./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/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_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bec73cbd355af8995620266d1bb50e13212a1740ed8bd583620b6985b8fd569c .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:06:33,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:06:33,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:06:33,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:06:33,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:06:33,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:06:33,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:06:33,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:06:33,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:06:33,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:06:33,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:06:33,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:06:33,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:06:33,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:06:33,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:06:33,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:06:33,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:06:33,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:06:33,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:06:33,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:06:33,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:06:33,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:06:33,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:06:33,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:06:33,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:06:33,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:06:33,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:06:33,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:06:33,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:06:33,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:06:33,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:06:33,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:06:33,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:06:33,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:06:33,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:06:33,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:06:33,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:06:33,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:06:33,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:06:33,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:06:33,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:06:33,745 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:06:33,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:06:33,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:06:33,779 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:06:33,779 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:06:33,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:06:33,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:06:33,781 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:06:33,781 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:06:33,782 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:06:33,782 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:06:33,783 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:06:33,783 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:06:33,783 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:06:33,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:06:33,784 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:06:33,784 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:06:33,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:06:33,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:06:33,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:06:33,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:06:33,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:06:33,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:06:33,786 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:06:33,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:06:33,786 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:06:33,787 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:06:33,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:06:33,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:06:33,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:06:33,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:06:33,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:06:33,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:06:33,791 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:06:33,791 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_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bec73cbd355af8995620266d1bb50e13212a1740ed8bd583620b6985b8fd569c [2021-10-21 20:06:34,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:06:34,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:06:34,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:06:34,066 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:06:34,067 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:06:34,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c [2021-10-21 20:06:34,149 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/data/b541fe063/4cb973c3c76c4ffd921f7cc1476ed83d/FLAGdc036654f [2021-10-21 20:06:34,563 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:06:34,563 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c [2021-10-21 20:06:34,568 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/data/b541fe063/4cb973c3c76c4ffd921f7cc1476ed83d/FLAGdc036654f [2021-10-21 20:06:34,975 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/data/b541fe063/4cb973c3c76c4ffd921f7cc1476ed83d [2021-10-21 20:06:34,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:06:34,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:06:34,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:06:34,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:06:34,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:06:34,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:06:34" (1/1) ... [2021-10-21 20:06:34,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b20f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:06:34, skipping insertion in model container [2021-10-21 20:06:34,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:06:34" (1/1) ... [2021-10-21 20:06:34,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:06:35,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:06:35,169 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_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c[387,400] [2021-10-21 20:06:35,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:06:35,189 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:06:35,200 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_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c[387,400] [2021-10-21 20:06:35,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:06:35,219 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:06:35,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:06:35 WrapperNode [2021-10-21 20:06:35,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:06:35,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:06:35,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:06:35,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:06:35,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:06:35" (1/1) ... [2021-10-21 20:06:35,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:06:35" (1/1) ... [2021-10-21 20:06:35,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:06:35,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:06:35,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:06:35,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:06:35,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:06:35" (1/1) ... [2021-10-21 20:06:35,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:06:35" (1/1) ... [2021-10-21 20:06:35,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:06:35" (1/1) ... [2021-10-21 20:06:35,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:06:35" (1/1) ... [2021-10-21 20:06:35,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:06:35" (1/1) ... [2021-10-21 20:06:35,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:06:35" (1/1) ... [2021-10-21 20:06:35,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:06:35" (1/1) ... [2021-10-21 20:06:35,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:06:35,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:06:35,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:06:35,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:06:35,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:06:35" (1/1) ... [2021-10-21 20:06:35,286 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:35,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:35,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:35,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:06:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:06:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:06:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 20:06:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:06:35,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:06:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 20:06:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:06:35,535 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:06:35,535 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-21 20:06:35,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:06:35 BoogieIcfgContainer [2021-10-21 20:06:35,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:06:35,538 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:06:35,538 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:06:35,541 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:06:35,542 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:06:35,542 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:06:34" (1/3) ... [2021-10-21 20:06:35,543 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ac0a0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:06:35, skipping insertion in model container [2021-10-21 20:06:35,543 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:06:35,544 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:06:35" (2/3) ... [2021-10-21 20:06:35,544 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ac0a0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:06:35, skipping insertion in model container [2021-10-21 20:06:35,544 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:06:35,544 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:06:35" (3/3) ... [2021-10-21 20:06:35,545 INFO L389 chiAutomizerObserver]: Analyzing ICFG verisec_sendmail_tTflag_arr_one_loop.c [2021-10-21 20:06:35,588 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:06:35,588 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:06:35,588 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:06:35,589 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:06:35,589 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:06:35,589 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:06:35,589 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:06:35,589 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:06:35,600 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) [2021-10-21 20:06:35,614 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-10-21 20:06:35,615 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:35,615 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:35,619 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 20:06:35,619 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:06:35,620 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:06:35,620 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) [2021-10-21 20:06:35,621 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-10-21 20:06:35,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:35,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:35,622 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 20:06:35,622 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:06:35,628 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 [2021-10-21 20:06:35,628 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 [2021-10-21 20:06:35,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:35,634 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-21 20:06:35,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:35,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111512098] [2021-10-21 20:06:35,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:35,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:35,737 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:35,773 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:35,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:35,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-21 20:06:35,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:35,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825395391] [2021-10-21 20:06:35,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:35,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:35,798 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:35,815 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:35,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:35,820 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-21 20:06:35,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:35,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472467333] [2021-10-21 20:06:35,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:35,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:35,867 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:35,918 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:36,525 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:06:36,525 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:06:36,525 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:06:36,526 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:06:36,526 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:06:36,526 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:36,526 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:06:36,526 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:06:36,526 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_sendmail_tTflag_arr_one_loop.c_Iteration1_Lasso [2021-10-21 20:06:36,527 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:06:36,527 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:06:36,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:36,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:37,046 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:06:37,051 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:06:37,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:06:37,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:06:37,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:06:37,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:06:37,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:06:37,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,102 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,103 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:06:37,106 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 [2021-10-21 20:06:37,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,118 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:06:37,118 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:06:37,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,172 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,173 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:06:37,175 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 [2021-10-21 20:06:37,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:06:37,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:06:37,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:06:37,186 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,212 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,236 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 [2021-10-21 20:06:37,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:06:37,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:06:37,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:06:37,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:06:37,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,301 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 20:06:37,307 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 [2021-10-21 20:06:37,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:06:37,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,316 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:06:37,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:06:37,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,344 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 20:06:37,346 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 [2021-10-21 20:06:37,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:06:37,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:06:37,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:06:37,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,376 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,377 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 20:06:37,381 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 [2021-10-21 20:06:37,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:06:37,392 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:06:37,426 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,449 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 20:06:37,451 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 [2021-10-21 20:06:37,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:06:37,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:06:37,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:06:37,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,484 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 20:06:37,485 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 [2021-10-21 20:06:37,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:06:37,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:06:37,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:06:37,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-21 20:06:37,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,518 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:06:37,524 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 [2021-10-21 20:06:37,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:06:37,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:06:37,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:06:37,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,553 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 20:06:37,558 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 [2021-10-21 20:06:37,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:06:37,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:06:37,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:06:37,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,606 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 20:06:37,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:06:37,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,618 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:06:37,618 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:06:37,655 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,696 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,701 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 [2021-10-21 20:06:37,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:06:37,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:06:37,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:06:37,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 20:06:37,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,747 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 20:06:37,748 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:06:37,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,758 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:06:37,758 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:06:37,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,810 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,812 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 [2021-10-21 20:06:37,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 20:06:37,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,825 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:06:37,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:06:37,837 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,872 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,883 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 [2021-10-21 20:06:37,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,895 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:06:37,895 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:06:37,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 20:06:37,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:37,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:37,950 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:37,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:37,951 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:37,957 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 [2021-10-21 20:06:37,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:37,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:06:37,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:37,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:37,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:37,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:06:37,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:06:37,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 20:06:37,983 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:38,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:38,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:38,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:38,018 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:38,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 20:06:38,027 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 [2021-10-21 20:06:38,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:38,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:38,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:38,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:38,040 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:06:38,040 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:06:38,055 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:38,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:38,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:38,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:38,092 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:38,102 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 [2021-10-21 20:06:38,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:38,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:38,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:38,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:38,122 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:06:38,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:06:38,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 20:06:38,143 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:06:38,176 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-10-21 20:06:38,176 INFO L444 ModelExtractionUtils]: 1 out of 16 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-10-21 20:06:38,178 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:38,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:38,183 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:38,200 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:06:38,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 20:06:38,228 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:06:38,228 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:06:38,229 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#in~0.base)_1) = -2*ULTIMATE.start_main_~i~0 + 21*v_rep(select #length ULTIMATE.start_main_~#in~0.base)_1 Supporting invariants [] [2021-10-21 20:06:38,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:38,300 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-10-21 20:06:38,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:38,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:06:38,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:38,378 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:06:38,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:38,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:38,448 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 [2021-10-21 20:06:38,449 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) [2021-10-21 20:06:38,498 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. [2021-10-21 20:06:38,499 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 [2021-10-21 20:06:38,500 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) [2021-10-21 20:06:38,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-10-21 20:06:38,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-21 20:06:38,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:06:38,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 20:06:38,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:06:38,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-21 20:06:38,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:06:38,505 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 35 transitions. [2021-10-21 20:06:38,507 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:38,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 7 states and 9 transitions. [2021-10-21 20:06:38,510 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-21 20:06:38,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-21 20:06:38,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2021-10-21 20:06:38,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:06:38,511 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-21 20:06:38,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2021-10-21 20:06:38,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-21 20:06:38,527 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) [2021-10-21 20:06:38,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-21 20:06:38,528 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-21 20:06:38,528 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-21 20:06:38,528 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:06:38,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-21 20:06:38,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:38,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:38,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:38,529 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 20:06:38,529 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:06:38,530 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 [2021-10-21 20:06:38,530 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 [2021-10-21 20:06:38,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:38,530 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-10-21 20:06:38,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:38,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191818839] [2021-10-21 20:06:38,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:38,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:38,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:38,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:06:38,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191818839] [2021-10-21 20:06:38,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191818839] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:06:38,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:06:38,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:06:38,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226446626] [2021-10-21 20:06:38,630 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:06:38,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:38,630 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2021-10-21 20:06:38,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:38,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083254084] [2021-10-21 20:06:38,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:38,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:38,646 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:38,659 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:38,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:06:38,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:06:38,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:06:38,828 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) [2021-10-21 20:06:38,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:06:38,844 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-10-21 20:06:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:06:38,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-10-21 20:06:38,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:38,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2021-10-21 20:06:38,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:06:38,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 20:06:38,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-10-21 20:06:38,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:06:38,849 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-21 20:06:38,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-10-21 20:06:38,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2021-10-21 20:06:38,850 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) [2021-10-21 20:06:38,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-10-21 20:06:38,851 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-10-21 20:06:38,851 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-10-21 20:06:38,851 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:06:38,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2021-10-21 20:06:38,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:38,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:38,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:38,853 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:06:38,853 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:06:38,853 INFO L791 eck$LassoCheckResult]: Stem: 148#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 149#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 144#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 145#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 146#L21-3 assume !(main_~i~0 < 11); 147#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 150#L28-2 [2021-10-21 20:06:38,853 INFO L793 eck$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 [2021-10-21 20:06:38,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:38,854 INFO L82 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2021-10-21 20:06:38,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:38,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648660112] [2021-10-21 20:06:38,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:38,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:38,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:38,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:06:38,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648660112] [2021-10-21 20:06:38,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648660112] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:38,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520955111] [2021-10-21 20:06:38,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:38,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:06:38,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:38,920 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:06:38,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-21 20:06:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:38,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:06:38,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:39,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520955111] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:39,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:06:39,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-21 20:06:39,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926283305] [2021-10-21 20:06:39,001 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:06:39,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:39,002 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2021-10-21 20:06:39,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:39,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022547686] [2021-10-21 20:06:39,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:39,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:39,033 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:39,051 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:39,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:06:39,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:06:39,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:06:39,170 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) [2021-10-21 20:06:39,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:06:39,197 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2021-10-21 20:06:39,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:06:39,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2021-10-21 20:06:39,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:39,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 12 transitions. [2021-10-21 20:06:39,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:06:39,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 20:06:39,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 12 transitions. [2021-10-21 20:06:39,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:06:39,199 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-21 20:06:39,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 12 transitions. [2021-10-21 20:06:39,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2021-10-21 20:06:39,200 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) [2021-10-21 20:06:39,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-10-21 20:06:39,200 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-21 20:06:39,200 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-21 20:06:39,200 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 20:06:39,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2021-10-21 20:06:39,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:39,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:39,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:39,201 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-21 20:06:39,201 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:06:39,201 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 [2021-10-21 20:06:39,202 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 [2021-10-21 20:06:39,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:39,202 INFO L82 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2021-10-21 20:06:39,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:39,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187347567] [2021-10-21 20:06:39,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:39,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:39,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:39,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:06:39,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187347567] [2021-10-21 20:06:39,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187347567] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:39,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526085161] [2021-10-21 20:06:39,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:06:39,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:06:39,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:39,267 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:06:39,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-21 20:06:39,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:06:39,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:06:39,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:06:39,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:39,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:39,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526085161] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:39,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:06:39,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-21 20:06:39,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699455888] [2021-10-21 20:06:39,362 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:06:39,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:39,363 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 3 times [2021-10-21 20:06:39,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:39,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250088055] [2021-10-21 20:06:39,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:39,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:39,377 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:39,394 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:39,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:06:39,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:06:39,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:06:39,514 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) [2021-10-21 20:06:39,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:06:39,534 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-10-21 20:06:39,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:06:39,535 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2021-10-21 20:06:39,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:39,536 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 14 transitions. [2021-10-21 20:06:39,536 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:06:39,536 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 20:06:39,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2021-10-21 20:06:39,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:06:39,537 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-21 20:06:39,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2021-10-21 20:06:39,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-10-21 20:06:39,538 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) [2021-10-21 20:06:39,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-10-21 20:06:39,538 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-21 20:06:39,538 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-21 20:06:39,539 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 20:06:39,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2021-10-21 20:06:39,539 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:39,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:39,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:39,540 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1] [2021-10-21 20:06:39,540 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:06:39,540 INFO L791 eck$LassoCheckResult]: Stem: 241#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 242#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 237#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 238#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 239#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 240#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 243#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 247#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 246#L21-3 assume !(main_~i~0 < 11); 244#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 245#L28-2 [2021-10-21 20:06:39,540 INFO L793 eck$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 [2021-10-21 20:06:39,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:39,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1489134225, now seen corresponding path program 3 times [2021-10-21 20:06:39,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:39,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588839421] [2021-10-21 20:06:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:39,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:39,580 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:39,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:06:39,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588839421] [2021-10-21 20:06:39,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588839421] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:39,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062821539] [2021-10-21 20:06:39,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:06:39,581 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:06:39,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:39,583 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:06:39,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-21 20:06:39,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-21 20:06:39,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:06:39,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:06:39,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:39,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062821539] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:39,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:06:39,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-21 20:06:39,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276692530] [2021-10-21 20:06:39,713 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:06:39,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:39,713 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 4 times [2021-10-21 20:06:39,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:39,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879513520] [2021-10-21 20:06:39,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:39,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:39,720 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:39,726 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:39,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:06:39,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:06:39,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:06:39,860 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) [2021-10-21 20:06:39,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:06:39,895 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-21 20:06:39,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:06:39,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2021-10-21 20:06:39,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:39,897 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2021-10-21 20:06:39,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:06:39,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 20:06:39,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2021-10-21 20:06:39,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:06:39,897 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-21 20:06:39,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2021-10-21 20:06:39,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-10-21 20:06:39,899 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) [2021-10-21 20:06:39,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-10-21 20:06:39,899 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-21 20:06:39,899 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-21 20:06:39,899 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 20:06:39,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 14 transitions. [2021-10-21 20:06:39,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:39,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:39,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:39,901 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2021-10-21 20:06:39,901 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:06:39,901 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 [2021-10-21 20:06:39,901 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 [2021-10-21 20:06:39,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:39,902 INFO L82 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 4 times [2021-10-21 20:06:39,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:39,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271575308] [2021-10-21 20:06:39,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:39,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:39,947 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:39,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:06:39,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271575308] [2021-10-21 20:06:39,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271575308] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:39,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685463951] [2021-10-21 20:06:39,948 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 20:06:39,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:06:39,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:39,950 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:06:39,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-21 20:06:40,013 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 20:06:40,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:06:40,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:06:40,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:40,065 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:40,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685463951] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:40,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:06:40,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-21 20:06:40,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124849660] [2021-10-21 20:06:40,066 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:06:40,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:40,066 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 5 times [2021-10-21 20:06:40,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:40,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184575763] [2021-10-21 20:06:40,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:40,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:40,078 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:40,096 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:40,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:06:40,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:06:40,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:06:40,221 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) [2021-10-21 20:06:40,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:06:40,257 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-21 20:06:40,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:06:40,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 18 transitions. [2021-10-21 20:06:40,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:40,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 18 transitions. [2021-10-21 20:06:40,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:06:40,260 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 20:06:40,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 18 transitions. [2021-10-21 20:06:40,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:06:40,260 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-21 20:06:40,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 18 transitions. [2021-10-21 20:06:40,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-10-21 20:06:40,261 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) [2021-10-21 20:06:40,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-21 20:06:40,262 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-21 20:06:40,262 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-21 20:06:40,262 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 20:06:40,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2021-10-21 20:06:40,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:40,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:40,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:40,263 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2021-10-21 20:06:40,263 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:06:40,263 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 [2021-10-21 20:06:40,263 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 [2021-10-21 20:06:40,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:40,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 5 times [2021-10-21 20:06:40,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:40,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618376528] [2021-10-21 20:06:40,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:40,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:40,346 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:40,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:06:40,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618376528] [2021-10-21 20:06:40,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618376528] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:40,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794853397] [2021-10-21 20:06:40,346 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 20:06:40,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:06:40,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:40,348 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:06:40,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-21 20:06:40,411 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-21 20:06:40,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:06:40,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:06:40,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:40,467 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:40,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794853397] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:40,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:06:40,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-21 20:06:40,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383810198] [2021-10-21 20:06:40,468 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:06:40,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:40,469 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 6 times [2021-10-21 20:06:40,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:40,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45145140] [2021-10-21 20:06:40,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:40,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:40,482 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:40,500 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:40,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:06:40,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:06:40,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:06:40,609 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) [2021-10-21 20:06:40,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:06:40,644 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-21 20:06:40,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:06:40,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 20 transitions. [2021-10-21 20:06:40,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:40,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 20 transitions. [2021-10-21 20:06:40,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:06:40,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 20:06:40,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 20 transitions. [2021-10-21 20:06:40,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:06:40,647 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-21 20:06:40,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 20 transitions. [2021-10-21 20:06:40,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2021-10-21 20:06:40,648 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) [2021-10-21 20:06:40,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-21 20:06:40,649 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-21 20:06:40,649 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-21 20:06:40,649 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 20:06:40,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 18 transitions. [2021-10-21 20:06:40,650 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:40,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:40,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:40,650 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 1, 1, 1, 1] [2021-10-21 20:06:40,650 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:06:40,651 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 [2021-10-21 20:06:40,651 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 [2021-10-21 20:06:40,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:40,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1715480727, now seen corresponding path program 6 times [2021-10-21 20:06:40,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:40,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527479094] [2021-10-21 20:06:40,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:40,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:40,725 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:40,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:06:40,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527479094] [2021-10-21 20:06:40,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527479094] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:40,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894917507] [2021-10-21 20:06:40,726 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 20:06:40,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:06:40,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:40,729 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:06:40,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-21 20:06:40,815 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-21 20:06:40,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:06:40,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:06:40,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:40,881 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:40,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894917507] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:40,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:06:40,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-21 20:06:40,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391273374] [2021-10-21 20:06:40,882 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:06:40,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:40,882 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 7 times [2021-10-21 20:06:40,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:40,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391455084] [2021-10-21 20:06:40,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:40,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:40,907 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:40,917 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:41,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:06:41,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 20:06:41,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:06:41,033 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) [2021-10-21 20:06:41,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:06:41,066 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-21 20:06:41,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:06:41,066 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 22 transitions. [2021-10-21 20:06:41,067 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:41,067 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 22 transitions. [2021-10-21 20:06:41,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:06:41,068 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 20:06:41,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 22 transitions. [2021-10-21 20:06:41,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:06:41,068 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-21 20:06:41,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 22 transitions. [2021-10-21 20:06:41,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-10-21 20:06:41,070 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) [2021-10-21 20:06:41,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-10-21 20:06:41,070 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-21 20:06:41,070 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-21 20:06:41,070 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-21 20:06:41,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 20 transitions. [2021-10-21 20:06:41,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:41,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:41,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:41,072 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [7, 7, 1, 1, 1, 1] [2021-10-21 20:06:41,072 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:06:41,072 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 [2021-10-21 20:06:41,072 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 [2021-10-21 20:06:41,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:41,073 INFO L82 PathProgramCache]: Analyzing trace with hash -690407015, now seen corresponding path program 7 times [2021-10-21 20:06:41,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:41,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310814478] [2021-10-21 20:06:41,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:41,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:41,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:06:41,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310814478] [2021-10-21 20:06:41,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310814478] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:41,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832153814] [2021-10-21 20:06:41,144 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 20:06:41,144 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:06:41,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:41,147 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:06:41,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-21 20:06:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:41,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:06:41,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:41,293 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:41,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832153814] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:41,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:06:41,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-10-21 20:06:41,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600435483] [2021-10-21 20:06:41,295 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:06:41,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:41,296 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 8 times [2021-10-21 20:06:41,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:41,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380912317] [2021-10-21 20:06:41,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:41,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:41,303 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:41,319 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:41,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:06:41,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 20:06:41,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:06:41,428 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) [2021-10-21 20:06:41,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:06:41,461 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-10-21 20:06:41,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 20:06:41,461 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 24 transitions. [2021-10-21 20:06:41,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:41,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 24 transitions. [2021-10-21 20:06:41,463 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:06:41,463 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 20:06:41,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 24 transitions. [2021-10-21 20:06:41,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:06:41,463 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-21 20:06:41,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 24 transitions. [2021-10-21 20:06:41,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-10-21 20:06:41,465 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) [2021-10-21 20:06:41,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-10-21 20:06:41,466 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-21 20:06:41,466 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-21 20:06:41,466 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-21 20:06:41,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 22 transitions. [2021-10-21 20:06:41,466 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:41,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:41,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:41,467 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 1, 1, 1, 1] [2021-10-21 20:06:41,467 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:06:41,467 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 [2021-10-21 20:06:41,467 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 [2021-10-21 20:06:41,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:41,468 INFO L82 PathProgramCache]: Analyzing trace with hash -2056121829, now seen corresponding path program 8 times [2021-10-21 20:06:41,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:41,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920799613] [2021-10-21 20:06:41,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:41,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:41,545 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:41,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:06:41,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920799613] [2021-10-21 20:06:41,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920799613] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:41,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098493044] [2021-10-21 20:06:41,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:06:41,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:06:41,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:41,552 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:06:41,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-21 20:06:41,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:06:41,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:06:41,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:06:41,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:41,736 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:41,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098493044] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:41,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:06:41,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-10-21 20:06:41,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023216504] [2021-10-21 20:06:41,738 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:06:41,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:41,738 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 9 times [2021-10-21 20:06:41,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:41,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473680009] [2021-10-21 20:06:41,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:41,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:41,746 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:41,760 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:41,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:06:41,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 20:06:41,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:06:41,864 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) [2021-10-21 20:06:41,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:06:41,903 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-10-21 20:06:41,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:06:41,903 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 26 transitions. [2021-10-21 20:06:41,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:41,904 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 26 transitions. [2021-10-21 20:06:41,904 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 20:06:41,904 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 20:06:41,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 26 transitions. [2021-10-21 20:06:41,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:06:41,904 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-21 20:06:41,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 26 transitions. [2021-10-21 20:06:41,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-10-21 20:06:41,905 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) [2021-10-21 20:06:41,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-10-21 20:06:41,906 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-21 20:06:41,906 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-21 20:06:41,906 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-21 20:06:41,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 24 transitions. [2021-10-21 20:06:41,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:41,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:41,906 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:41,907 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [9, 9, 1, 1, 1, 1] [2021-10-21 20:06:41,907 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:06:41,907 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 [2021-10-21 20:06:41,907 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 [2021-10-21 20:06:41,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:41,907 INFO L82 PathProgramCache]: Analyzing trace with hash -248065507, now seen corresponding path program 9 times [2021-10-21 20:06:41,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:41,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527999886] [2021-10-21 20:06:41,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:41,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:41,991 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:41,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:06:41,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527999886] [2021-10-21 20:06:41,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527999886] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:41,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92811716] [2021-10-21 20:06:41,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:06:41,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:06:41,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:41,993 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:06:41,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-21 20:06:42,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-10-21 20:06:42,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:06:42,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 20:06:42,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:42,192 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:42,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92811716] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:42,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:06:42,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-21 20:06:42,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367968680] [2021-10-21 20:06:42,193 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:06:42,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:42,194 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 10 times [2021-10-21 20:06:42,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:42,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59669469] [2021-10-21 20:06:42,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:42,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:42,199 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:42,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:42,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:06:42,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 20:06:42,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-21 20:06:42,301 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) [2021-10-21 20:06:42,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:06:42,353 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2021-10-21 20:06:42,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 20:06:42,355 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2021-10-21 20:06:42,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:42,356 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 29 transitions. [2021-10-21 20:06:42,356 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 20:06:42,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 20:06:42,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 29 transitions. [2021-10-21 20:06:42,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:06:42,356 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 29 transitions. [2021-10-21 20:06:42,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 29 transitions. [2021-10-21 20:06:42,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2021-10-21 20:06:42,358 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) [2021-10-21 20:06:42,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-10-21 20:06:42,358 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-21 20:06:42,358 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-21 20:06:42,358 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-21 20:06:42,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 26 transitions. [2021-10-21 20:06:42,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:42,359 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:42,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:42,360 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1] [2021-10-21 20:06:42,360 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:06:42,360 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 [2021-10-21 20:06:42,360 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 [2021-10-21 20:06:42,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:42,361 INFO L82 PathProgramCache]: Analyzing trace with hash 2127272351, now seen corresponding path program 10 times [2021-10-21 20:06:42,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:42,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416514635] [2021-10-21 20:06:42,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:42,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:42,478 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:42,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:06:42,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416514635] [2021-10-21 20:06:42,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416514635] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:42,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615044559] [2021-10-21 20:06:42,479 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 20:06:42,480 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:06:42,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:42,481 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:06:42,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-21 20:06:42,585 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 20:06:42,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:06:42,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 20:06:42,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:42,673 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:42,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615044559] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:06:42,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:06:42,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-10-21 20:06:42,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511048897] [2021-10-21 20:06:42,675 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:06:42,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:42,675 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 11 times [2021-10-21 20:06:42,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:42,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137781322] [2021-10-21 20:06:42,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:42,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:42,701 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:42,706 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:42,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:06:42,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 20:06:42,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-21 20:06:42,816 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) [2021-10-21 20:06:42,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:06:42,863 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2021-10-21 20:06:42,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 20:06:42,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 30 transitions. [2021-10-21 20:06:42,864 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:42,865 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 30 transitions. [2021-10-21 20:06:42,865 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 20:06:42,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 20:06:42,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 30 transitions. [2021-10-21 20:06:42,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:06:42,865 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-10-21 20:06:42,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 30 transitions. [2021-10-21 20:06:42,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-10-21 20:06:42,867 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) [2021-10-21 20:06:42,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-10-21 20:06:42,868 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-21 20:06:42,868 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-21 20:06:42,868 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-21 20:06:42,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 28 transitions. [2021-10-21 20:06:42,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 20:06:42,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:06:42,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:06:42,869 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 11, 1, 1, 1, 1] [2021-10-21 20:06:42,869 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:06:42,869 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 [2021-10-21 20:06:42,870 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 [2021-10-21 20:06:42,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:42,870 INFO L82 PathProgramCache]: Analyzing trace with hash -95647583, now seen corresponding path program 11 times [2021-10-21 20:06:42,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:42,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930927321] [2021-10-21 20:06:42,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:42,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:42,890 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:42,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:42,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:42,913 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 12 times [2021-10-21 20:06:42,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:42,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666390413] [2021-10-21 20:06:42,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:42,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:42,918 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:42,922 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:42,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:42,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1329892248, now seen corresponding path program 1 times [2021-10-21 20:06:42,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:06:42,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265098689] [2021-10-21 20:06:42,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:06:42,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:06:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:42,948 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:06:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:06:42,971 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:06:55,121 WARN L207 SmtUtils]: Spent 12.04 s on a formula simplification. DAG size of input: 259 DAG size of output: 199 [2021-10-21 20:06:57,224 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:06:57,224 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:06:57,224 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:06:57,224 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:06:57,224 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:06:57,224 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:57,224 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:06:57,225 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:06:57,225 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_sendmail_tTflag_arr_one_loop.c_Iteration13_Lasso [2021-10-21 20:06:57,225 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:06:57,225 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:06:57,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:57,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:57,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:57,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:57,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:57,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:57,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:57,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:57,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:57,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:57,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:06:58,284 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:06:58,284 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:06:58,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:58,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:58,291 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:58,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:06:58,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 20:06:58,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:58,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:58,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:58,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:58,301 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:06:58,301 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:06:58,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:58,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-21 20:06:58,334 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:58,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:58,335 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:58,352 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 [2021-10-21 20:06:58,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:58,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:06:58,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:58,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:58,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:58,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:06:58,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:06:58,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 20:06:58,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:58,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:58,412 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:58,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:58,413 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:58,414 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 [2021-10-21 20:06:58,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 20:06:58,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:58,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:58,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:58,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:58,424 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:06:58,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:06:58,438 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:58,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-21 20:06:58,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:58,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:58,457 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:58,468 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 [2021-10-21 20:06:58,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 20:06:58,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:58,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:58,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:58,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:58,477 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:06:58,477 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:06:58,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:58,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-21 20:06:58,505 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:58,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:58,506 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:58,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 20:06:58,508 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 [2021-10-21 20:06:58,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:58,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:58,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:58,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:58,517 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:06:58,517 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:06:58,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:06:58,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:58,579 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:58,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:58,581 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:58,589 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 [2021-10-21 20:06:58,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:06:58,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:06:58,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:06:58,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:06:58,603 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:06:58,603 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:06:58,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 20:06:58,612 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:06:58,626 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-21 20:06:58,626 INFO L444 ModelExtractionUtils]: 9 out of 19 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-10-21 20:06:58,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:06:58,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:06:58,628 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:06:58,629 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:06:58,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 20:06:58,660 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:06:58,660 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:06:58,660 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 [] [2021-10-21 20:06:58,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:58,730 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-10-21 20:06:58,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:06:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:58,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:06:58,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:06:58,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:06:58,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:06:58,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:06:58,856 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 [2021-10-21 20:06:58,856 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) [2021-10-21 20:06:58,864 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. [2021-10-21 20:06:58,865 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 [2021-10-21 20:06:58,865 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) [2021-10-21 20:06:58,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2021-10-21 20:06:58,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 26 letters. Loop has 1 letters. [2021-10-21 20:06:58,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:06:58,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 27 letters. Loop has 1 letters. [2021-10-21 20:06:58,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:06:58,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 26 letters. Loop has 2 letters. [2021-10-21 20:06:58,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:06:58,867 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2021-10-21 20:06:58,868 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:06:58,868 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2021-10-21 20:06:58,868 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:06:58,868 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:06:58,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:06:58,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:06:58,869 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:06:58,869 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:06:58,869 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:06:58,869 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-21 20:06:58,869 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:06:58,869 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:06:58,869 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:06:58,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:06:58 BoogieIcfgContainer [2021-10-21 20:06:58,875 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:06:58,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:06:58,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:06:58,876 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:06:58,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:06:35" (3/4) ... [2021-10-21 20:06:58,879 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:06:58,879 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:06:58,880 INFO L168 Benchmark]: Toolchain (without parser) took 23901.01 ms. Allocated memory was 88.1 MB in the beginning and 142.6 MB in the end (delta: 54.5 MB). Free memory was 51.5 MB in the beginning and 52.1 MB in the end (delta: -537.7 kB). Peak memory consumption was 54.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,880 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 88.1 MB. Free memory was 68.4 MB in the beginning and 68.4 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:06:58,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.89 ms. Allocated memory is still 88.1 MB. Free memory was 51.4 MB in the beginning and 65.0 MB in the end (delta: -13.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,881 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.43 ms. Allocated memory is still 88.1 MB. Free memory was 65.0 MB in the beginning and 63.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,881 INFO L168 Benchmark]: Boogie Preprocessor took 22.08 ms. Allocated memory is still 88.1 MB. Free memory was 63.4 MB in the beginning and 62.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,881 INFO L168 Benchmark]: RCFGBuilder took 261.02 ms. Allocated memory is still 88.1 MB. Free memory was 62.3 MB in the beginning and 52.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,882 INFO L168 Benchmark]: BuchiAutomizer took 23337.00 ms. Allocated memory was 88.1 MB in the beginning and 142.6 MB in the end (delta: 54.5 MB). Free memory was 52.2 MB in the beginning and 53.1 MB in the end (delta: -898.5 kB). Peak memory consumption was 55.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,882 INFO L168 Benchmark]: Witness Printer took 3.43 ms. Allocated memory is still 142.6 MB. Free memory was 53.1 MB in the beginning and 52.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:06:58,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 88.1 MB. Free memory was 68.4 MB in the beginning and 68.4 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 239.89 ms. Allocated memory is still 88.1 MB. Free memory was 51.4 MB in the beginning and 65.0 MB in the end (delta: -13.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.43 ms. Allocated memory is still 88.1 MB. Free memory was 65.0 MB in the beginning and 63.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.08 ms. Allocated memory is still 88.1 MB. Free memory was 63.4 MB in the beginning and 62.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 261.02 ms. Allocated memory is still 88.1 MB. Free memory was 62.3 MB in the beginning and 52.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 23337.00 ms. Allocated memory was 88.1 MB in the beginning and 142.6 MB in the end (delta: 54.5 MB). Free memory was 52.2 MB in the beginning and 53.1 MB in the end (delta: -898.5 kB). Peak memory consumption was 55.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.43 ms. Allocated memory is still 142.6 MB. Free memory was 53.1 MB in the beginning and 52.1 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 23.2s and 14 iterations. TraceHistogramMax:11. Analysis of lassos took 22.4s. 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 27.6ms 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, 265.8ms 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: 37ms 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! [2021-10-21 20:06:58,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:59,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:59,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:59,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:59,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-21 20:06:59,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-10-21 20:07:00,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-21 20:07:00,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-10-21 20:07:00,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-21 20:07:00,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-21 20:07:00,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-21 20:07:01,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d89f7c5a-35ec-40b9-a276-69c289a1ddcb/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...