./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrcspn_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/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_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrcspn_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/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 64bit --witnessprinter.graph.data.programhash 6e6bf2d6e706b2fafcc380eb0a4d60b5a7a1666b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:08:16,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:08:16,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:08:16,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:08:16,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:08:16,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:08:16,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:08:16,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:08:16,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:08:16,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:08:16,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:08:16,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:08:16,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:08:16,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:08:16,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:08:16,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:08:16,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:08:16,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:08:16,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:08:16,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:08:16,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:08:16,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:08:16,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:08:16,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:08:16,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:08:16,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:08:16,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:08:16,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:08:16,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:08:16,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:08:16,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:08:16,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:08:16,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:08:16,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:08:16,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:08:16,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:08:16,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:08:16,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:08:16,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:08:16,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:08:16,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:08:16,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 01:08:16,802 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:08:16,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:08:16,803 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:08:16,803 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:08:16,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:08:16,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:08:16,804 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:08:16,805 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:08:16,805 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:08:16,805 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:08:16,805 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:08:16,805 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:08:16,805 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:08:16,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:08:16,806 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:08:16,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:08:16,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:08:16,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:08:16,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:08:16,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:08:16,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:08:16,807 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:08:16,807 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:08:16,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:08:16,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:08:16,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:08:16,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:08:16,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:08:16,809 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:08:16,809 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:08:16,810 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_c2f929bb-235d-4254-aec5-3e80c6ca0025/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6bf2d6e706b2fafcc380eb0a4d60b5a7a1666b [2021-10-13 01:08:17,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:08:17,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:08:17,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:08:17,056 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:08:17,056 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:08:17,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-15/cstrcspn_reverse_alloca.i [2021-10-13 01:08:17,128 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/data/38593affa/2b83ae7f22c640e9913ead350e651338/FLAG4fd4de4c9 [2021-10-13 01:08:17,628 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:08:17,629 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/sv-benchmarks/c/termination-15/cstrcspn_reverse_alloca.i [2021-10-13 01:08:17,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/data/38593affa/2b83ae7f22c640e9913ead350e651338/FLAG4fd4de4c9 [2021-10-13 01:08:17,967 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/data/38593affa/2b83ae7f22c640e9913ead350e651338 [2021-10-13 01:08:17,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:08:17,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:08:17,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:08:17,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:08:17,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:08:17,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:08:17" (1/1) ... [2021-10-13 01:08:17,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d7fee43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:17, skipping insertion in model container [2021-10-13 01:08:17,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:08:17" (1/1) ... [2021-10-13 01:08:17,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:08:18,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:08:18,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:08:18,353 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:08:18,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:08:18,426 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:08:18,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:18 WrapperNode [2021-10-13 01:08:18,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:08:18,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:08:18,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:08:18,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:08:18,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:18" (1/1) ... [2021-10-13 01:08:18,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:18" (1/1) ... [2021-10-13 01:08:18,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:08:18,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:08:18,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:08:18,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:08:18,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:18" (1/1) ... [2021-10-13 01:08:18,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:18" (1/1) ... [2021-10-13 01:08:18,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:18" (1/1) ... [2021-10-13 01:08:18,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:18" (1/1) ... [2021-10-13 01:08:18,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:18" (1/1) ... [2021-10-13 01:08:18,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:18" (1/1) ... [2021-10-13 01:08:18,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:18" (1/1) ... [2021-10-13 01:08:18,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:08:18,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:08:18,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:08:18,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:08:18,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:18" (1/1) ... [2021-10-13 01:08:18,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:18,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:18,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:18,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:08:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 01:08:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 01:08:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:08:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 01:08:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:08:18,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:08:18,943 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:08:18,945 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-13 01:08:18,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:08:18 BoogieIcfgContainer [2021-10-13 01:08:18,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:08:18,948 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:08:18,948 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:08:18,957 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:08:18,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:08:18,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:08:17" (1/3) ... [2021-10-13 01:08:18,960 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4100b728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:08:18, skipping insertion in model container [2021-10-13 01:08:18,960 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:08:18,960 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:08:18" (2/3) ... [2021-10-13 01:08:18,972 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4100b728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:08:18, skipping insertion in model container [2021-10-13 01:08:18,972 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:08:18,973 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:08:18" (3/3) ... [2021-10-13 01:08:18,974 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrcspn_reverse_alloca.i [2021-10-13 01:08:19,031 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:08:19,031 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:08:19,031 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:08:19,031 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:08:19,032 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:08:19,032 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:08:19,032 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:08:19,032 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:08:19,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:19,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-13 01:08:19,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:08:19,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:08:19,077 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 01:08:19,077 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:08:19,077 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:08:19,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:19,082 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-13 01:08:19,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:08:19,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:08:19,082 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 01:08:19,083 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:08:19,089 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, 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~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 17#L382true assume !(main_~length1~0 < 1); 15#L382-2true assume !(main_~length2~0 < 1); 5#L385-1true call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 9#L369-4true [2021-10-13 01:08:19,091 INFO L793 eck$LassoCheckResult]: Loop: 9#L369-4true call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 16#L369-1true assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 7#L372-5true assume !true; 6#L372-6true call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 18#L374true assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 10#L369-3true cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset - 1;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 9#L369-4true [2021-10-13 01:08:19,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:19,099 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-10-13 01:08:19,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:19,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611230399] [2021-10-13 01:08:19,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:19,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:19,253 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:19,340 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:19,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:19,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2021-10-13 01:08:19,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:19,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951737826] [2021-10-13 01:08:19,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:19,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:19,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:19,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:19,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951737826] [2021-10-13 01:08:19,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951737826] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:08:19,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:08:19,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:08:19,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611129076] [2021-10-13 01:08:19,416 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:08:19,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:19,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 01:08:19,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 01:08:19,435 INFO L87 Difference]: Start difference. First operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:19,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:19,442 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-10-13 01:08:19,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 01:08:19,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2021-10-13 01:08:19,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-13 01:08:19,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2021-10-13 01:08:19,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-13 01:08:19,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-13 01:08:19,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2021-10-13 01:08:19,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:08:19,455 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-13 01:08:19,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2021-10-13 01:08:19,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-13 01:08:19,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:19,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-10-13 01:08:19,496 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-13 01:08:19,496 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-13 01:08:19,496 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:08:19,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-10-13 01:08:19,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-13 01:08:19,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:08:19,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:08:19,499 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 01:08:19,499 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:08:19,500 INFO L791 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 45#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, 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~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 52#L382 assume !(main_~length1~0 < 1); 56#L382-2 assume !(main_~length2~0 < 1); 46#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 47#L369-4 [2021-10-13 01:08:19,500 INFO L793 eck$LassoCheckResult]: Loop: 47#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 53#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 50#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 51#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 55#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210; 48#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 49#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 54#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset - 1;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 47#L369-4 [2021-10-13 01:08:19,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:19,501 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2021-10-13 01:08:19,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:19,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363099727] [2021-10-13 01:08:19,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:19,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:19,532 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:19,568 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:19,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:19,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2021-10-13 01:08:19,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:19,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656723430] [2021-10-13 01:08:19,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:19,570 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:19,584 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:19,596 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:19,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:19,597 INFO L82 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2021-10-13 01:08:19,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:19,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994435975] [2021-10-13 01:08:19,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:19,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:19,631 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:19,668 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:20,789 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:08:20,789 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:08:20,790 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:08:20,790 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:08:20,790 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:08:20,790 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:20,790 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:08:20,791 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:08:20,791 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_reverse_alloca.i_Iteration2_Lasso [2021-10-13 01:08:20,791 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:08:20,791 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:08:20,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:20,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:20,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:20,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:20,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:20,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:20,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:21,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:21,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:21,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:21,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:21,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:21,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:21,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:21,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:21,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:21,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:21,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:22,015 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:08:22,019 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:08:22,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:22,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:22,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:22,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 01:08:22,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:22,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:22,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:22,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:22,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:22,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:22,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:22,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:22,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:22,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-13 01:08:22,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:22,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:22,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:22,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 01:08:22,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:22,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:22,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:22,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:22,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:22,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:22,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:22,127 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:22,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:22,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:22,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:22,168 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:22,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:22,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:22,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:22,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:22,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:22,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:22,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:22,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:22,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 01:08:22,200 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:22,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:22,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:22,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:22,220 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:22,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 01:08:22,222 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:22,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:22,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:22,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:22,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:22,234 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:22,234 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:22,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:22,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:22,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:22,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:22,286 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:22,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:22,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:22,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:22,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:22,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:22,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:22,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:22,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:22,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 01:08:22,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:22,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:22,344 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:22,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:22,345 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:22,352 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 01:08:22,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:22,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:22,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:22,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:22,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:22,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:22,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:22,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 01:08:22,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:22,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:22,413 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:22,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:22,414 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:22,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 01:08:22,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:22,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:22,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:22,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:22,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:22,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:22,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:22,474 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:08:22,520 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-10-13 01:08:22,520 INFO L444 ModelExtractionUtils]: 15 out of 55 variables were initially zero. Simplification set additionally 37 variables to zero. [2021-10-13 01:08:22,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:22,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:22,523 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:22,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 01:08:22,573 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:08:22,605 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 01:08:22,605 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:08:22,605 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcspn_~sc1~0.offset) = 2*ULTIMATE.start_cstrcspn_~sc1~0.offset + 1 Supporting invariants [] [2021-10-13 01:08:22,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:22,712 INFO L297 tatePredicateManager]: 12 out of 12 supporting invariants were superfluous and have been removed [2021-10-13 01:08:22,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:22,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:08:22,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:08:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:22,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:08:22,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:08:22,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:22,939 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 01:08:22,940 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:22,971 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 28 transitions. Complement of second has 4 states. [2021-10-13 01:08:22,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 01:08:22,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:22,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2021-10-13 01:08:22,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2021-10-13 01:08:22,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:08:22,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2021-10-13 01:08:22,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:08:22,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2021-10-13 01:08:22,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:08:22,976 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2021-10-13 01:08:22,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:08:22,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2021-10-13 01:08:22,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-13 01:08:22,983 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-13 01:08:22,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2021-10-13 01:08:22,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:08:22,983 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-10-13 01:08:22,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2021-10-13 01:08:22,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-13 01:08:22,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:22,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2021-10-13 01:08:22,987 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-10-13 01:08:22,987 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-10-13 01:08:22,987 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:08:22,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2021-10-13 01:08:22,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:08:22,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:08:22,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:08:22,993 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:08:22,993 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:08:22,993 INFO L791 eck$LassoCheckResult]: Stem: 187#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 188#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, 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~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 195#L382 assume !(main_~length1~0 < 1); 202#L382-2 assume !(main_~length2~0 < 1); 185#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 186#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 197#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 191#L372-5 [2021-10-13 01:08:22,993 INFO L793 eck$LassoCheckResult]: Loop: 191#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 192#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 200#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset - 1;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 191#L372-5 [2021-10-13 01:08:22,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:22,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2021-10-13 01:08:22,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:22,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937134635] [2021-10-13 01:08:22,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:22,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:23,046 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:23,085 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:23,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:23,086 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2021-10-13 01:08:23,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:23,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525383762] [2021-10-13 01:08:23,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:23,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:23,097 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:23,103 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:23,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:23,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2021-10-13 01:08:23,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:23,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533320046] [2021-10-13 01:08:23,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:23,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:23,145 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:23,185 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:23,970 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:08:23,970 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:08:23,970 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:08:23,970 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:08:23,971 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:08:23,971 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:23,971 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:08:23,971 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:08:23,971 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_reverse_alloca.i_Iteration3_Lasso [2021-10-13 01:08:23,971 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:08:23,971 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:08:23,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:23,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:23,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:23,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:23,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:23,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:23,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:23,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:23,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:23,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:23,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:24,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:24,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:24,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:24,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:24,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:24,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:24,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:24,987 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:08:24,988 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:08:24,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:24,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:24,992 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:24,997 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:25,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:25,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:25,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 01:08:25,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,059 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 01:08:25,060 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:25,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:25,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,094 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 01:08:25,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:25,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:25,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:25,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,137 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,139 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 01:08:25,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:25,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:25,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:25,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,172 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 01:08:25,173 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:25,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:25,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:25,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,203 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 01:08:25,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,213 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:25,213 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:25,247 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,284 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 01:08:25,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:25,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:25,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:25,297 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,316 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,317 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 01:08:25,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:25,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:25,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:25,343 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,381 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,382 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 01:08:25,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,396 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:25,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:25,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:25,406 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,427 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,428 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 01:08:25,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:25,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:25,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:25,442 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,467 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 01:08:25,469 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 01:08:25,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,476 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:25,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,479 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:25,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:25,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,499 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 01:08:25,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:25,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:25,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:25,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,541 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,542 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 01:08:25,543 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,554 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:25,554 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:25,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,588 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 01:08:25,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,599 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:25,599 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:25,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-13 01:08:25,630 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,631 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 01:08:25,632 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,641 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:25,641 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:25,668 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,704 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 01:08:25,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,720 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:25,720 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:25,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:25,771 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,772 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,774 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,783 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-13 01:08:25,783 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2021-10-13 01:08:25,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 01:08:25,847 INFO L401 nArgumentSynthesizer]: We have 108 Motzkin's Theorem applications. [2021-10-13 01:08:25,847 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2021-10-13 01:08:25,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:25,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-13 01:08:25,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:25,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:25,967 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:25,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 01:08:25,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:25,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:25,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:25,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:25,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:25,989 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:25,989 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:26,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:26,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:26,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:26,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:26,052 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:26,057 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:26,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:26,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:26,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:26,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:26,076 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:26,076 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:26,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 01:08:26,100 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:08:26,122 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-13 01:08:26,123 INFO L444 ModelExtractionUtils]: 38 out of 49 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-13 01:08:26,123 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:26,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:26,124 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:26,125 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:08:26,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 01:08:26,149 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 01:08:26,149 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:08:26,149 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcspn_~s~0.offset) = 2*ULTIMATE.start_cstrcspn_~s~0.offset + 1 Supporting invariants [] [2021-10-13 01:08:26,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-13 01:08:26,210 INFO L297 tatePredicateManager]: 15 out of 15 supporting invariants were superfluous and have been removed [2021-10-13 01:08:26,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:26,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:08:26,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:08:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:26,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:08:26,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:08:26,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:26,321 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 01:08:26,321 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:26,348 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 57 transitions. Complement of second has 5 states. [2021-10-13 01:08:26,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 01:08:26,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:26,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2021-10-13 01:08:26,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 01:08:26,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:08:26,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-13 01:08:26,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:08:26,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-13 01:08:26,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:08:26,350 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2021-10-13 01:08:26,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:08:26,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2021-10-13 01:08:26,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-13 01:08:26,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-13 01:08:26,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2021-10-13 01:08:26,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:08:26,353 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-10-13 01:08:26,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2021-10-13 01:08:26,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-10-13 01:08:26,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:26,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2021-10-13 01:08:26,356 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-10-13 01:08:26,356 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-10-13 01:08:26,356 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 01:08:26,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2021-10-13 01:08:26,357 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:08:26,357 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:08:26,357 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:08:26,358 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:08:26,358 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:08:26,358 INFO L791 eck$LassoCheckResult]: Stem: 357#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 358#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, 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~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 367#L382 assume !(main_~length1~0 < 1); 376#L382-2 assume !(main_~length2~0 < 1); 359#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 360#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 368#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 377#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 380#L372-1 assume !cstrcspn_#t~short210; 378#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210; 361#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 362#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 372#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset - 1;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 369#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 371#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 363#L372-5 [2021-10-13 01:08:26,358 INFO L793 eck$LassoCheckResult]: Loop: 363#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 364#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 373#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset - 1;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 363#L372-5 [2021-10-13 01:08:26,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:26,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2021-10-13 01:08:26,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:26,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61217703] [2021-10-13 01:08:26,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:26,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:26,375 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:26,393 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:26,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:26,393 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2021-10-13 01:08:26,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:26,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967916366] [2021-10-13 01:08:26,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:26,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:26,398 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:26,403 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:26,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:26,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1999924968, now seen corresponding path program 1 times [2021-10-13 01:08:26,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:26,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523816758] [2021-10-13 01:08:26,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:26,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:26,489 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:26,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:08:26,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523816758] [2021-10-13 01:08:26,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523816758] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:08:26,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578538205] [2021-10-13 01:08:26,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:26,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:08:26,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:26,491 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:08:26,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-13 01:08:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:26,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 01:08:26,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:08:26,618 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-10-13 01:08:26,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 25 [2021-10-13 01:08:50,846 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:50,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578538205] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:08:50,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:08:50,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-10-13 01:08:50,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077890178] [2021-10-13 01:08:50,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:08:50,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 01:08:50,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=81, Unknown=2, NotChecked=0, Total=110 [2021-10-13 01:08:50,960 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:51,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:51,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:08:51,198 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2021-10-13 01:08:51,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 01:08:51,199 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 72 transitions. [2021-10-13 01:08:51,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:08:51,203 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 43 states and 53 transitions. [2021-10-13 01:08:51,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-13 01:08:51,203 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-13 01:08:51,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 53 transitions. [2021-10-13 01:08:51,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:08:51,203 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 53 transitions. [2021-10-13 01:08:51,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 53 transitions. [2021-10-13 01:08:51,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2021-10-13 01:08:51,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:51,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-10-13 01:08:51,207 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-13 01:08:51,207 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-13 01:08:51,208 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 01:08:51,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2021-10-13 01:08:51,208 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:08:51,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:08:51,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:08:51,209 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:08:51,209 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:08:51,210 INFO L791 eck$LassoCheckResult]: Stem: 513#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 514#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, 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~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 523#L382 assume !(main_~length1~0 < 1); 532#L382-2 assume !(main_~length2~0 < 1); 515#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 516#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 524#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 537#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 530#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 531#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210; 517#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 518#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 528#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset - 1;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 525#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 527#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 519#L372-5 [2021-10-13 01:08:51,210 INFO L793 eck$LassoCheckResult]: Loop: 519#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 520#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 529#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset - 1;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 519#L372-5 [2021-10-13 01:08:51,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:51,210 INFO L82 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2021-10-13 01:08:51,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:51,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214284229] [2021-10-13 01:08:51,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:51,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:51,228 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:51,250 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:51,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:51,250 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2021-10-13 01:08:51,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:51,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857209976] [2021-10-13 01:08:51,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:51,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:51,256 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:51,261 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:51,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:51,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2021-10-13 01:08:51,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:08:51,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316288482] [2021-10-13 01:08:51,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:08:51,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:08:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:51,286 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:08:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:08:51,312 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:08:52,756 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:08:52,756 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:08:52,756 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:08:52,756 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:08:52,756 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:08:52,756 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:52,757 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:08:52,757 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:08:52,757 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_reverse_alloca.i_Iteration5_Lasso [2021-10-13 01:08:52,757 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:08:52,757 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:08:52,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:52,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:52,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:53,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:08:55,220 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:08:55,221 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:08:55,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:55,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:55,224 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:55,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 01:08:55,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:55,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:55,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:55,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:55,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:55,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:55,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:55,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:55,265 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:55,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-13 01:08:55,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:55,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:55,284 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:55,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 01:08:55,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:55,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:55,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:08:55,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:55,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:55,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:55,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:08:55,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:08:55,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:55,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:55,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:55,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:55,313 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:55,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 01:08:55,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:55,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:55,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:55,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:55,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:55,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:55,326 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:55,330 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:55,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:55,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:55,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:55,349 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:55,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 01:08:55,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:55,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:55,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:55,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:55,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:55,369 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:55,369 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:55,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:55,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-13 01:08:55,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:55,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:55,400 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:55,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 01:08:55,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:55,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:55,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:55,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:55,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:55,410 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:55,410 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:55,424 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:08:55,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:55,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:55,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:55,443 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:55,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 01:08:55,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:08:55,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:08:55,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:08:55,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:08:55,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:08:55,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:08:55,473 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:08:55,499 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:08:55,591 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2021-10-13 01:08:55,591 INFO L444 ModelExtractionUtils]: 22 out of 58 variables were initially zero. Simplification set additionally 33 variables to zero. [2021-10-13 01:08:55,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:08:55,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:08:55,593 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:08:55,594 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:08:55,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 01:08:55,610 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 01:08:55,610 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:08:55,611 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1 + 2*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [] [2021-10-13 01:08:55,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:55,721 INFO L297 tatePredicateManager]: 29 out of 32 supporting invariants were superfluous and have been removed [2021-10-13 01:08:55,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:55,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 01:08:55,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:08:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:55,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 01:08:55,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:08:56,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:56,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:56,041 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-13 01:08:56,041 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:56,082 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) Result 46 states and 58 transitions. Complement of second has 6 states. [2021-10-13 01:08:56,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 01:08:56,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:56,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-13 01:08:56,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-13 01:08:56,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:08:56,083 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:08:56,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:56,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 01:08:56,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:08:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:56,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 01:08:56,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:08:56,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:56,321 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-13 01:08:56,321 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:56,363 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) Result 46 states and 58 transitions. Complement of second has 6 states. [2021-10-13 01:08:56,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 01:08:56,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:56,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-13 01:08:56,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-13 01:08:56,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:08:56,366 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:08:56,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:08:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:56,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 01:08:56,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:08:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:08:56,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 01:08:56,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:08:56,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:08:56,614 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-13 01:08:56,614 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:56,665 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) Result 45 states and 60 transitions. Complement of second has 5 states. [2021-10-13 01:08:56,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 01:08:56,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:08:56,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2021-10-13 01:08:56,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-13 01:08:56,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:08:56,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2021-10-13 01:08:56,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:08:56,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2021-10-13 01:08:56,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:08:56,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 60 transitions. [2021-10-13 01:08:56,670 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:08:56,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 0 states and 0 transitions. [2021-10-13 01:08:56,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:08:56,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:08:56,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:08:56,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:08:56,671 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:08:56,671 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:08:56,671 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:08:56,671 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 01:08:56,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:08:56,672 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:08:56,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 01:08:56,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:08:56 BoogieIcfgContainer [2021-10-13 01:08:56,677 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:08:56,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:08:56,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:08:56,678 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:08:56,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:08:18" (3/4) ... [2021-10-13 01:08:56,681 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:08:56,681 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:08:56,682 INFO L168 Benchmark]: Toolchain (without parser) took 38711.48 ms. Allocated memory was 94.4 MB in the beginning and 155.2 MB in the end (delta: 60.8 MB). Free memory was 62.3 MB in the beginning and 71.5 MB in the end (delta: -9.2 MB). Peak memory consumption was 52.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:56,682 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:08:56,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.02 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 62.2 MB in the beginning and 95.1 MB in the end (delta: -32.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:56,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.66 ms. Allocated memory is still 127.9 MB. Free memory was 95.1 MB in the beginning and 93.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:56,684 INFO L168 Benchmark]: Boogie Preprocessor took 27.87 ms. Allocated memory is still 127.9 MB. Free memory was 93.0 MB in the beginning and 91.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:56,684 INFO L168 Benchmark]: RCFGBuilder took 446.68 ms. Allocated memory is still 127.9 MB. Free memory was 91.4 MB in the beginning and 80.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:56,685 INFO L168 Benchmark]: BuchiAutomizer took 37729.02 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 79.9 MB in the beginning and 71.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:56,685 INFO L168 Benchmark]: Witness Printer took 3.42 ms. Allocated memory is still 155.2 MB. Free memory is still 71.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:08:56,687 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 455.02 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 62.2 MB in the beginning and 95.1 MB in the end (delta: -32.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.66 ms. Allocated memory is still 127.9 MB. Free memory was 95.1 MB in the beginning and 93.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.87 ms. Allocated memory is still 127.9 MB. Free memory was 93.0 MB in the beginning and 91.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 446.68 ms. Allocated memory is still 127.9 MB. Free memory was 91.4 MB in the beginning and 80.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 37729.02 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 79.9 MB in the beginning and 71.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.42 ms. Allocated memory is still 155.2 MB. Free memory is still 71.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * sc1 + 1 and consists of 3 locations. One deterministic module has affine ranking function 2 * s + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * s + unknown-#length-unknown[nondetString2] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.6s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 35.8s. Construction of modules took 0.1s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 35.2ms AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 28 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 108 SDtfs, 111 SDslu, 119 SDs, 0 SdLazy, 154 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 180.5ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital286 mio100 ax100 hnf100 lsp105 ukn86 mio100 lsp40 div113 bol100 ite100 ukn100 eq183 hnf85 smp97 dnf706 smp24 tf100 neg96 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 176ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 108 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 01:08:56,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-13 01:08:56,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f929bb-235d-4254-aec5-3e80c6ca0025/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...