./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/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_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD --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-b2eff8b [2021-10-29 00:02:57,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 00:02:57,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 00:02:57,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 00:02:57,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 00:02:57,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 00:02:57,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 00:02:57,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 00:02:57,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 00:02:57,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 00:02:57,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 00:02:57,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 00:02:57,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 00:02:57,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 00:02:57,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 00:02:57,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 00:02:57,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 00:02:57,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 00:02:57,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 00:02:57,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 00:02:57,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 00:02:57,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 00:02:57,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 00:02:57,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 00:02:57,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 00:02:57,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 00:02:57,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 00:02:57,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 00:02:57,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 00:02:57,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 00:02:57,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 00:02:57,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 00:02:57,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 00:02:57,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 00:02:57,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 00:02:57,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 00:02:57,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 00:02:57,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 00:02:57,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 00:02:57,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 00:02:57,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 00:02:57,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-29 00:02:57,800 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 00:02:57,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 00:02:57,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 00:02:57,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 00:02:57,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 00:02:57,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 00:02:57,803 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 00:02:57,803 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-29 00:02:57,803 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-29 00:02:57,803 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-29 00:02:57,804 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-29 00:02:57,804 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-29 00:02:57,804 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-29 00:02:57,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 00:02:57,805 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 00:02:57,805 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 00:02:57,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 00:02:57,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 00:02:57,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 00:02:57,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-29 00:02:57,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-29 00:02:57,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-29 00:02:57,807 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 00:02:57,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 00:02:57,808 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-29 00:02:57,808 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 00:02:57,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-29 00:02:57,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 00:02:57,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 00:02:57,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 00:02:57,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-29 00:02:57,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 00:02:57,811 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-29 00:02:57,811 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_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bec73cbd355af8995620266d1bb50e13212a1740ed8bd583620b6985b8fd569c [2021-10-29 00:02:58,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 00:02:58,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 00:02:58,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 00:02:58,157 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 00:02:58,158 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 00:02:58,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c [2021-10-29 00:02:58,257 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/data/861a35cba/4a52fceaaef943b2801fa02e21baefe9/FLAG21364b06b [2021-10-29 00:02:58,800 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 00:02:58,800 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c [2021-10-29 00:02:58,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/data/861a35cba/4a52fceaaef943b2801fa02e21baefe9/FLAG21364b06b [2021-10-29 00:02:59,194 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/data/861a35cba/4a52fceaaef943b2801fa02e21baefe9 [2021-10-29 00:02:59,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 00:02:59,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 00:02:59,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 00:02:59,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 00:02:59,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 00:02:59,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:02:59" (1/1) ... [2021-10-29 00:02:59,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7461e28a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:59, skipping insertion in model container [2021-10-29 00:02:59,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:02:59" (1/1) ... [2021-10-29 00:02:59,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 00:02:59,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 00:02:59,466 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_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c[387,400] [2021-10-29 00:02:59,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:02:59,499 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 00:02:59,513 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_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/sv-benchmarks/c/bitvector-loops/verisec_sendmail_tTflag_arr_one_loop.c[387,400] [2021-10-29 00:02:59,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:02:59,551 INFO L208 MainTranslator]: Completed translation [2021-10-29 00:02:59,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:59 WrapperNode [2021-10-29 00:02:59,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 00:02:59,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 00:02:59,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 00:02:59,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 00:02:59,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:59" (1/1) ... [2021-10-29 00:02:59,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:59" (1/1) ... [2021-10-29 00:02:59,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 00:02:59,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 00:02:59,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 00:02:59,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 00:02:59,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:59" (1/1) ... [2021-10-29 00:02:59,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:59" (1/1) ... [2021-10-29 00:02:59,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:59" (1/1) ... [2021-10-29 00:02:59,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:59" (1/1) ... [2021-10-29 00:02:59,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:59" (1/1) ... [2021-10-29 00:02:59,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:59" (1/1) ... [2021-10-29 00:02:59,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:59" (1/1) ... [2021-10-29 00:02:59,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 00:02:59,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 00:02:59,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 00:02:59,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 00:02:59,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:59" (1/1) ... [2021-10-29 00:02:59,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:02:59,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:02:59,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:02:59,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-29 00:02:59,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 00:02:59,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 00:02:59,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 00:02:59,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 00:02:59,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 00:02:59,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 00:02:59,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 00:03:00,057 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 00:03:00,057 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-29 00:03:00,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:00 BoogieIcfgContainer [2021-10-29 00:03:00,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 00:03:00,062 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-29 00:03:00,073 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-29 00:03:00,077 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-29 00:03:00,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-29 00:03:00,078 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.10 12:02:59" (1/3) ... [2021-10-29 00:03:00,079 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32d6eefd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.10 12:03:00, skipping insertion in model container [2021-10-29 00:03:00,080 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-29 00:03:00,080 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:02:59" (2/3) ... [2021-10-29 00:03:00,080 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32d6eefd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.10 12:03:00, skipping insertion in model container [2021-10-29 00:03:00,080 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-29 00:03:00,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:00" (3/3) ... [2021-10-29 00:03:00,096 INFO L389 chiAutomizerObserver]: Analyzing ICFG verisec_sendmail_tTflag_arr_one_loop.c [2021-10-29 00:03:00,140 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-29 00:03:00,141 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-29 00:03:00,141 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-29 00:03:00,141 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-29 00:03:00,141 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-29 00:03:00,141 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-29 00:03:00,142 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-29 00:03:00,142 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-29 00:03:00,168 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) [2021-10-29 00:03:00,203 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-10-29 00:03:00,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:00,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:00,212 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-29 00:03:00,213 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-29 00:03:00,213 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-29 00:03:00,213 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) [2021-10-29 00:03:00,218 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-10-29 00:03:00,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:00,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:00,219 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-29 00:03:00,219 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-29 00:03:00,227 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 [2021-10-29 00:03:00,228 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 [2021-10-29 00:03:00,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:00,242 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-29 00:03:00,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:00,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478460688] [2021-10-29 00:03:00,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:00,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:00,401 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:00,470 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:00,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:00,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-29 00:03:00,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:00,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063569217] [2021-10-29 00:03:00,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:00,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:00,494 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:00,519 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:00,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:00,521 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-29 00:03:00,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:00,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004525519] [2021-10-29 00:03:00,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:00,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:00,568 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:00,609 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:01,389 INFO L210 LassoAnalysis]: Preferences: [2021-10-29 00:03:01,390 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-29 00:03:01,390 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-29 00:03:01,390 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-29 00:03:01,391 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-29 00:03:01,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:01,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-29 00:03:01,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-29 00:03:01,391 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_sendmail_tTflag_arr_one_loop.c_Iteration1_Lasso [2021-10-29 00:03:01,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-29 00:03:01,392 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-29 00:03:01,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:01,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:02,070 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-29 00:03:02,074 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-29 00:03:02,076 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,081 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,092 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 [2021-10-29 00:03:02,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:03:02,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:03:02,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:03:02,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-29 00:03:02,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:02,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:02,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,163 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,171 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 [2021-10-29 00:03:02,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,188 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:03:02,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:03:02,213 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:02,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-29 00:03:02,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:02,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,256 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,262 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 [2021-10-29 00:03:02,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:03:02,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:03:02,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:03:02,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-29 00:03:02,292 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:02,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:02,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,331 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,337 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 [2021-10-29 00:03:02,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:03:02,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,348 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:03:02,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:03:02,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-29 00:03:02,360 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:02,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:02,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,397 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-29 00:03:02,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-29 00:03:02,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:03:02,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:03:02,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:03:02,432 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:02,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:02,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,472 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,480 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-29 00:03:02,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:03:02,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:03:02,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:03:02,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-29 00:03:02,508 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:02,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:02,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,550 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-29 00:03:02,553 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 [2021-10-29 00:03:02,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,566 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:03:02,566 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:03:02,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:02,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:02,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,617 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-29 00:03:02,627 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 [2021-10-29 00:03:02,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:03:02,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:03:02,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:03:02,636 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:02,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:02,664 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,665 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-29 00:03:02,667 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 [2021-10-29 00:03:02,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:03:02,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:03:02,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:03:02,685 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:02,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:02,706 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,707 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-29 00:03:02,711 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 [2021-10-29 00:03:02,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:03:02,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:03:02,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:03:02,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:02,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:02,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,745 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-29 00:03:02,750 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 [2021-10-29 00:03:02,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:03:02,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:03:02,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:03:02,792 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:02,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:02,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,832 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,840 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 [2021-10-29 00:03:02,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,853 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:03:02,853 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:03:02,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:02,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-29 00:03:02,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:02,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,901 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-29 00:03:02,904 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 [2021-10-29 00:03:02,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:03:02,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:03:02,914 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:03:02,918 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:02,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-29 00:03:02,938 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:02,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:02,939 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:02,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-29 00:03:02,943 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 [2021-10-29 00:03:02,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:02,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:02,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:02,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:02,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:03:02,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:03:02,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:03,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:03,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:03,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:03,004 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:03,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-29 00:03:03,006 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 [2021-10-29 00:03:03,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:03,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:03,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:03,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:03,019 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:03:03,020 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:03:03,049 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:03,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:03,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:03,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:03,089 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:03,097 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 [2021-10-29 00:03:03,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:03,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:03,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:03,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:03,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:03:03,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:03:03,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-29 00:03:03,128 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:03,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:03,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:03,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:03,153 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:03,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-29 00:03:03,155 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 [2021-10-29 00:03:03,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:03,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:03:03,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:03,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:03,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:03,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:03:03,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:03:03,188 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:03,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:03,222 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:03,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:03,223 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:03,232 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 [2021-10-29 00:03:03,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:03,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:03,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:03,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:03,245 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:03:03,245 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:03:03,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-29 00:03:03,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:03,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:03,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:03,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:03,300 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:03,310 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 [2021-10-29 00:03:03,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:03,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:03,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:03,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:03,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:03:03,327 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:03:03,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-29 00:03:03,356 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-29 00:03:03,388 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-10-29 00:03:03,389 INFO L444 ModelExtractionUtils]: 1 out of 16 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-10-29 00:03:03,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:03,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:03,401 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:03,416 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-29 00:03:03,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-29 00:03:03,441 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-29 00:03:03,441 INFO L513 LassoAnalysis]: Proved termination. [2021-10-29 00:03:03,442 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#in~0.base)_1, ULTIMATE.start_main_~i~0) = 21*v_rep(select #length ULTIMATE.start_main_~#in~0.base)_1 - 2*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-29 00:03:03,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:03,515 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-10-29 00:03:03,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:03,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:03:03,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:03,597 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 00:03:03,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:03,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:03,677 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 [2021-10-29 00:03:03,679 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) [2021-10-29 00:03:03,726 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. [2021-10-29 00:03:03,727 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 [2021-10-29 00:03:03,728 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) [2021-10-29 00:03:03,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-10-29 00:03:03,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-29 00:03:03,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:03:03,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-29 00:03:03,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:03:03,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-29 00:03:03,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:03:03,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 35 transitions. [2021-10-29 00:03:03,736 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:03,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 7 states and 9 transitions. [2021-10-29 00:03:03,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-29 00:03:03,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-29 00:03:03,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2021-10-29 00:03:03,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:03:03,742 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-29 00:03:03,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2021-10-29 00:03:03,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-29 00:03:03,765 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) [2021-10-29 00:03:03,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-29 00:03:03,767 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-29 00:03:03,767 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-29 00:03:03,767 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-29 00:03:03,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-29 00:03:03,768 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:03,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:03,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:03,768 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-29 00:03:03,769 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:03,769 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 [2021-10-29 00:03:03,769 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 [2021-10-29 00:03:03,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:03,770 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-10-29 00:03:03,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:03,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155457722] [2021-10-29 00:03:03,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:03,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:03,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:03,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155457722] [2021-10-29 00:03:03,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155457722] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:03,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:03,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:03,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166808541] [2021-10-29 00:03:03,819 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-29 00:03:03,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:03,819 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2021-10-29 00:03:03,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:03,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909998498] [2021-10-29 00:03:03,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:03,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:03,860 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:03,876 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:03,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:04,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:04,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:04,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:04,096 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) [2021-10-29 00:03:04,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:04,112 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-10-29 00:03:04,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:04,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-10-29 00:03:04,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:04,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2021-10-29 00:03:04,115 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-29 00:03:04,115 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-29 00:03:04,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-10-29 00:03:04,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:03:04,115 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-29 00:03:04,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-10-29 00:03:04,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2021-10-29 00:03:04,116 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) [2021-10-29 00:03:04,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-10-29 00:03:04,117 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-10-29 00:03:04,117 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-10-29 00:03:04,117 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-29 00:03:04,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2021-10-29 00:03:04,118 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:04,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:04,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:04,118 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-29 00:03:04,119 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:04,119 INFO L791 eck$LassoCheckResult]: Stem: 148#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 149#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 144#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 145#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 146#L21-3 assume !(main_~i~0 < 11); 147#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 150#L28-2 [2021-10-29 00:03:04,119 INFO L793 eck$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 [2021-10-29 00:03:04,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:04,120 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2021-10-29 00:03:04,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:04,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255154433] [2021-10-29 00:03:04,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:04,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:04,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:04,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:04,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255154433] [2021-10-29 00:03:04,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255154433] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:04,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47483667] [2021-10-29 00:03:04,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:04,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:04,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:04,160 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:04,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-29 00:03:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:04,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 00:03:04,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:04,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:04,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47483667] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:04,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:03:04,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-29 00:03:04,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765308223] [2021-10-29 00:03:04,254 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-29 00:03:04,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:04,254 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2021-10-29 00:03:04,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:04,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348868892] [2021-10-29 00:03:04,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:04,257 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:04,284 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:04,294 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:04,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:04,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:03:04,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:03:04,435 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) [2021-10-29 00:03:04,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:04,462 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2021-10-29 00:03:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:03:04,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2021-10-29 00:03:04,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:04,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 12 transitions. [2021-10-29 00:03:04,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-29 00:03:04,465 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-29 00:03:04,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 12 transitions. [2021-10-29 00:03:04,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:03:04,465 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-29 00:03:04,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 12 transitions. [2021-10-29 00:03:04,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2021-10-29 00:03:04,467 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) [2021-10-29 00:03:04,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-10-29 00:03:04,467 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-29 00:03:04,467 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-29 00:03:04,467 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-29 00:03:04,467 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2021-10-29 00:03:04,468 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:04,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:04,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:04,469 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-29 00:03:04,469 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:04,469 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 [2021-10-29 00:03:04,469 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 [2021-10-29 00:03:04,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:04,470 INFO L85 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2021-10-29 00:03:04,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:04,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658680059] [2021-10-29 00:03:04,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:04,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:04,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:04,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658680059] [2021-10-29 00:03:04,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658680059] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:04,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161956378] [2021-10-29 00:03:04,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-29 00:03:04,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:04,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:04,518 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:04,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-29 00:03:04,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-29 00:03:04,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 00:03:04,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:03:04,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:04,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:04,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161956378] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:04,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:03:04,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-29 00:03:04,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271959227] [2021-10-29 00:03:04,617 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-29 00:03:04,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:04,617 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 3 times [2021-10-29 00:03:04,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:04,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949626471] [2021-10-29 00:03:04,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:04,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:04,626 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:04,635 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:04,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:04,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:03:04,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:03:04,767 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) [2021-10-29 00:03:04,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:04,796 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-10-29 00:03:04,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:03:04,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2021-10-29 00:03:04,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:04,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 14 transitions. [2021-10-29 00:03:04,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-29 00:03:04,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-29 00:03:04,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2021-10-29 00:03:04,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:03:04,799 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-29 00:03:04,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2021-10-29 00:03:04,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-10-29 00:03:04,800 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) [2021-10-29 00:03:04,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-10-29 00:03:04,801 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-29 00:03:04,801 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-29 00:03:04,801 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-29 00:03:04,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2021-10-29 00:03:04,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:04,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:04,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:04,802 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1] [2021-10-29 00:03:04,802 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:04,802 INFO L791 eck$LassoCheckResult]: Stem: 241#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 242#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 237#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 238#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 239#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 240#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 243#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 247#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 246#L21-3 assume !(main_~i~0 < 11); 244#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 245#L28-2 [2021-10-29 00:03:04,802 INFO L793 eck$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 [2021-10-29 00:03:04,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:04,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1489134225, now seen corresponding path program 3 times [2021-10-29 00:03:04,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:04,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599865572] [2021-10-29 00:03:04,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:04,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:04,853 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:04,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:04,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599865572] [2021-10-29 00:03:04,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599865572] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:04,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922462437] [2021-10-29 00:03:04,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-29 00:03:04,854 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:04,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:04,873 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:04,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-29 00:03:04,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-29 00:03:04,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 00:03:04,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 00:03:04,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:05,015 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:05,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922462437] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:05,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:03:05,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-29 00:03:05,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103704426] [2021-10-29 00:03:05,018 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-29 00:03:05,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:05,019 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 4 times [2021-10-29 00:03:05,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:05,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386820395] [2021-10-29 00:03:05,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:05,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:05,037 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:05,050 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:05,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:05,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 00:03:05,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:03:05,196 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) [2021-10-29 00:03:05,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:05,225 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-29 00:03:05,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:03:05,226 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2021-10-29 00:03:05,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:05,228 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2021-10-29 00:03:05,228 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-29 00:03:05,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-29 00:03:05,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2021-10-29 00:03:05,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:03:05,228 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-29 00:03:05,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2021-10-29 00:03:05,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-10-29 00:03:05,230 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) [2021-10-29 00:03:05,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-10-29 00:03:05,230 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-29 00:03:05,231 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-29 00:03:05,231 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-29 00:03:05,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 14 transitions. [2021-10-29 00:03:05,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:05,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:05,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:05,232 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2021-10-29 00:03:05,232 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:05,232 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 [2021-10-29 00:03:05,232 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 [2021-10-29 00:03:05,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:05,233 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 4 times [2021-10-29 00:03:05,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:05,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100690974] [2021-10-29 00:03:05,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:05,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:05,303 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:05,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:05,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100690974] [2021-10-29 00:03:05,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100690974] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:05,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188583381] [2021-10-29 00:03:05,304 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-29 00:03:05,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:05,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:05,307 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:05,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-29 00:03:05,361 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-29 00:03:05,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 00:03:05,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 00:03:05,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:05,418 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:05,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188583381] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:05,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:03:05,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-29 00:03:05,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160643759] [2021-10-29 00:03:05,419 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-29 00:03:05,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:05,420 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 5 times [2021-10-29 00:03:05,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:05,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346194536] [2021-10-29 00:03:05,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:05,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:05,440 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:05,459 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:05,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:05,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 00:03:05,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:03:05,588 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) [2021-10-29 00:03:05,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:05,624 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-29 00:03:05,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 00:03:05,625 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 18 transitions. [2021-10-29 00:03:05,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:05,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 18 transitions. [2021-10-29 00:03:05,626 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-29 00:03:05,626 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-29 00:03:05,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 18 transitions. [2021-10-29 00:03:05,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:03:05,627 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-29 00:03:05,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 18 transitions. [2021-10-29 00:03:05,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-10-29 00:03:05,628 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) [2021-10-29 00:03:05,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-29 00:03:05,629 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-29 00:03:05,629 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-29 00:03:05,629 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-29 00:03:05,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2021-10-29 00:03:05,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:05,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:05,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:05,633 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2021-10-29 00:03:05,633 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:05,633 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 [2021-10-29 00:03:05,634 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 [2021-10-29 00:03:05,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:05,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 5 times [2021-10-29 00:03:05,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:05,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346604044] [2021-10-29 00:03:05,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:05,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:05,731 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:05,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:05,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346604044] [2021-10-29 00:03:05,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346604044] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:05,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69648025] [2021-10-29 00:03:05,732 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-29 00:03:05,732 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:05,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:05,734 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:05,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-29 00:03:05,802 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-29 00:03:05,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 00:03:05,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 00:03:05,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:05,867 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:05,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69648025] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:05,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:03:05,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-29 00:03:05,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693763183] [2021-10-29 00:03:05,869 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-29 00:03:05,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:05,872 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 6 times [2021-10-29 00:03:05,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:05,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037724817] [2021-10-29 00:03:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:05,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:05,891 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:05,909 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:06,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:06,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 00:03:06,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-29 00:03:06,023 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) [2021-10-29 00:03:06,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:06,066 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-29 00:03:06,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 00:03:06,066 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 20 transitions. [2021-10-29 00:03:06,067 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:06,067 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 20 transitions. [2021-10-29 00:03:06,067 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-29 00:03:06,068 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-29 00:03:06,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 20 transitions. [2021-10-29 00:03:06,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:03:06,068 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-29 00:03:06,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 20 transitions. [2021-10-29 00:03:06,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2021-10-29 00:03:06,070 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) [2021-10-29 00:03:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-29 00:03:06,070 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-29 00:03:06,070 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-29 00:03:06,070 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-29 00:03:06,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 18 transitions. [2021-10-29 00:03:06,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:06,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:06,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:06,072 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 1, 1, 1, 1] [2021-10-29 00:03:06,072 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:06,072 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 [2021-10-29 00:03:06,072 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 [2021-10-29 00:03:06,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:06,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1715480727, now seen corresponding path program 6 times [2021-10-29 00:03:06,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:06,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539131080] [2021-10-29 00:03:06,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:06,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:06,155 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:06,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:06,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539131080] [2021-10-29 00:03:06,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539131080] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:06,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907134500] [2021-10-29 00:03:06,156 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-29 00:03:06,156 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:06,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:06,158 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:06,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-29 00:03:06,248 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-29 00:03:06,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 00:03:06,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 00:03:06,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:06,333 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:06,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907134500] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:06,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:03:06,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-29 00:03:06,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658294195] [2021-10-29 00:03:06,334 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-29 00:03:06,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:06,334 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 7 times [2021-10-29 00:03:06,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:06,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858497781] [2021-10-29 00:03:06,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:06,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:06,341 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:06,347 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:06,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:06,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 00:03:06,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-29 00:03:06,479 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) [2021-10-29 00:03:06,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:06,515 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-29 00:03:06,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 00:03:06,516 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 22 transitions. [2021-10-29 00:03:06,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:06,517 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 22 transitions. [2021-10-29 00:03:06,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-29 00:03:06,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-29 00:03:06,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 22 transitions. [2021-10-29 00:03:06,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:03:06,518 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-29 00:03:06,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 22 transitions. [2021-10-29 00:03:06,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-10-29 00:03:06,520 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) [2021-10-29 00:03:06,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-10-29 00:03:06,521 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-29 00:03:06,521 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-29 00:03:06,521 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-29 00:03:06,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 20 transitions. [2021-10-29 00:03:06,521 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:06,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:06,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:06,522 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [7, 7, 1, 1, 1, 1] [2021-10-29 00:03:06,522 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:06,523 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 [2021-10-29 00:03:06,523 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 [2021-10-29 00:03:06,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:06,523 INFO L85 PathProgramCache]: Analyzing trace with hash -690407015, now seen corresponding path program 7 times [2021-10-29 00:03:06,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:06,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231592368] [2021-10-29 00:03:06,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:06,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:06,598 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:06,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:06,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231592368] [2021-10-29 00:03:06,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231592368] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:06,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593481509] [2021-10-29 00:03:06,599 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-29 00:03:06,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:06,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:06,604 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:06,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-29 00:03:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:06,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 00:03:06,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:06,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593481509] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:06,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:03:06,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-10-29 00:03:06,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124549263] [2021-10-29 00:03:06,774 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-29 00:03:06,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:06,774 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 8 times [2021-10-29 00:03:06,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:06,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311779253] [2021-10-29 00:03:06,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:06,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:06,781 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:06,787 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:06,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:06,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 00:03:06,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-29 00:03:06,911 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) [2021-10-29 00:03:06,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:06,963 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-10-29 00:03:06,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-29 00:03:06,964 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 24 transitions. [2021-10-29 00:03:06,965 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:06,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 24 transitions. [2021-10-29 00:03:06,965 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-29 00:03:06,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-29 00:03:06,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 24 transitions. [2021-10-29 00:03:06,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:03:06,966 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-29 00:03:06,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 24 transitions. [2021-10-29 00:03:06,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-10-29 00:03:06,968 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) [2021-10-29 00:03:06,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-10-29 00:03:06,969 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-29 00:03:06,969 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-29 00:03:06,969 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-29 00:03:06,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 22 transitions. [2021-10-29 00:03:06,969 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:06,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:06,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:06,970 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 1, 1, 1, 1] [2021-10-29 00:03:06,971 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:06,971 INFO L791 eck$LassoCheckResult]: Stem: 666#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(39);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 667#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_#t~mem9, main_#t~post10, main_#t~mem11, main_~#in~0.base, main_~#in~0.offset, main_~s~0.base, main_~s~0.offset, main_~c~0, main_~i~0, main_~j~0, main_~idx_in~0;call main_~#in~0.base, main_~#in~0.offset := #Ultimate.allocOnStack(11);havoc main_~s~0.base, main_~s~0.offset;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~idx_in~0;main_~i~0 := 0; 662#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 663#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 664#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 665#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 668#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 682#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 681#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 680#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 679#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 678#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 677#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 676#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 675#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 674#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 673#L21-3 assume !!(main_~i~0 < 11);call write~int(main_#t~nondet8, main_~#in~0.base, main_~#in~0.offset + main_~i~0, 1);havoc main_#t~nondet8; 672#L21-2 main_#t~post7 := main_~i~0;main_~i~0 := 1 + main_#t~post7;havoc main_#t~post7; 671#L21-3 assume !(main_~i~0 < 11); 669#L21-4 call write~int(0, main_~#in~0.base, 10 + main_~#in~0.offset, 1);main_~idx_in~0 := 0;main_~s~0.base, main_~s~0.offset := main_~#in~0.base, main_~#in~0.offset;main_~i~0 := 0;call main_#t~mem9 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem9;havoc main_#t~mem9; 670#L28-2 [2021-10-29 00:03:06,971 INFO L793 eck$LassoCheckResult]: Loop: 670#L28-2 assume !!(48 <= main_~c~0 % 256 && main_~c~0 % 256 <= 57);main_~j~0 := main_~c~0 % 256 - 48;main_~i~0 := (if (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 <= 2147483647 then (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 else (10 * main_~i~0 + main_~j~0) % 4294967296 % 4294967296 - 4294967296);main_#t~post10 := main_~idx_in~0;main_~idx_in~0 := 1 + main_#t~post10;havoc main_#t~post10;call main_#t~mem11 := read~int(main_~#in~0.base, main_~#in~0.offset + main_~idx_in~0, 1);main_~c~0 := main_#t~mem11;havoc main_#t~mem11; 670#L28-2 [2021-10-29 00:03:06,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:06,972 INFO L85 PathProgramCache]: Analyzing trace with hash -2056121829, now seen corresponding path program 8 times [2021-10-29 00:03:06,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:06,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224575812] [2021-10-29 00:03:06,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:06,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:07,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:07,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224575812] [2021-10-29 00:03:07,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224575812] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:07,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124766761] [2021-10-29 00:03:07,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-29 00:03:07,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:07,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:07,086 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:07,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-29 00:03:07,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-29 00:03:07,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 00:03:07,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 00:03:07,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:07,264 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:07,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124766761] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:07,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:03:07,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-10-29 00:03:07,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55957472] [2021-10-29 00:03:07,266 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-29 00:03:07,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:07,266 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 9 times [2021-10-29 00:03:07,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:07,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142149214] [2021-10-29 00:03:07,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:07,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:07,275 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:07,287 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:07,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:07,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-29 00:03:07,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-29 00:03:07,415 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) [2021-10-29 00:03:07,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:07,458 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-10-29 00:03:07,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-29 00:03:07,459 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 26 transitions. [2021-10-29 00:03:07,460 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:07,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 26 transitions. [2021-10-29 00:03:07,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-29 00:03:07,460 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-29 00:03:07,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 26 transitions. [2021-10-29 00:03:07,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:03:07,461 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-29 00:03:07,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 26 transitions. [2021-10-29 00:03:07,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-10-29 00:03:07,463 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) [2021-10-29 00:03:07,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-10-29 00:03:07,463 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-29 00:03:07,464 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-29 00:03:07,464 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-29 00:03:07,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 24 transitions. [2021-10-29 00:03:07,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:07,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:07,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:07,466 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [9, 9, 1, 1, 1, 1] [2021-10-29 00:03:07,466 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:07,466 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 [2021-10-29 00:03:07,466 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 [2021-10-29 00:03:07,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:07,467 INFO L85 PathProgramCache]: Analyzing trace with hash -248065507, now seen corresponding path program 9 times [2021-10-29 00:03:07,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:07,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717517615] [2021-10-29 00:03:07,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:07,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:07,573 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:07,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:07,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717517615] [2021-10-29 00:03:07,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717517615] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:07,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686249201] [2021-10-29 00:03:07,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-29 00:03:07,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:07,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:07,576 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:07,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-29 00:03:07,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-10-29 00:03:07,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 00:03:07,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 00:03:07,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:07,825 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:07,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686249201] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:07,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:03:07,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-29 00:03:07,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410361183] [2021-10-29 00:03:07,827 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-29 00:03:07,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:07,827 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 10 times [2021-10-29 00:03:07,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:07,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620268264] [2021-10-29 00:03:07,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:07,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:07,834 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:07,839 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:07,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:07,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-29 00:03:07,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-29 00:03:07,952 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) [2021-10-29 00:03:08,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:08,019 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2021-10-29 00:03:08,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 00:03:08,020 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2021-10-29 00:03:08,021 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:08,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 29 transitions. [2021-10-29 00:03:08,021 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-29 00:03:08,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-29 00:03:08,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 29 transitions. [2021-10-29 00:03:08,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:03:08,022 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 29 transitions. [2021-10-29 00:03:08,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 29 transitions. [2021-10-29 00:03:08,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2021-10-29 00:03:08,024 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) [2021-10-29 00:03:08,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-10-29 00:03:08,025 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-29 00:03:08,025 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-29 00:03:08,025 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-29 00:03:08,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 26 transitions. [2021-10-29 00:03:08,026 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:08,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:08,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:08,027 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1] [2021-10-29 00:03:08,027 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:08,027 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 [2021-10-29 00:03:08,027 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 [2021-10-29 00:03:08,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:08,028 INFO L85 PathProgramCache]: Analyzing trace with hash 2127272351, now seen corresponding path program 10 times [2021-10-29 00:03:08,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:08,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566279202] [2021-10-29 00:03:08,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:08,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:08,138 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:08,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:08,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566279202] [2021-10-29 00:03:08,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566279202] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:08,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664841710] [2021-10-29 00:03:08,139 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-29 00:03:08,139 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:08,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:08,144 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:08,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-29 00:03:08,255 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-29 00:03:08,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 00:03:08,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 00:03:08,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:08,354 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:08,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664841710] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:08,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:03:08,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-10-29 00:03:08,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007899709] [2021-10-29 00:03:08,355 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-29 00:03:08,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:08,355 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 11 times [2021-10-29 00:03:08,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:08,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025867460] [2021-10-29 00:03:08,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:08,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:08,360 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:08,365 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:08,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:08,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-29 00:03:08,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-29 00:03:08,494 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) [2021-10-29 00:03:08,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:08,551 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2021-10-29 00:03:08,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 00:03:08,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 30 transitions. [2021-10-29 00:03:08,552 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:08,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 30 transitions. [2021-10-29 00:03:08,553 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-29 00:03:08,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-29 00:03:08,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 30 transitions. [2021-10-29 00:03:08,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:03:08,553 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-10-29 00:03:08,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 30 transitions. [2021-10-29 00:03:08,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-10-29 00:03:08,555 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) [2021-10-29 00:03:08,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-10-29 00:03:08,556 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-29 00:03:08,556 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-29 00:03:08,556 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-29 00:03:08,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 28 transitions. [2021-10-29 00:03:08,557 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:08,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:08,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:08,558 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 11, 1, 1, 1, 1] [2021-10-29 00:03:08,558 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:08,558 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 [2021-10-29 00:03:08,558 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 [2021-10-29 00:03:08,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:08,559 INFO L85 PathProgramCache]: Analyzing trace with hash -95647583, now seen corresponding path program 11 times [2021-10-29 00:03:08,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:08,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979915001] [2021-10-29 00:03:08,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:08,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:08,576 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:08,596 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:08,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:08,597 INFO L85 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 12 times [2021-10-29 00:03:08,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:08,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710936288] [2021-10-29 00:03:08,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:08,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:08,602 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:08,606 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:08,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:08,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1329892248, now seen corresponding path program 1 times [2021-10-29 00:03:08,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:08,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520983841] [2021-10-29 00:03:08,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:08,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:08,631 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:08,671 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:22,605 WARN L207 SmtUtils]: Spent 13.81 s on a formula simplification. DAG size of input: 259 DAG size of output: 199 [2021-10-29 00:03:24,933 INFO L210 LassoAnalysis]: Preferences: [2021-10-29 00:03:24,933 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-29 00:03:24,933 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-29 00:03:24,934 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-29 00:03:24,934 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-29 00:03:24,934 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:24,934 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-29 00:03:24,934 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-29 00:03:24,934 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_sendmail_tTflag_arr_one_loop.c_Iteration13_Lasso [2021-10-29 00:03:24,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-29 00:03:24,935 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-29 00:03:24,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:24,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:24,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:25,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:25,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:25,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:25,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:25,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:25,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:25,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:25,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-29 00:03:26,294 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-29 00:03:26,294 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-29 00:03:26,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:26,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:26,304 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:26,310 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 [2021-10-29 00:03:26,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:26,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:26,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:26,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:26,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:03:26,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:03:26,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-29 00:03:26,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:26,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:26,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:26,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:26,379 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:26,381 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 [2021-10-29 00:03:26,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:26,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-29 00:03:26,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:26,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:26,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:26,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-29 00:03:26,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-29 00:03:26,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-29 00:03:26,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:26,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:26,444 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:26,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:26,445 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:26,448 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 [2021-10-29 00:03:26,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:26,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:26,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:26,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:26,464 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:03:26,464 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:03:26,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-29 00:03:26,477 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:26,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:26,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:26,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:26,517 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:26,519 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 [2021-10-29 00:03:26,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:26,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:26,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:26,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:26,531 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:03:26,531 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:03:26,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-29 00:03:26,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:26,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:26,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:26,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:26,581 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:26,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-29 00:03:26,583 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 [2021-10-29 00:03:26,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:26,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:26,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:26,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:26,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:03:26,592 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:03:26,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-29 00:03:26,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:26,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:26,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:26,650 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:26,655 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 [2021-10-29 00:03:26,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-29 00:03:26,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-29 00:03:26,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-29 00:03:26,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-29 00:03:26,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-29 00:03:26,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-29 00:03:26,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-29 00:03:26,683 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-29 00:03:26,702 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-29 00:03:26,702 INFO L444 ModelExtractionUtils]: 9 out of 19 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-10-29 00:03:26,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:26,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:26,709 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:26,728 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-29 00:03:26,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-29 00:03:26,754 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-29 00:03:26,755 INFO L513 LassoAnalysis]: Proved termination. [2021-10-29 00:03:26,755 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 [] [2021-10-29 00:03:26,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-29 00:03:26,825 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-10-29 00:03:26,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:26,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:03:26,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:26,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:03:26,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:26,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:26,962 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 [2021-10-29 00:03:26,962 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) [2021-10-29 00:03:26,971 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. [2021-10-29 00:03:26,971 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 [2021-10-29 00:03:26,971 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) [2021-10-29 00:03:26,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2021-10-29 00:03:26,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 26 letters. Loop has 1 letters. [2021-10-29 00:03:26,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:03:26,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 27 letters. Loop has 1 letters. [2021-10-29 00:03:26,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:03:26,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 26 letters. Loop has 2 letters. [2021-10-29 00:03:26,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-29 00:03:26,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2021-10-29 00:03:26,974 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-29 00:03:26,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2021-10-29 00:03:26,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-29 00:03:26,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-29 00:03:26,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-29 00:03:26,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-29 00:03:26,975 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 00:03:26,975 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 00:03:26,975 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 00:03:26,975 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-29 00:03:26,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-29 00:03:26,975 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-29 00:03:26,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-29 00:03:26,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.10 12:03:26 BoogieIcfgContainer [2021-10-29 00:03:26,981 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-29 00:03:26,982 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:03:26,982 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:03:26,982 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:03:26,983 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:00" (3/4) ... [2021-10-29 00:03:26,986 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 00:03:26,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:03:26,987 INFO L168 Benchmark]: Toolchain (without parser) took 27787.16 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 66.0 MB in the beginning and 74.3 MB in the end (delta: -8.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:26,988 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory was 82.2 MB in the beginning and 82.2 MB in the end (delta: 78.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:26,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.50 ms. Allocated memory is still 100.7 MB. Free memory was 65.8 MB in the beginning and 77.3 MB in the end (delta: -11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:26,988 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.40 ms. Allocated memory is still 100.7 MB. Free memory was 77.3 MB in the beginning and 75.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:26,989 INFO L168 Benchmark]: Boogie Preprocessor took 55.87 ms. Allocated memory is still 100.7 MB. Free memory was 75.8 MB in the beginning and 74.8 MB in the end (delta: 985.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:26,989 INFO L168 Benchmark]: RCFGBuilder took 403.87 ms. Allocated memory is still 100.7 MB. Free memory was 74.8 MB in the beginning and 64.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:26,990 INFO L168 Benchmark]: BuchiAutomizer took 26919.76 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 64.4 MB in the beginning and 75.4 MB in the end (delta: -11.0 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:26,990 INFO L168 Benchmark]: Witness Printer took 4.20 ms. Allocated memory is still 130.0 MB. Free memory was 75.4 MB in the beginning and 74.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:26,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory was 82.2 MB in the beginning and 82.2 MB in the end (delta: 78.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 349.50 ms. Allocated memory is still 100.7 MB. Free memory was 65.8 MB in the beginning and 77.3 MB in the end (delta: -11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.40 ms. Allocated memory is still 100.7 MB. Free memory was 77.3 MB in the beginning and 75.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.87 ms. Allocated memory is still 100.7 MB. Free memory was 75.8 MB in the beginning and 74.8 MB in the end (delta: 985.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 403.87 ms. Allocated memory is still 100.7 MB. Free memory was 74.8 MB in the beginning and 64.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 26919.76 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 64.4 MB in the beginning and 75.4 MB in the end (delta: -11.0 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.20 ms. Allocated memory is still 130.0 MB. Free memory was 75.4 MB in the beginning and 74.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (11 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 21 * unknown-#length-unknown[in] + -2 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * idx_in + unknown-#length-unknown[in] + -1 * in and consists of 2 locations. 11 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 26.8s and 14 iterations. TraceHistogramMax:11. Analysis of lassos took 25.8s. Construction of modules took 0.3s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 13. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 23 StatesRemovedByMinimization, 11 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 12. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 52 SDtfs, 74 SDslu, 26 SDs, 0 SdLazy, 238 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 52ms 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! [2021-10-29 00:03:27,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:27,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:27,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:27,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-10-29 00:03:27,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:28,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-10-29 00:03:28,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:28,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-10-29 00:03:28,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-10-29 00:03:28,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-10-29 00:03:29,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-10-29 00:03:29,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee717e6e-7b45-4dcb-84b5-eafbfef3b58c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...