21,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b60101-68c9-4e47-a025-7109eba75fac/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...