./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8e64c1324249ca9b9e3c019cfc2046542af7b26 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:23:37,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:23:37,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:23:37,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:23:37,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:23:37,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:23:37,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:23:37,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:23:37,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:23:37,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:23:37,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:23:37,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:23:37,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:23:37,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:23:37,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:23:37,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:23:37,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:23:37,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:23:37,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:23:37,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:23:37,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:23:37,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:23:37,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:23:37,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:23:37,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:23:37,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:23:37,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:23:37,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:23:37,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:23:37,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:23:37,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:23:37,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:23:37,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:23:37,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:23:37,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:23:37,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:23:37,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:23:37,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:23:37,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:23:37,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:23:37,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:23:37,850 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 20:23:37,893 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:23:37,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:23:37,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:23:37,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:23:37,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:23:37,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:23:37,897 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:23:37,897 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 20:23:37,898 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 20:23:37,898 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 20:23:37,899 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 20:23:37,899 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 20:23:37,899 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 20:23:37,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:23:37,900 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 20:23:37,900 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 20:23:37,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:23:37,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 20:23:37,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:23:37,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 20:23:37,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 20:23:37,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 20:23:37,902 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 20:23:37,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:23:37,902 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 20:23:37,902 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:23:37,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 20:23:37,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:23:37,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:23:37,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:23:37,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:23:37,905 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:23:37,906 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 20:23:37,906 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_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8e64c1324249ca9b9e3c019cfc2046542af7b26 [2021-10-15 20:23:38,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:23:38,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:23:38,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:23:38,180 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:23:38,181 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:23:38,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i [2021-10-15 20:23:38,279 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/data/8af812e34/0838173170a245be969f4fee5b178611/FLAG035b684bb [2021-10-15 20:23:38,783 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:23:38,784 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/sv-benchmarks/c/array-memsafety/add_last-alloca-1.i [2021-10-15 20:23:38,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/data/8af812e34/0838173170a245be969f4fee5b178611/FLAG035b684bb [2021-10-15 20:23:39,096 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/data/8af812e34/0838173170a245be969f4fee5b178611 [2021-10-15 20:23:39,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:23:39,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:23:39,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:23:39,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:23:39,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:23:39,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:23:39" (1/1) ... [2021-10-15 20:23:39,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e10c5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:23:39, skipping insertion in model container [2021-10-15 20:23:39,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:23:39" (1/1) ... [2021-10-15 20:23:39,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:23:39,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:23:39,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:23:39,529 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:23:39,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:23:39,622 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:23:39,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:23:39 WrapperNode [2021-10-15 20:23:39,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:23:39,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:23:39,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:23:39,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:23:39,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:23:39" (1/1) ... [2021-10-15 20:23:39,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:23:39" (1/1) ... [2021-10-15 20:23:39,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:23:39,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:23:39,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:23:39,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:23:39,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:23:39" (1/1) ... [2021-10-15 20:23:39,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:23:39" (1/1) ... [2021-10-15 20:23:39,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:23:39" (1/1) ... [2021-10-15 20:23:39,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:23:39" (1/1) ... [2021-10-15 20:23:39,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:23:39" (1/1) ... [2021-10-15 20:23:39,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:23:39" (1/1) ... [2021-10-15 20:23:39,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:23:39" (1/1) ... [2021-10-15 20:23:39,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:23:39,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:23:39,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:23:39,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:23:39,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:23:39" (1/1) ... [2021-10-15 20:23:39,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:39,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:39,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:39,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 20:23:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 20:23:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 20:23:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:23:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 20:23:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:23:39,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:23:40,022 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:23:40,022 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-15 20:23:40,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:23:40 BoogieIcfgContainer [2021-10-15 20:23:40,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:23:40,025 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 20:23:40,025 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 20:23:40,028 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 20:23:40,029 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:23:40,029 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 08:23:39" (1/3) ... [2021-10-15 20:23:40,030 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b1b2570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:23:40, skipping insertion in model container [2021-10-15 20:23:40,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:23:40,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:23:39" (2/3) ... [2021-10-15 20:23:40,031 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b1b2570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:23:40, skipping insertion in model container [2021-10-15 20:23:40,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:23:40,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:23:40" (3/3) ... [2021-10-15 20:23:40,033 INFO L389 chiAutomizerObserver]: Analyzing ICFG add_last-alloca-1.i [2021-10-15 20:23:40,078 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 20:23:40,078 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 20:23:40,078 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 20:23:40,078 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 20:23:40,078 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 20:23:40,078 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 20:23:40,078 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 20:23:40,078 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 20:23:40,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:23:40,112 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-15 20:23:40,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:23:40,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:23:40,118 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-15 20:23:40,119 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 20:23:40,119 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 20:23:40,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:23:40,121 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-15 20:23:40,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:23:40,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:23:40,122 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-15 20:23:40,122 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 20:23:40,128 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_~k~0, main_#t~mem8, main_#t~mem9, main_#t~post10.base, main_#t~post10.offset, main_#t~mem6, main_#t~mem7, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset, main_~a~0.base, main_~a~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 11#L515true assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 8#L515-2true call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 14#L517true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~a~0.base, main_~a~0.offset := main_~arr~0.base, main_~arr~0.offset;main_~k~0 := 0; 6#L520-3true [2021-10-15 20:23:40,129 INFO L793 eck$LassoCheckResult]: Loop: 6#L520-3true assume !!(main_~k~0 < main_~length~0);call write~int(main_#t~nondet5, main_~arr~0.base, main_~arr~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet5; 12#L520-2true main_#t~post4 := main_~k~0;main_~k~0 := 1 + main_#t~post4;havoc main_#t~post4; 6#L520-3true [2021-10-15 20:23:40,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:23:40,135 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-10-15 20:23:40,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:23:40,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854367135] [2021-10-15 20:23:40,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:23:40,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:23:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:40,235 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:23:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:40,267 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:23:40,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:23:40,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2021-10-15 20:23:40,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:23:40,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142653366] [2021-10-15 20:23:40,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:23:40,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:23:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:40,282 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:23:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:40,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:23:40,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:23:40,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2021-10-15 20:23:40,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:23:40,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187351763] [2021-10-15 20:23:40,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:23:40,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:23:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:40,318 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:23:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:40,340 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:23:40,745 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:23:40,746 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:23:40,746 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:23:40,746 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:23:40,746 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:23:40,747 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:40,747 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:23:40,762 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:23:40,762 INFO L133 ssoRankerPreferences]: Filename of dumped script: add_last-alloca-1.i_Iteration1_Lasso [2021-10-15 20:23:40,763 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:23:40,763 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:23:40,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:40,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:41,192 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:23:41,196 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:23:41,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:41,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:41,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:41,205 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 [2021-10-15 20:23:41,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:41,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:41,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:41,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:41,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:41,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:41,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:41,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 20:23:41,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:41,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:41,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:41,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:41,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:41,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 20:23:41,289 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 [2021-10-15 20:23:41,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:41,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:41,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:41,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:41,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:41,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:41,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:41,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:41,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-15 20:23:41,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:41,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:41,337 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:41,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 20:23:41,339 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 [2021-10-15 20:23:41,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:41,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:41,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:41,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:41,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:41,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:41,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:41,359 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:41,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:41,381 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:41,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:41,382 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:41,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 20:23:41,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:23:41,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:41,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:41,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:41,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:41,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:41,395 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:41,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:41,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:41,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-15 20:23:41,419 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:41,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:41,419 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:41,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 20:23:41,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:23:41,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:41,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:41,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:41,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:41,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:23:41,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:23:41,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:41,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:41,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:41,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:41,499 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:41,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 20:23:41,504 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 [2021-10-15 20:23:41,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:41,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:41,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:41,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:41,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:23:41,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:23:41,531 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:41,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:41,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:41,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:41,568 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:41,575 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 [2021-10-15 20:23:41,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:41,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:41,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:41,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:41,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:41,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:41,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:41,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 20:23:41,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:41,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:41,639 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:41,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:41,640 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:41,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 20:23:41,641 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 [2021-10-15 20:23:41,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:41,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:41,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:41,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:41,652 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:23:41,652 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:23:41,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:41,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:41,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:41,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:41,715 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:41,721 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 [2021-10-15 20:23:41,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:41,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:41,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:41,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:41,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:41,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:41,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:41,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 20:23:41,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:41,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:41,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:41,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:41,771 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:41,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 20:23:41,778 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 [2021-10-15 20:23:41,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:41,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:41,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:41,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:41,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:41,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:41,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:41,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:41,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:41,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:41,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:41,807 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:41,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 20:23:41,808 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 [2021-10-15 20:23:41,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:41,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:41,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:41,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:41,820 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:23:41,820 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:23:41,855 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:41,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:41,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:41,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:41,891 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:41,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 20:23:41,897 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 [2021-10-15 20:23:41,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:41,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:41,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:41,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:41,927 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:23:41,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:23:41,950 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 20:23:42,009 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-15 20:23:42,009 INFO L444 ModelExtractionUtils]: 3 out of 25 variables were initially zero. Simplification set additionally 19 variables to zero. [2021-10-15 20:23:42,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:42,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:42,035 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:42,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-15 20:23:42,087 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 20:23:42,109 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-15 20:23:42,109 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 20:23:42,110 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~k~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2021-10-15 20:23:42,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-10-15 20:23:42,192 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-15 20:23:42,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:23:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:23:42,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 20:23:42,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:23:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:23:42,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 20:23:42,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:23:42,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:23:42,334 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 [2021-10-15 20:23:42,336 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:23:42,397 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 41 transitions. Complement of second has 7 states. [2021-10-15 20:23:42,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-15 20:23:42,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:23:42,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2021-10-15 20:23:42,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-15 20:23:42,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:23:42,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-15 20:23:42,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:23:42,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-15 20:23:42,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:23:42,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 41 transitions. [2021-10-15 20:23:42,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 20:23:42,414 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 11 states and 14 transitions. [2021-10-15 20:23:42,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-15 20:23:42,415 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-15 20:23:42,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2021-10-15 20:23:42,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:23:42,416 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-15 20:23:42,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2021-10-15 20:23:42,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-15 20:23:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 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) [2021-10-15 20:23:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-15 20:23:42,441 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-15 20:23:42,441 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-15 20:23:42,441 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 20:23:42,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-15 20:23:42,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 20:23:42,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:23:42,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:23:42,444 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 20:23:42,444 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 20:23:42,444 INFO L791 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 107#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_~k~0, main_#t~mem8, main_#t~mem9, main_#t~post10.base, main_#t~post10.offset, main_#t~mem6, main_#t~mem7, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset, main_~a~0.base, main_~a~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 113#L515 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 111#L515-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 112#L517 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~a~0.base, main_~a~0.offset := main_~arr~0.base, main_~arr~0.offset;main_~k~0 := 0; 108#L520-3 assume !(main_~k~0 < main_~length~0); 105#L525-2 [2021-10-15 20:23:42,445 INFO L793 eck$LassoCheckResult]: Loop: 105#L525-2 call main_#t~mem6 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4); 104#L525 assume !!(main_#t~mem6 != main_#t~mem7);havoc main_#t~mem6;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4);call write~int(main_#t~mem8 + main_#t~mem9, main_~a~0.base, main_~a~0.offset, 4);havoc main_#t~mem8;havoc main_#t~mem9;main_#t~post10.base, main_#t~post10.offset := main_~a~0.base, main_~a~0.offset;main_~a~0.base, main_~a~0.offset := main_#t~post10.base, 4 + main_#t~post10.offset;havoc main_#t~post10.base, main_#t~post10.offset; 105#L525-2 [2021-10-15 20:23:42,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:23:42,446 INFO L82 PathProgramCache]: Analyzing trace with hash 889568363, now seen corresponding path program 1 times [2021-10-15 20:23:42,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:23:42,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937728816] [2021-10-15 20:23:42,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:23:42,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:23:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:23:42,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:23:42,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:23:42,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937728816] [2021-10-15 20:23:42,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937728816] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:23:42,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:23:42,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:23:42,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366965148] [2021-10-15 20:23:42,555 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:23:42,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:23:42,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 1 times [2021-10-15 20:23:42,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:23:42,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310428968] [2021-10-15 20:23:42,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:23:42,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:23:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:42,565 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:23:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:42,575 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:23:42,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:23:42,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 20:23:42,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-15 20:23:42,674 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2021-10-15 20:23:42,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:23:42,700 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-10-15 20:23:42,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 20:23:42,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-10-15 20:23:42,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 20:23:42,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 13 transitions. [2021-10-15 20:23:42,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-15 20:23:42,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-15 20:23:42,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-10-15 20:23:42,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:23:42,704 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-15 20:23:42,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-10-15 20:23:42,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-15 20:23:42,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:23:42,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-10-15 20:23:42,707 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-15 20:23:42,707 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-15 20:23:42,707 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 20:23:42,708 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2021-10-15 20:23:42,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 20:23:42,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:23:42,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:23:42,711 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:23:42,712 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 20:23:42,713 INFO L791 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 135#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_~k~0, main_#t~mem8, main_#t~mem9, main_#t~post10.base, main_#t~post10.offset, main_#t~mem6, main_#t~mem7, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset, main_~a~0.base, main_~a~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 141#L515 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 139#L515-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 140#L517 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~a~0.base, main_~a~0.offset := main_~arr~0.base, main_~arr~0.offset;main_~k~0 := 0; 136#L520-3 assume !!(main_~k~0 < main_~length~0);call write~int(main_#t~nondet5, main_~arr~0.base, main_~arr~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet5; 137#L520-2 main_#t~post4 := main_~k~0;main_~k~0 := 1 + main_#t~post4;havoc main_#t~post4; 138#L520-3 assume !(main_~k~0 < main_~length~0); 133#L525-2 [2021-10-15 20:23:42,713 INFO L793 eck$LassoCheckResult]: Loop: 133#L525-2 call main_#t~mem6 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4); 132#L525 assume !!(main_#t~mem6 != main_#t~mem7);havoc main_#t~mem6;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4);call write~int(main_#t~mem8 + main_#t~mem9, main_~a~0.base, main_~a~0.offset, 4);havoc main_#t~mem8;havoc main_#t~mem9;main_#t~post10.base, main_#t~post10.offset := main_~a~0.base, main_~a~0.offset;main_~a~0.base, main_~a~0.offset := main_#t~post10.base, 4 + main_#t~post10.offset;havoc main_#t~post10.base, main_#t~post10.offset; 133#L525-2 [2021-10-15 20:23:42,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:23:42,713 INFO L82 PathProgramCache]: Analyzing trace with hash 176707625, now seen corresponding path program 1 times [2021-10-15 20:23:42,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:23:42,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425779046] [2021-10-15 20:23:42,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:23:42,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:23:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:42,750 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:23:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:42,778 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:23:42,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:23:42,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 2 times [2021-10-15 20:23:42,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:23:42,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883155402] [2021-10-15 20:23:42,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:23:42,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:23:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:42,799 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:23:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:42,812 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:23:42,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:23:42,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1982663218, now seen corresponding path program 1 times [2021-10-15 20:23:42,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:23:42,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515711753] [2021-10-15 20:23:42,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:23:42,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:23:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:23:43,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:23:43,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:23:43,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515711753] [2021-10-15 20:23:43,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515711753] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:23:43,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387585286] [2021-10-15 20:23:43,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:23:43,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:23:43,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:43,204 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:23:43,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-15 20:23:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:23:43,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-15 20:23:43,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:23:43,402 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 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-15 20:23:43,530 INFO L354 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2021-10-15 20:23:43,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 18 [2021-10-15 20:23:43,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:23:43,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387585286] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:23:43,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:23:43,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-10-15 20:23:43,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950229368] [2021-10-15 20:23:43,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:23:43,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-15 20:23:43,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-10-15 20:23:43,645 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:23:43,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:23:43,785 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-10-15 20:23:43,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-15 20:23:43,786 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2021-10-15 20:23:43,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 20:23:43,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 15 transitions. [2021-10-15 20:23:43,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-15 20:23:43,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-15 20:23:43,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2021-10-15 20:23:43,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:23:43,791 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-10-15 20:23:43,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2021-10-15 20:23:43,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-10-15 20:23:43,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:23:43,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-10-15 20:23:43,793 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-10-15 20:23:43,793 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-10-15 20:23:43,793 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-15 20:23:43,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2021-10-15 20:23:43,794 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 20:23:43,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:23:43,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:23:43,794 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-10-15 20:23:43,794 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 20:23:43,795 INFO L791 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 209#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_~k~0, main_#t~mem8, main_#t~mem9, main_#t~post10.base, main_#t~post10.offset, main_#t~mem6, main_#t~mem7, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset, main_~a~0.base, main_~a~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 216#L515 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 214#L515-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 215#L517 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~a~0.base, main_~a~0.offset := main_~arr~0.base, main_~arr~0.offset;main_~k~0 := 0; 210#L520-3 assume !!(main_~k~0 < main_~length~0);call write~int(main_#t~nondet5, main_~arr~0.base, main_~arr~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet5; 211#L520-2 main_#t~post4 := main_~k~0;main_~k~0 := 1 + main_#t~post4;havoc main_#t~post4; 212#L520-3 assume !!(main_~k~0 < main_~length~0);call write~int(main_#t~nondet5, main_~arr~0.base, main_~arr~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet5; 213#L520-2 main_#t~post4 := main_~k~0;main_~k~0 := 1 + main_#t~post4;havoc main_#t~post4; 217#L520-3 assume !(main_~k~0 < main_~length~0); 207#L525-2 [2021-10-15 20:23:43,795 INFO L793 eck$LassoCheckResult]: Loop: 207#L525-2 call main_#t~mem6 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4); 206#L525 assume !!(main_#t~mem6 != main_#t~mem7);havoc main_#t~mem6;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4);call write~int(main_#t~mem8 + main_#t~mem9, main_~a~0.base, main_~a~0.offset, 4);havoc main_#t~mem8;havoc main_#t~mem9;main_#t~post10.base, main_#t~post10.offset := main_~a~0.base, main_~a~0.offset;main_~a~0.base, main_~a~0.offset := main_#t~post10.base, 4 + main_#t~post10.offset;havoc main_#t~post10.base, main_#t~post10.offset; 207#L525-2 [2021-10-15 20:23:43,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:23:43,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1982661529, now seen corresponding path program 2 times [2021-10-15 20:23:43,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:23:43,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256868112] [2021-10-15 20:23:43,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:23:43,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:23:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:43,823 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:23:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:43,845 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:23:43,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:23:43,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1958, now seen corresponding path program 3 times [2021-10-15 20:23:43,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:23:43,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494390529] [2021-10-15 20:23:43,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:23:43,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:23:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:43,851 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:23:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:43,869 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:23:43,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:23:43,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1627751052, now seen corresponding path program 2 times [2021-10-15 20:23:43,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:23:43,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348727541] [2021-10-15 20:23:43,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:23:43,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:23:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:43,905 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:23:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:23:43,930 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:23:44,261 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:23:44,261 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:23:44,261 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:23:44,261 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:23:44,261 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:23:44,261 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:44,261 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:23:44,262 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:23:44,262 INFO L133 ssoRankerPreferences]: Filename of dumped script: add_last-alloca-1.i_Iteration4_Lasso [2021-10-15 20:23:44,262 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:23:44,262 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:23:44,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:23:44,776 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:23:44,776 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:23:44,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:44,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:44,777 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:44,783 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 [2021-10-15 20:23:44,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-15 20:23:44,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:44,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:44,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:44,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:44,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:44,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:44,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:44,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:44,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:44,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:44,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:44,840 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:44,846 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 [2021-10-15 20:23:44,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:44,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:44,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:44,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:44,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:44,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:44,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:44,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-15 20:23:44,875 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:44,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:44,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:44,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:44,916 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:44,924 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 [2021-10-15 20:23:44,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:44,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:44,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:44,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:44,935 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:23:44,935 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:23:44,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-15 20:23:44,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:44,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:44,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:44,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:44,984 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:44,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:23:45,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:45,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:45,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:45,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:45,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:45,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:45,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:45,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-15 20:23:45,013 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:45,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:45,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:45,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:45,051 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:45,061 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 [2021-10-15 20:23:45,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:45,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:45,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:45,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:45,072 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:23:45,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:23:45,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-15 20:23:45,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:45,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:45,123 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:45,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:45,124 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:45,132 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 [2021-10-15 20:23:45,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:45,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:45,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:45,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:45,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:45,144 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:45,144 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:45,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-15 20:23:45,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:45,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:45,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:45,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:45,193 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:45,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-15 20:23:45,199 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 [2021-10-15 20:23:45,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:45,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:45,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:45,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:45,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:45,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:45,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:45,223 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:45,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:45,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:45,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:45,264 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:45,267 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 [2021-10-15 20:23:45,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:45,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:45,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:45,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:45,278 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:23:45,279 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:23:45,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-15 20:23:45,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:45,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:45,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:45,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:45,332 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:45,334 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 [2021-10-15 20:23:45,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-15 20:23:45,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:45,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:45,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:45,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:45,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:45,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:45,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:45,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:45,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-15 20:23:45,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:45,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:45,364 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:45,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-15 20:23:45,365 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 [2021-10-15 20:23:45,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:45,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:23:45,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:45,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:45,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:45,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:23:45,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:23:45,373 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:45,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:45,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:45,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:45,394 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:45,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-15 20:23:45,395 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 [2021-10-15 20:23:45,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:45,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:45,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:45,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:45,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:23:45,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:23:45,442 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:23:45,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:45,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:45,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:45,475 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:45,484 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 [2021-10-15 20:23:45,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-15 20:23:45,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:23:45,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:23:45,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:23:45,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:23:45,500 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:23:45,500 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:23:45,523 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 20:23:45,554 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-15 20:23:45,554 INFO L444 ModelExtractionUtils]: 4 out of 28 variables were initially zero. Simplification set additionally 21 variables to zero. [2021-10-15 20:23:45,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:23:45,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:23:45,556 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:23:45,558 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 20:23:45,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-15 20:23:45,568 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-15 20:23:45,568 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 20:23:45,568 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0.offset, v_rep(select #length ULTIMATE.start_main_~arr~0.base)_2) = -1*ULTIMATE.start_main_~a~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~arr~0.base)_2 Supporting invariants [] [2021-10-15 20:23:45,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:45,598 INFO L297 tatePredicateManager]: 4 out of 6 supporting invariants were superfluous and have been removed [2021-10-15 20:23:45,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:23:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:23:45,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-15 20:23:45,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:23:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:23:45,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-15 20:23:45,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:23:45,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:23:45,763 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-15 20:23:45,763 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2021-10-15 20:23:45,797 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 14 states and 17 transitions. Complement of second has 6 states. [2021-10-15 20:23:45,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-15 20:23:45,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2021-10-15 20:23:45,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-10-15 20:23:45,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-15 20:23:45,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:23:45,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 12 letters. Loop has 2 letters. [2021-10-15 20:23:45,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:23:45,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-15 20:23:45,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:23:45,799 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2021-10-15 20:23:45,799 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:23:45,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-10-15 20:23:45,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 20:23:45,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 20:23:45,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 20:23:45,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:23:45,800 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:23:45,800 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:23:45,800 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:23:45,800 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-15 20:23:45,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 20:23:45,800 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:23:45,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 20:23:45,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 08:23:45 BoogieIcfgContainer [2021-10-15 20:23:45,806 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 20:23:45,806 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:23:45,807 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:23:45,807 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:23:45,807 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:23:40" (3/4) ... [2021-10-15 20:23:45,810 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 20:23:45,810 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:23:45,811 INFO L168 Benchmark]: Toolchain (without parser) took 6710.60 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 91.9 MB in the beginning and 63.4 MB in the end (delta: 28.5 MB). Peak memory consumption was 51.9 MB. Max. memory is 16.1 GB. [2021-10-15 20:23:45,811 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory was 45.4 MB in the beginning and 45.4 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:23:45,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.34 ms. Allocated memory is still 125.8 MB. Free memory was 91.9 MB in the beginning and 94.3 MB in the end (delta: -2.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-15 20:23:45,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.61 ms. Allocated memory is still 125.8 MB. Free memory was 94.3 MB in the beginning and 92.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:23:45,813 INFO L168 Benchmark]: Boogie Preprocessor took 22.67 ms. Allocated memory is still 125.8 MB. Free memory was 92.6 MB in the beginning and 91.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:23:45,813 INFO L168 Benchmark]: RCFGBuilder took 328.74 ms. Allocated memory is still 125.8 MB. Free memory was 91.1 MB in the beginning and 81.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 20:23:45,814 INFO L168 Benchmark]: BuchiAutomizer took 5781.13 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 81.4 MB in the beginning and 63.4 MB in the end (delta: 18.0 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. [2021-10-15 20:23:45,814 INFO L168 Benchmark]: Witness Printer took 3.46 ms. Allocated memory is still 151.0 MB. Free memory is still 63.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:23:45,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory was 45.4 MB in the beginning and 45.4 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 518.34 ms. Allocated memory is still 125.8 MB. Free memory was 91.9 MB in the beginning and 94.3 MB in the end (delta: -2.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.61 ms. Allocated memory is still 125.8 MB. Free memory was 94.3 MB in the beginning and 92.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.67 ms. Allocated memory is still 125.8 MB. Free memory was 92.6 MB in the beginning and 91.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 328.74 ms. Allocated memory is still 125.8 MB. Free memory was 91.1 MB in the beginning and 81.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5781.13 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 81.4 MB in the beginning and 63.4 MB in the end (delta: 18.0 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.46 ms. Allocated memory is still 151.0 MB. Free memory is still 63.4 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 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length + -1 * k and consists of 5 locations. One deterministic module has affine ranking function -1 * a + unknown-#length-unknown[arr] and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 5.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 15.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 29 SDtfs, 61 SDslu, 19 SDs, 0 SdLazy, 105 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 101.2ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital143 mio100 ax113 hnf99 lsp84 ukn77 mio100 lsp61 div100 bol100 ite100 ukn100 eq168 hnf91 smp100 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 20:23:45,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-15 20:23:46,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-10-15 20:23:46,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119d3b4c-c7e4-439d-8c48-0bc1f8a2e31e/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...