./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f3eebd0d696af164582cbeee8be4a910d35e299c .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:20:49,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:20:49,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:20:49,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:20:49,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:20:49,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:20:49,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:20:49,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:20:49,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:20:49,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:20:49,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:20:49,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:20:49,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:20:49,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:20:49,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:20:49,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:20:49,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:20:49,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:20:49,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:20:49,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:20:49,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:20:49,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:20:49,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:20:49,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:20:49,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:20:49,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:20:49,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:20:49,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:20:49,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:20:49,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:20:49,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:20:49,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:20:49,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:20:49,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:20:49,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:20:49,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:20:49,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:20:49,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:20:49,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:20:49,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:20:49,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:20:49,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:20:49,801 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:20:49,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:20:49,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:20:49,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:20:49,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:20:49,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:20:49,808 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:20:49,808 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:20:49,808 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:20:49,808 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:20:49,809 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:20:49,810 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:20:49,810 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:20:49,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:20:49,810 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:20:49,811 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:20:49,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:20:49,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:20:49,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:20:49,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:20:49,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:20:49,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:20:49,812 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:20:49,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:20:49,813 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:20:49,813 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:20:49,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:20:49,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:20:49,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:20:49,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:20:49,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:20:49,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:20:49,818 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:20:49,818 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_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3eebd0d696af164582cbeee8be4a910d35e299c [2021-10-13 00:20:50,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:20:50,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:20:50,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:20:50,189 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:20:50,190 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:20:50,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i [2021-10-13 00:20:50,280 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/data/baadeae43/6f9da27f2dc74bcc81e91357b3ee1aaf/FLAG872ee08c7 [2021-10-13 00:20:51,006 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:20:51,007 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i [2021-10-13 00:20:51,035 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/data/baadeae43/6f9da27f2dc74bcc81e91357b3ee1aaf/FLAG872ee08c7 [2021-10-13 00:20:51,241 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/data/baadeae43/6f9da27f2dc74bcc81e91357b3ee1aaf [2021-10-13 00:20:51,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:20:51,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:20:51,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:20:51,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:20:51,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:20:51,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:20:51" (1/1) ... [2021-10-13 00:20:51,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d901cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:51, skipping insertion in model container [2021-10-13 00:20:51,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:20:51" (1/1) ... [2021-10-13 00:20:51,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:20:51,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:20:51,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:20:51,663 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:20:51,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:20:51,750 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:20:51,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:51 WrapperNode [2021-10-13 00:20:51,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:20:51,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:20:51,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:20:51,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:20:51,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:51" (1/1) ... [2021-10-13 00:20:51,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:51" (1/1) ... [2021-10-13 00:20:51,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:20:51,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:20:51,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:20:51,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:20:51,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:51" (1/1) ... [2021-10-13 00:20:51,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:51" (1/1) ... [2021-10-13 00:20:51,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:51" (1/1) ... [2021-10-13 00:20:51,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:51" (1/1) ... [2021-10-13 00:20:51,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:51" (1/1) ... [2021-10-13 00:20:51,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:51" (1/1) ... [2021-10-13 00:20:51,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:51" (1/1) ... [2021-10-13 00:20:51,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:20:51,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:20:51,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:20:51,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:20:51,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:51" (1/1) ... [2021-10-13 00:20:51,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:51,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:51,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:51,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:20:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:20:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:20:51,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:20:52,358 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:20:52,358 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-13 00:20:52,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:20:52 BoogieIcfgContainer [2021-10-13 00:20:52,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:20:52,361 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:20:52,361 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:20:52,378 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:20:52,379 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:20:52,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:20:51" (1/3) ... [2021-10-13 00:20:52,380 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26d5f07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:20:52, skipping insertion in model container [2021-10-13 00:20:52,381 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:20:52,381 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:51" (2/3) ... [2021-10-13 00:20:52,381 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26d5f07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:20:52, skipping insertion in model container [2021-10-13 00:20:52,381 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:20:52,381 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:20:52" (3/3) ... [2021-10-13 00:20:52,383 INFO L389 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrncmp-alloca-2.i [2021-10-13 00:20:52,448 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:20:52,448 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:20:52,448 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:20:52,448 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:20:52,448 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:20:52,449 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:20:52,449 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:20:52,449 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:20:52,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:20:52,498 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-13 00:20:52,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:20:52,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:20:52,505 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 00:20:52,505 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:20:52,505 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:20:52,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:20:52,511 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-13 00:20:52,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:20:52,512 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:20:52,512 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 00:20:52,512 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:20:52,522 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~nondet19, main_#t~ret20, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 8#L529true assume !(main_~length1~0 < 1); 18#L529-2true assume !(main_~length2~0 < 1); 3#L532-1true call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 4#L538-3true [2021-10-13 00:20:52,522 INFO L793 eck$LassoCheckResult]: Loop: 4#L538-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 17#L538-2true main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 4#L538-3true [2021-10-13 00:20:52,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:52,537 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-10-13 00:20:52,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:52,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923402537] [2021-10-13 00:20:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:52,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:52,702 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:52,760 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:52,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:52,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-10-13 00:20:52,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:52,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528328961] [2021-10-13 00:20:52,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:52,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:52,791 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:52,809 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:52,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:52,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2021-10-13 00:20:52,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:52,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751842411] [2021-10-13 00:20:52,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:52,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:52,876 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:52,926 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:53,385 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:20:53,386 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:20:53,386 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:20:53,386 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:20:53,387 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:20:53,387 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:53,387 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:20:53,387 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:20:53,387 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncmp-alloca-2.i_Iteration1_Lasso [2021-10-13 00:20:53,387 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:20:53,387 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:20:53,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:53,904 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:20:53,908 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:20:53,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:53,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:53,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:53,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:20:53,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:53,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:53,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:53,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:53,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:53,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:53,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:53,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:53,951 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:53,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:53,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:53,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:53,979 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:53,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:20:53,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:53,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:53,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:53,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:53,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:53,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:53,994 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:53,994 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:53,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:54,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:54,023 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:54,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:54,024 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:54,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:20:54,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:54,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:54,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:54,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:54,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:54,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:54,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:54,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:54,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:54,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:54,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:54,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:54,067 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:54,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:20:54,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:54,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:54,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:54,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:54,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:54,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:54,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:54,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:54,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:54,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:54,114 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:54,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:54,115 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:54,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:20:54,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:54,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:54,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:54,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:54,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:54,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:54,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:54,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:54,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:54,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-13 00:20:54,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:54,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:54,155 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:54,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:20:54,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:54,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:54,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:54,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:54,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:54,169 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:54,169 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:54,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:54,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-13 00:20:54,207 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:54,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:54,208 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:54,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:20:54,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:54,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:54,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:54,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:54,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:54,228 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:54,228 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:54,245 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:54,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-13 00:20:54,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:54,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:54,269 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:54,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:54,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:54,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:54,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:54,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:54,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:54,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:54,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:54,292 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:54,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:20:54,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:54,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:54,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:54,327 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:54,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:20:54,332 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:54,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:54,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:54,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:54,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:54,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:54,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:54,391 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:54,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-13 00:20:54,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:54,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:54,424 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:54,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:20:54,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:54,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:54,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:54,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:54,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:54,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:54,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:54,451 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:54,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:54,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:54,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:54,476 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:54,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:20:54,480 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 [2021-10-13 00:20:54,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:54,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:54,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:54,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:54,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:54,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:54,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:54,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:54,544 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:54,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:54,545 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:54,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:20:54,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:54,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:54,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:54,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:54,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:54,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:54,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:54,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:54,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:54,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:54,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:54,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:54,585 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:54,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:20:54,587 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:54,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:54,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:54,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:54,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:54,606 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:54,607 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:54,643 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:20:54,682 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-13 00:20:54,682 INFO L444 ModelExtractionUtils]: 14 out of 22 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-13 00:20:54,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:54,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:54,710 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:54,752 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:20:54,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:20:54,774 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:20:54,774 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:20:54,775 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-13 00:20:54,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:54,830 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-10-13 00:20:54,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:20:54,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:20:54,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:20:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:20:54,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:20:54,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:20:55,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:20:55,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:55,022 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:20:55,024 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:20:55,078 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 54 states and 79 transitions. Complement of second has 7 states. [2021-10-13 00:20:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:20:55,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:20:55,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2021-10-13 00:20:55,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 00:20:55,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:20:55,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-13 00:20:55,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:20:55,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-13 00:20:55,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:20:55,086 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 79 transitions. [2021-10-13 00:20:55,091 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-13 00:20:55,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 18 states and 23 transitions. [2021-10-13 00:20:55,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-13 00:20:55,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-13 00:20:55,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2021-10-13 00:20:55,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:20:55,098 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-13 00:20:55,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2021-10-13 00:20:55,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-13 00:20:55,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:20:55,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-10-13 00:20:55,129 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-13 00:20:55,129 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-13 00:20:55,130 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:20:55,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2021-10-13 00:20:55,133 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-13 00:20:55,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:20:55,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:20:55,134 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:20:55,134 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:20:55,135 INFO L791 eck$LassoCheckResult]: Stem: 153#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 154#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~nondet19, main_#t~ret20, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 156#L529 assume !(main_~length1~0 < 1); 157#L529-2 assume !(main_~length2~0 < 1); 152#L532-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 148#L538-3 assume !(main_~i~0 < main_~length1~0 - 1); 149#L538-4 main_~i~1 := 0; 155#L543-3 [2021-10-13 00:20:55,135 INFO L793 eck$LassoCheckResult]: Loop: 155#L543-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 162#L543-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 155#L543-3 [2021-10-13 00:20:55,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:55,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2021-10-13 00:20:55,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:55,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110293317] [2021-10-13 00:20:55,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:55,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:55,171 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:55,191 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:55,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:55,192 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2021-10-13 00:20:55,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:55,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489305577] [2021-10-13 00:20:55,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:55,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:55,200 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:55,206 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:55,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:55,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2021-10-13 00:20:55,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:55,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557741854] [2021-10-13 00:20:55,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:55,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:55,222 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:55,239 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:55,614 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:20:55,614 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:20:55,614 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:20:55,614 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:20:55,614 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:20:55,614 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:55,615 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:20:55,615 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:20:55,615 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncmp-alloca-2.i_Iteration2_Lasso [2021-10-13 00:20:55,615 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:20:55,615 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:20:55,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:55,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:20:56,078 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:20:56,078 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:20:56,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,079 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:20:56,087 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:56,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:56,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:56,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:56,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,140 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:20:56,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:56,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:56,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:56,151 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:56,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,172 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:20:56,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,187 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:56,187 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:56,203 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:56,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,246 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:20:56,256 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:56,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,267 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:56,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:56,283 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:56,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,315 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:20:56,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:56,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:56,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:56,330 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-10-13 00:20:56,350 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,351 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:20:56,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,362 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:56,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:56,378 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:56,399 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,399 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:20:56,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:56,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:56,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:56,451 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:56,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,486 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:20:56,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,495 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:56,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:56,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:56,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-13 00:20:56,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,520 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:20:56,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:56,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:56,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-13 00:20:56,596 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,597 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:20:56,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,611 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:56,611 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:56,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:56,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,649 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:20:56,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:56,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:56,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:56,666 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:56,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,686 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 00:20:56,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:56,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:56,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-13 00:20:56,758 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,759 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 00:20:56,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,772 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:56,772 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:56,781 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:56,801 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,802 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 00:20:56,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:20:56,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:20:56,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:20:56,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-13 00:20:56,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,860 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-13 00:20:56,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:56,883 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:56,885 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:20:56,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-13 00:20:56,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:56,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:56,906 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:56,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 00:20:56,909 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:20:56,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:20:56,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:20:56,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:20:56,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:20:56,922 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:20:56,923 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:20:56,959 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:20:57,008 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-10-13 00:20:57,008 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 14 variables to zero. [2021-10-13 00:20:57,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:20:57,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:57,016 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:20:57,018 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:20:57,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 00:20:57,041 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:20:57,041 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:20:57,041 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1, ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~nondetString2~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1 - 1*ULTIMATE.start_main_~i~1 - 1*ULTIMATE.start_main_~nondetString2~0.offset Supporting invariants [] [2021-10-13 00:20:57,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:57,094 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-10-13 00:20:57,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:20:57,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:20:57,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:20:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:20:57,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:20:57,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:20:57,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:20:57,184 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:20:57,186 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:20:57,222 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 36 transitions. Complement of second has 6 states. [2021-10-13 00:20:57,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:20:57,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:20:57,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-13 00:20:57,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-13 00:20:57,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:20:57,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 9 letters. Loop has 2 letters. [2021-10-13 00:20:57,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:20:57,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-13 00:20:57,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:20:57,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2021-10-13 00:20:57,232 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:20:57,237 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 19 states and 25 transitions. [2021-10-13 00:20:57,237 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-13 00:20:57,238 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-10-13 00:20:57,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2021-10-13 00:20:57,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:20:57,239 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-10-13 00:20:57,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2021-10-13 00:20:57,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-13 00:20:57,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:20:57,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2021-10-13 00:20:57,243 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-10-13 00:20:57,243 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-10-13 00:20:57,243 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:20:57,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2021-10-13 00:20:57,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:20:57,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:20:57,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:20:57,245 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:20:57,245 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-13 00:20:57,246 INFO L791 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 273#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~nondet19, main_#t~ret20, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 275#L529 assume !(main_~length1~0 < 1); 276#L529-2 assume !(main_~length2~0 < 1); 267#L532-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 268#L538-3 assume !(main_~i~0 < main_~length1~0 - 1); 269#L538-4 main_~i~1 := 0; 274#L543-3 assume !(main_~i~1 < main_~length2~0 - 1); 277#L543-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet19;havoc cstrncmp_#res;havoc cstrncmp_#t~mem4, cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, cstrncmp_#t~mem5, cstrncmp_#t~mem7, cstrncmp_#t~pre6.base, cstrncmp_#t~pre6.offset, cstrncmp_#t~mem8, cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, cstrncmp_#t~mem10, cstrncmp_#t~pre2, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 278#L516 assume !(0 == cstrncmp_~n % 4294967296); 283#L518-4 [2021-10-13 00:20:57,246 INFO L793 eck$LassoCheckResult]: Loop: 283#L518-4 call cstrncmp_#t~mem4 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post3.base, 1 + cstrncmp_#t~post3.offset;call cstrncmp_#t~mem5 := read~int(cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, 1); 284#L519 assume !(cstrncmp_#t~mem4 != cstrncmp_#t~mem5);havoc cstrncmp_#t~mem4;havoc cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset;havoc cstrncmp_#t~mem5;cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post9.base, 1 + cstrncmp_#t~post9.offset;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, 1); 279#L521 assume !(0 == cstrncmp_#t~mem10);havoc cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset;havoc cstrncmp_#t~mem10; 280#L518-1 cstrncmp_#t~pre2 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 285#L518-2 assume !!(0 != cstrncmp_#t~pre2 % 4294967296);havoc cstrncmp_#t~pre2; 283#L518-4 [2021-10-13 00:20:57,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:57,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1595220890, now seen corresponding path program 1 times [2021-10-13 00:20:57,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:57,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185541873] [2021-10-13 00:20:57,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:57,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:57,297 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:57,347 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:57,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:57,348 INFO L82 PathProgramCache]: Analyzing trace with hash 78411965, now seen corresponding path program 1 times [2021-10-13 00:20:57,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:57,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691896782] [2021-10-13 00:20:57,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:57,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:57,366 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:57,394 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:57,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:57,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1989497660, now seen corresponding path program 1 times [2021-10-13 00:20:57,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:57,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222248929] [2021-10-13 00:20:57,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:57,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:20:57,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:20:57,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:20:57,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222248929] [2021-10-13 00:20:57,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222248929] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:20:57,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:20:57,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 00:20:57,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942606447] [2021-10-13 00:20:57,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:20:57,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:20:57,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:20:57,902 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:20:58,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:20:58,051 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2021-10-13 00:20:58,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:20:58,052 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-10-13 00:20:58,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:20:58,054 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 20 states and 25 transitions. [2021-10-13 00:20:58,054 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-13 00:20:58,054 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-10-13 00:20:58,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2021-10-13 00:20:58,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:20:58,055 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-13 00:20:58,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2021-10-13 00:20:58,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-10-13 00:20:58,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:20:58,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-10-13 00:20:58,057 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-10-13 00:20:58,057 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-10-13 00:20:58,057 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:20:58,057 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2021-10-13 00:20:58,058 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:20:58,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:20:58,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:20:58,059 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:20:58,059 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-13 00:20:58,059 INFO L791 eck$LassoCheckResult]: Stem: 338#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 339#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~nondet19, main_#t~ret20, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 341#L529 assume !(main_~length1~0 < 1); 342#L529-2 assume !(main_~length2~0 < 1); 333#L532-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 334#L538-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 335#L538-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 336#L538-3 assume !(main_~i~0 < main_~length1~0 - 1); 337#L538-4 main_~i~1 := 0; 340#L543-3 assume !(main_~i~1 < main_~length2~0 - 1); 343#L543-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet19;havoc cstrncmp_#res;havoc cstrncmp_#t~mem4, cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, cstrncmp_#t~mem5, cstrncmp_#t~mem7, cstrncmp_#t~pre6.base, cstrncmp_#t~pre6.offset, cstrncmp_#t~mem8, cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, cstrncmp_#t~mem10, cstrncmp_#t~pre2, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 344#L516 assume !(0 == cstrncmp_~n % 4294967296); 349#L518-4 [2021-10-13 00:20:58,059 INFO L793 eck$LassoCheckResult]: Loop: 349#L518-4 call cstrncmp_#t~mem4 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post3.base, 1 + cstrncmp_#t~post3.offset;call cstrncmp_#t~mem5 := read~int(cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, 1); 350#L519 assume !(cstrncmp_#t~mem4 != cstrncmp_#t~mem5);havoc cstrncmp_#t~mem4;havoc cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset;havoc cstrncmp_#t~mem5;cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post9.base, 1 + cstrncmp_#t~post9.offset;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, 1); 345#L521 assume !(0 == cstrncmp_#t~mem10);havoc cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset;havoc cstrncmp_#t~mem10; 346#L518-1 cstrncmp_#t~pre2 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 351#L518-2 assume !!(0 != cstrncmp_#t~pre2 % 4294967296);havoc cstrncmp_#t~pre2; 349#L518-4 [2021-10-13 00:20:58,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:58,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1351083896, now seen corresponding path program 1 times [2021-10-13 00:20:58,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:58,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233452930] [2021-10-13 00:20:58,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:58,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:58,074 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:58,090 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:58,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:58,091 INFO L82 PathProgramCache]: Analyzing trace with hash 78411965, now seen corresponding path program 2 times [2021-10-13 00:20:58,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:58,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337728020] [2021-10-13 00:20:58,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:58,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:58,110 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:58,123 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:58,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:58,129 INFO L82 PathProgramCache]: Analyzing trace with hash -351427674, now seen corresponding path program 1 times [2021-10-13 00:20:58,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:58,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247390568] [2021-10-13 00:20:58,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:58,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:20:58,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-13 00:20:58,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 00:20:58,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:20:58,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247390568] [2021-10-13 00:20:58,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247390568] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:20:58,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:20:58,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-13 00:20:58,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075384077] [2021-10-13 00:20:58,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:20:58,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 00:20:58,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:20:58,616 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. cyclomatic complexity: 8 Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:20:58,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:20:58,802 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2021-10-13 00:20:58,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 00:20:58,803 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 29 transitions. [2021-10-13 00:20:58,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:20:58,804 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 20 states and 24 transitions. [2021-10-13 00:20:58,804 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-13 00:20:58,805 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-10-13 00:20:58,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2021-10-13 00:20:58,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:20:58,805 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-10-13 00:20:58,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2021-10-13 00:20:58,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-10-13 00:20:58,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:20:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-10-13 00:20:58,809 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-10-13 00:20:58,809 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-10-13 00:20:58,809 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:20:58,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2021-10-13 00:20:58,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:20:58,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:20:58,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:20:58,812 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:20:58,812 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-13 00:20:58,812 INFO L791 eck$LassoCheckResult]: Stem: 404#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 405#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~nondet19, main_#t~ret20, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 407#L529 assume !(main_~length1~0 < 1); 408#L529-2 assume !(main_~length2~0 < 1); 399#L532-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 400#L538-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 401#L538-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 402#L538-3 assume !(main_~i~0 < main_~length1~0 - 1); 403#L538-4 main_~i~1 := 0; 406#L543-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 413#L543-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 414#L543-3 assume !(main_~i~1 < main_~length2~0 - 1); 409#L543-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet19;havoc cstrncmp_#res;havoc cstrncmp_#t~mem4, cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, cstrncmp_#t~mem5, cstrncmp_#t~mem7, cstrncmp_#t~pre6.base, cstrncmp_#t~pre6.offset, cstrncmp_#t~mem8, cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, cstrncmp_#t~mem10, cstrncmp_#t~pre2, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 410#L516 assume !(0 == cstrncmp_~n % 4294967296); 415#L518-4 [2021-10-13 00:20:58,813 INFO L793 eck$LassoCheckResult]: Loop: 415#L518-4 call cstrncmp_#t~mem4 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post3.base, 1 + cstrncmp_#t~post3.offset;call cstrncmp_#t~mem5 := read~int(cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, 1); 416#L519 assume !(cstrncmp_#t~mem4 != cstrncmp_#t~mem5);havoc cstrncmp_#t~mem4;havoc cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset;havoc cstrncmp_#t~mem5;cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post9.base, 1 + cstrncmp_#t~post9.offset;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, 1); 411#L521 assume !(0 == cstrncmp_#t~mem10);havoc cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset;havoc cstrncmp_#t~mem10; 412#L518-1 cstrncmp_#t~pre2 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 417#L518-2 assume !!(0 != cstrncmp_#t~pre2 % 4294967296);havoc cstrncmp_#t~pre2; 415#L518-4 [2021-10-13 00:20:58,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:58,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1313217430, now seen corresponding path program 1 times [2021-10-13 00:20:58,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:58,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608025335] [2021-10-13 00:20:58,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:58,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:58,854 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:58,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:58,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:58,885 INFO L82 PathProgramCache]: Analyzing trace with hash 78411965, now seen corresponding path program 3 times [2021-10-13 00:20:58,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:58,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116443074] [2021-10-13 00:20:58,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:58,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:58,894 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:58,902 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:20:58,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:20:58,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1019129272, now seen corresponding path program 1 times [2021-10-13 00:20:58,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:20:58,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906537141] [2021-10-13 00:20:58,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:20:58,904 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:20:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:58,928 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:20:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:20:58,965 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:21:00,414 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:21:00,414 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:21:00,414 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:21:00,414 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:21:00,415 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:21:00,415 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:21:00,415 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:21:00,415 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:21:00,415 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncmp-alloca-2.i_Iteration5_Lasso [2021-10-13 00:21:00,415 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:21:00,415 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:21:00,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:00,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:00,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:00,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:21:01,840 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:21:01,840 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:21:01,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:21:01,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:21:01,862 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:21:01,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:21:01,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 00:21:01,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:21:01,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:21:01,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:21:01,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:21:01,873 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:21:01,873 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:21:01,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:21:01,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 00:21:01,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:21:01,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:21:01,900 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:21:01,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:21:01,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 00:21:01,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:21:01,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:21:01,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:21:01,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:21:01,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:21:01,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:21:01,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:21:01,912 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:21:01,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 00:21:01,933 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:21:01,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:21:01,935 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:21:01,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 00:21:01,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:21:01,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:21:01,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:21:01,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:21:01,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:21:01,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:21:01,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:21:01,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:21:01,983 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:21:02,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-13 00:21:02,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:21:02,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:21:02,021 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:21:02,025 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:21:02,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:21:02,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:21:02,035 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 00:21:02,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:21:02,046 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-13 00:21:02,046 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-13 00:21:02,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 00:21:02,083 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:21:02,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-13 00:21:02,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:21:02,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:21:02,113 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:21:02,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 00:21:02,115 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:21:02,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:21:02,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:21:02,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:21:02,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:21:02,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:21:02,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:21:02,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:21:02,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-13 00:21:02,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:21:02,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:21:02,173 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:21:02,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 00:21:02,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:21:02,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:21:02,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:21:02,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:21:02,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:21:02,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:21:02,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:21:02,218 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:21:02,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-13 00:21:02,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:21:02,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:21:02,249 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:21:02,250 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:21:02,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 00:21:02,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:21:02,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:21:02,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:21:02,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:21:02,268 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:21:02,268 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:21:02,303 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:21:02,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-13 00:21:02,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:21:02,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:21:02,344 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:21:02,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:21:02,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:21:02,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:21:02,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:21:02,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:21:02,363 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:21:02,364 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:21:02,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 00:21:02,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:21:02,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 00:21:02,412 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:21:02,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:21:02,414 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:21:02,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:21:02,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:21:02,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:21:02,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:21:02,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:21:02,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:21:02,433 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:21:02,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-13 00:21:02,442 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:21:02,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-13 00:21:02,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:21:02,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:21:02,467 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:21:02,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-13 00:21:02,469 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:21:02,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:21:02,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:21:02,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:21:02,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:21:02,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:21:02,488 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:21:02,514 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:21:02,611 INFO L443 ModelExtractionUtils]: Simplification made 38 calls to the SMT solver. [2021-10-13 00:21:02,611 INFO L444 ModelExtractionUtils]: 16 out of 52 variables were initially zero. Simplification set additionally 33 variables to zero. [2021-10-13 00:21:02,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:21:02,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:21:02,616 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:21:02,618 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:21:02,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-13 00:21:02,648 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:21:02,648 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:21:02,648 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_3, ULTIMATE.start_cstrncmp_~s1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_3 - 1*ULTIMATE.start_cstrncmp_~s1.offset Supporting invariants [] [2021-10-13 00:21:02,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-13 00:21:02,758 INFO L297 tatePredicateManager]: 22 out of 24 supporting invariants were superfluous and have been removed [2021-10-13 00:21:02,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:21:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:21:02,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-13 00:21:02,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:21:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:21:03,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-13 00:21:03,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:21:03,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:21:03,157 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2021-10-13 00:21:03,157 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7 Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:21:03,222 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 29 transitions. Complement of second has 8 states. [2021-10-13 00:21:03,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:21:03,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:21:03,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2021-10-13 00:21:03,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 14 letters. Loop has 5 letters. [2021-10-13 00:21:03,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:21:03,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 19 letters. Loop has 5 letters. [2021-10-13 00:21:03,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:21:03,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 14 letters. Loop has 10 letters. [2021-10-13 00:21:03,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:21:03,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 29 transitions. [2021-10-13 00:21:03,225 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:21:03,226 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2021-10-13 00:21:03,226 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:21:03,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:21:03,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:21:03,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:21:03,226 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:21:03,226 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:21:03,226 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:21:03,226 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 00:21:03,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:21:03,226 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:21:03,226 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:21:03,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:21:03 BoogieIcfgContainer [2021-10-13 00:21:03,233 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:21:03,234 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:21:03,234 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:21:03,234 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:21:03,234 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:20:52" (3/4) ... [2021-10-13 00:21:03,237 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:21:03,238 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:21:03,239 INFO L168 Benchmark]: Toolchain (without parser) took 11987.94 ms. Allocated memory was 123.7 MB in the beginning and 195.0 MB in the end (delta: 71.3 MB). Free memory was 84.8 MB in the beginning and 71.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 83.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:03,239 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 123.7 MB. Free memory is still 102.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:21:03,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 499.98 ms. Allocated memory is still 123.7 MB. Free memory was 84.7 MB in the beginning and 93.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:03,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.25 ms. Allocated memory is still 123.7 MB. Free memory was 93.0 MB in the beginning and 91.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:03,241 INFO L168 Benchmark]: Boogie Preprocessor took 30.53 ms. Allocated memory is still 123.7 MB. Free memory was 91.3 MB in the beginning and 89.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:21:03,241 INFO L168 Benchmark]: RCFGBuilder took 513.42 ms. Allocated memory is still 123.7 MB. Free memory was 89.6 MB in the beginning and 77.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:03,242 INFO L168 Benchmark]: BuchiAutomizer took 10871.94 ms. Allocated memory was 123.7 MB in the beginning and 195.0 MB in the end (delta: 71.3 MB). Free memory was 77.9 MB in the beginning and 72.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 78.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:03,242 INFO L168 Benchmark]: Witness Printer took 4.10 ms. Allocated memory is still 195.0 MB. Free memory was 72.4 MB in the beginning and 71.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:03,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 123.7 MB. Free memory is still 102.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 499.98 ms. Allocated memory is still 123.7 MB. Free memory was 84.7 MB in the beginning and 93.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.25 ms. Allocated memory is still 123.7 MB. Free memory was 93.0 MB in the beginning and 91.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.53 ms. Allocated memory is still 123.7 MB. Free memory was 91.3 MB in the beginning and 89.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 513.42 ms. Allocated memory is still 123.7 MB. Free memory was 89.6 MB in the beginning and 77.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10871.94 ms. Allocated memory was 123.7 MB in the beginning and 195.0 MB in the end (delta: 71.3 MB). Free memory was 77.9 MB in the beginning and 72.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 78.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.10 ms. Allocated memory is still 195.0 MB. Free memory was 72.4 MB in the beginning and 71.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[nondetString2] + -1 * nondetString2 and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * s1 and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.7s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 9.4s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 25.8ms AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 82 SDtfs, 132 SDslu, 175 SDs, 0 SdLazy, 131 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 132.5ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital212 mio100 ax110 hnf99 lsp81 ukn73 mio100 lsp50 div100 bol100 ite100 ukn100 eq173 hnf90 smp98 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 63ms VariablesStem: 6 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 00:21:03,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-13 00:21:03,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692555db-3acc-4217-b85b-1ba95c791d8c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...