./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/array14_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/array14_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a0f9dc1e3a944fe0c87fb9c3f72dec5466e715e61eb5b701f6540feca3c935ad ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:50:40,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:50:40,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:50:40,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:50:40,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:50:40,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:50:40,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:50:40,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:50:40,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:50:40,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:50:40,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:50:40,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:50:40,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:50:40,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:50:40,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:50:40,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:50:40,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:50:40,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:50:40,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:50:40,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:50:40,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:50:40,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:50:40,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:50:40,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:50:40,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:50:40,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:50:40,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:50:40,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:50:40,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:50:40,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:50:40,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:50:40,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:50:40,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:50:40,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:50:40,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:50:40,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:50:40,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:50:40,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:50:40,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:50:40,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:50:40,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:50:40,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 22:50:40,837 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:50:40,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:50:40,839 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:50:40,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:50:40,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:50:40,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:50:40,841 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:50:40,841 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 22:50:40,842 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 22:50:40,842 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 22:50:40,843 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 22:50:40,843 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 22:50:40,844 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 22:50:40,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:50:40,844 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:50:40,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:50:40,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:50:40,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 22:50:40,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 22:50:40,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 22:50:40,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:50:40,846 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 22:50:40,846 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:50:40,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 22:50:40,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:50:40,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:50:40,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:50:40,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:50:40,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:50:40,851 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 22:50:40,851 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_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0f9dc1e3a944fe0c87fb9c3f72dec5466e715e61eb5b701f6540feca3c935ad [2021-10-28 22:50:41,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:50:41,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:50:41,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:50:41,167 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:50:41,168 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:50:41,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-15/array14_alloca.i [2021-10-28 22:50:41,234 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/data/30a3e9087/6d2ca80dff13408088dcf4a3b8e79cae/FLAGc88b30a51 [2021-10-28 22:50:41,783 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:50:41,784 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/sv-benchmarks/c/termination-15/array14_alloca.i [2021-10-28 22:50:41,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/data/30a3e9087/6d2ca80dff13408088dcf4a3b8e79cae/FLAGc88b30a51 [2021-10-28 22:50:42,119 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/data/30a3e9087/6d2ca80dff13408088dcf4a3b8e79cae [2021-10-28 22:50:42,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:50:42,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:50:42,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:50:42,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:50:42,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:50:42,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73df962c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42, skipping insertion in model container [2021-10-28 22:50:42,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:50:42,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:50:42,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:50:42,576 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:50:42,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:50:42,655 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:50:42,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42 WrapperNode [2021-10-28 22:50:42,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:50:42,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:50:42,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:50:42,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:50:42,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:50:42,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:50:42,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:50:42,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:50:42,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:50:42,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:50:42,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:50:42,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:50:42,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:42,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:42,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:42,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 22:50:42,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 22:50:42,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:50:42,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:50:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:50:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:50:42,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:50:43,092 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:50:43,104 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 22:50:43,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:50:43 BoogieIcfgContainer [2021-10-28 22:50:43,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:50:43,108 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 22:50:43,108 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 22:50:43,111 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 22:50:43,120 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:50:43,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 10:50:42" (1/3) ... [2021-10-28 22:50:43,132 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@773368de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:50:43, skipping insertion in model container [2021-10-28 22:50:43,132 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:50:43,132 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (2/3) ... [2021-10-28 22:50:43,132 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@773368de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:50:43, skipping insertion in model container [2021-10-28 22:50:43,133 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:50:43,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:50:43" (3/3) ... [2021-10-28 22:50:43,134 INFO L389 chiAutomizerObserver]: Analyzing ICFG array14_alloca.i [2021-10-28 22:50:43,178 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 22:50:43,178 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 22:50:43,178 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 22:50:43,178 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 22:50:43,178 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 22:50:43,178 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 22:50:43,179 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 22:50:43,179 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 22:50:43,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:43,227 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 22:50:43,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:43,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:43,233 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 22:50:43,234 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:50:43,234 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 22:50:43,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:43,236 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 22:50:43,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:43,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:43,237 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 22:50:43,237 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 22:50:43,244 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 11#L367true assume !(main_~length~0 < 1); 8#L367-2true call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 5#L369true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 6#L370-3true [2021-10-28 22:50:43,244 INFO L793 eck$LassoCheckResult]: Loop: 6#L370-3true assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 13#L372true assume main_#t~mem209 > 0;havoc main_#t~mem209;call write~int(0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 16#L370-2true main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 6#L370-3true [2021-10-28 22:50:43,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:43,260 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-10-28 22:50:43,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:43,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072072048] [2021-10-28 22:50:43,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:43,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:43,388 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:43,440 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:43,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:43,455 INFO L85 PathProgramCache]: Analyzing trace with hash 51737, now seen corresponding path program 1 times [2021-10-28 22:50:43,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:43,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376011861] [2021-10-28 22:50:43,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:43,457 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:43,469 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:43,511 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:43,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:43,513 INFO L85 PathProgramCache]: Analyzing trace with hash 176707665, now seen corresponding path program 1 times [2021-10-28 22:50:43,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:43,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147595375] [2021-10-28 22:50:43,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:43,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:43,562 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:43,604 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:43,876 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:50:43,877 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:50:43,877 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:50:43,877 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:50:43,877 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:50:43,877 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:43,877 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:50:43,878 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:50:43,878 INFO L133 ssoRankerPreferences]: Filename of dumped script: array14_alloca.i_Iteration1_Lasso [2021-10-28 22:50:43,878 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:50:43,878 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:50:43,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:43,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:43,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:43,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:43,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:43,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:43,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,219 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:50:44,223 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:50:44,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:44,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:44,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:44,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:44,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:44,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:44,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:44,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:44,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:44,245 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:44,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:44,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 22:50:44,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:44,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:44,297 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:44,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:44,299 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:44,308 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 [2021-10-28 22:50:44,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:44,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:44,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:44,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:44,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:44,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:44,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:44,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 22:50:44,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:44,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:44,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:44,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:44,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:44,384 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 [2021-10-28 22:50:44,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:44,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:44,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:44,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:44,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:44,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:44,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:44,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 22:50:44,411 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:44,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:44,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:44,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:44,448 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:44,482 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 [2021-10-28 22:50:44,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:44,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:44,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:44,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:44,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:44,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:44,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:44,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 22:50:44,511 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:44,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:44,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:44,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:44,553 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:44,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 22:50:44,559 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 [2021-10-28 22:50:44,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:44,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:44,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:44,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:44,573 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:44,573 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:44,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:44,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:44,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:44,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:44,631 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:44,637 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 [2021-10-28 22:50:44,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:44,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:44,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:44,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:44,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:44,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:44,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:44,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 22:50:44,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:44,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:44,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:44,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:44,703 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:44,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:44,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:44,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:44,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:44,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:44,732 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:44,732 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:44,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 22:50:44,755 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:44,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:44,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:44,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:44,796 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:44,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 22:50:44,799 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 [2021-10-28 22:50:44,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:44,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:44,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:44,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:44,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:44,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:44,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:44,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:44,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:44,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:44,875 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:44,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 22:50:44,886 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 [2021-10-28 22:50:44,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:44,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:44,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:44,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:44,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:44,897 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:44,897 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:44,910 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:44,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:44,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:44,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:44,945 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:44,956 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 [2021-10-28 22:50:44,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 22:50:44,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:44,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:44,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:44,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:44,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:44,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:45,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:50:45,027 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-28 22:50:45,027 INFO L444 ModelExtractionUtils]: 11 out of 22 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-28 22:50:45,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,031 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,037 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:50:45,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 22:50:45,068 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:50:45,068 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:50:45,068 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2021-10-28 22:50:45,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,117 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-28 22:50:45,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:45,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 22:50:45,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:45,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 22:50:45,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:45,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:45,258 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 [2021-10-28 22:50:45,260 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:45,327 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 50 transitions. Complement of second has 7 states. [2021-10-28 22:50:45,328 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 [2021-10-28 22:50:45,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:45,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2021-10-28 22:50:45,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-28 22:50:45,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:45,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-28 22:50:45,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:45,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 6 letters. [2021-10-28 22:50:45,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:45,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2021-10-28 22:50:45,349 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:50:45,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 12 states and 17 transitions. [2021-10-28 22:50:45,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 22:50:45,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-28 22:50:45,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2021-10-28 22:50:45,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:50:45,355 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-28 22:50:45,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2021-10-28 22:50:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-28 22:50:45,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:45,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-10-28 22:50:45,381 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-28 22:50:45,381 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-28 22:50:45,382 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 22:50:45,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2021-10-28 22:50:45,384 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:50:45,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:45,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:45,385 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:45,385 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:50:45,385 INFO L791 eck$LassoCheckResult]: Stem: 113#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 114#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 121#L367 assume !(main_~length~0 < 1); 115#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 116#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 117#L370-3 assume !(main_~i~0 < main_~length~0); 118#L370-4 main_~j~0 := 0; 119#L378-2 [2021-10-28 22:50:45,385 INFO L793 eck$LassoCheckResult]: Loop: 119#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 120#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 119#L378-2 [2021-10-28 22:50:45,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:45,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815510, now seen corresponding path program 1 times [2021-10-28 22:50:45,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:45,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604698057] [2021-10-28 22:50:45,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:45,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:45,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:45,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:50:45,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604698057] [2021-10-28 22:50:45,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604698057] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:50:45,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:50:45,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 22:50:45,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715865431] [2021-10-28 22:50:45,475 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 22:50:45,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:45,476 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 1 times [2021-10-28 22:50:45,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:45,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963999085] [2021-10-28 22:50:45,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:45,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:45,498 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:45,507 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:45,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:50:45,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 22:50:45,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 22:50:45,577 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-10-28 22:50:45,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:50:45,606 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2021-10-28 22:50:45,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 22:50:45,607 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-10-28 22:50:45,610 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:50:45,612 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. [2021-10-28 22:50:45,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-28 22:50:45,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-28 22:50:45,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2021-10-28 22:50:45,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:50:45,613 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-10-28 22:50:45,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2021-10-28 22:50:45,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2021-10-28 22:50:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 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) [2021-10-28 22:50:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-10-28 22:50:45,616 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 22:50:45,616 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 22:50:45,616 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 22:50:45,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-10-28 22:50:45,617 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:50:45,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:45,617 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:45,619 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:45,619 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:50:45,619 INFO L791 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 147#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 154#L367 assume !(main_~length~0 < 1); 148#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 149#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 150#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 155#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 157#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 156#L370-3 assume !(main_~i~0 < main_~length~0); 151#L370-4 main_~j~0 := 0; 152#L378-2 [2021-10-28 22:50:45,619 INFO L793 eck$LassoCheckResult]: Loop: 152#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 153#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 152#L378-2 [2021-10-28 22:50:45,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:45,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1982565540, now seen corresponding path program 1 times [2021-10-28 22:50:45,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:45,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149659896] [2021-10-28 22:50:45,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:45,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:45,652 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:45,686 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:45,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:45,687 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 2 times [2021-10-28 22:50:45,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:45,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067670967] [2021-10-28 22:50:45,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:45,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:45,697 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:45,707 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:45,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:45,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1719996831, now seen corresponding path program 1 times [2021-10-28 22:50:45,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:45,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278300451] [2021-10-28 22:50:45,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:45,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:45,733 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:45,769 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:46,106 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:50:46,107 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:50:46,107 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:50:46,107 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:50:46,107 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:50:46,107 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:46,108 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:50:46,108 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:50:46,108 INFO L133 ssoRankerPreferences]: Filename of dumped script: array14_alloca.i_Iteration3_Lasso [2021-10-28 22:50:46,108 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:50:46,108 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:50:46,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:46,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:46,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:46,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:46,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:46,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:46,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:46,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:46,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:46,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:46,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:46,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:46,446 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:50:46,446 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:50:46,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:46,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:46,449 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:46,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 22:50:46,460 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 [2021-10-28 22:50:46,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:46,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:46,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:46,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:46,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:46,470 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:46,470 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:46,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:46,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:46,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:46,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:46,528 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:46,534 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 [2021-10-28 22:50:46,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:46,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:46,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:46,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:46,548 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:46,548 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:46,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 22:50:46,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:46,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:46,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:46,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:46,607 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:46,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 22:50:46,612 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 [2021-10-28 22:50:46,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:46,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:46,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:46,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:46,632 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:46,632 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:46,651 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:50:46,702 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2021-10-28 22:50:46,702 INFO L444 ModelExtractionUtils]: 6 out of 25 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-10-28 22:50:46,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:46,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:46,707 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:46,743 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:50:46,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 22:50:46,776 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:50:46,776 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:50:46,776 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2021-10-28 22:50:46,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:46,818 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-28 22:50:46,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:46,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 22:50:46,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:46,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 22:50:46,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:46,905 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 [2021-10-28 22:50:46,905 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2021-10-28 22:50:46,918 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) Result 16 states and 22 transitions. Complement of second has 5 states. [2021-10-28 22:50:46,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 22:50:46,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2021-10-28 22:50:46,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-10-28 22:50:46,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-28 22:50:46,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:46,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 2 letters. [2021-10-28 22:50:46,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:46,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-28 22:50:46,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:46,921 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2021-10-28 22:50:46,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:50:46,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 22 transitions. [2021-10-28 22:50:46,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 22:50:46,923 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-28 22:50:46,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2021-10-28 22:50:46,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:50:46,924 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-10-28 22:50:46,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2021-10-28 22:50:46,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-28 22:50:46,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:46,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2021-10-28 22:50:46,926 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-10-28 22:50:46,926 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-10-28 22:50:46,927 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 22:50:46,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2021-10-28 22:50:46,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:50:46,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:46,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:46,928 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:46,929 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:50:46,929 INFO L791 eck$LassoCheckResult]: Stem: 243#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 244#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 254#L367 assume !(main_~length~0 < 1); 245#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 246#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 247#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 255#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 257#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 256#L370-3 assume !(main_~i~0 < main_~length~0); 248#L370-4 main_~j~0 := 0; 249#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 250#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 251#L378-2 [2021-10-28 22:50:46,929 INFO L793 eck$LassoCheckResult]: Loop: 251#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 258#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 251#L378-2 [2021-10-28 22:50:46,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:46,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1719996833, now seen corresponding path program 1 times [2021-10-28 22:50:46,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:46,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957841694] [2021-10-28 22:50:46,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:46,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:46,942 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:46,955 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:46,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:46,956 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 3 times [2021-10-28 22:50:46,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:46,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75307106] [2021-10-28 22:50:46,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:46,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:46,961 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:46,965 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:46,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:46,965 INFO L85 PathProgramCache]: Analyzing trace with hash -645451100, now seen corresponding path program 1 times [2021-10-28 22:50:46,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:46,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441603218] [2021-10-28 22:50:46,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:46,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:47,017 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:47,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:50:47,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441603218] [2021-10-28 22:50:47,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441603218] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:50:47,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66588496] [2021-10-28 22:50:47,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:47,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:50:47,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:47,019 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:50:47,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 22:50:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:47,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 22:50:47,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:47,238 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:47,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66588496] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:50:47,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:50:47,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-10-28 22:50:47,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239697307] [2021-10-28 22:50:47,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:50:47,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 22:50:47,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-28 22:50:47,340 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:47,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:47,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:50:47,510 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2021-10-28 22:50:47,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 22:50:47,511 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 48 transitions. [2021-10-28 22:50:47,512 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:50:47,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 21 states and 28 transitions. [2021-10-28 22:50:47,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-28 22:50:47,513 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-28 22:50:47,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2021-10-28 22:50:47,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:50:47,514 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-10-28 22:50:47,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2021-10-28 22:50:47,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-10-28 22:50:47,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:47,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2021-10-28 22:50:47,517 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-10-28 22:50:47,517 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-10-28 22:50:47,517 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 22:50:47,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2021-10-28 22:50:47,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:50:47,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:47,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:47,519 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:47,519 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:50:47,519 INFO L791 eck$LassoCheckResult]: Stem: 358#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 359#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 369#L367 assume !(main_~length~0 < 1); 360#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 361#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 362#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 370#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 375#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 371#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 372#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 374#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 376#L370-3 assume !(main_~i~0 < main_~length~0); 367#L370-4 main_~j~0 := 0; 368#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 363#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 364#L378-2 [2021-10-28 22:50:47,519 INFO L793 eck$LassoCheckResult]: Loop: 364#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 373#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 364#L378-2 [2021-10-28 22:50:47,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:47,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1238701285, now seen corresponding path program 2 times [2021-10-28 22:50:47,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:47,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248481692] [2021-10-28 22:50:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:47,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:47,568 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:47,589 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:47,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:47,590 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 4 times [2021-10-28 22:50:47,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:47,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300841582] [2021-10-28 22:50:47,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:47,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:47,594 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:47,598 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:47,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:47,599 INFO L85 PathProgramCache]: Analyzing trace with hash -685992546, now seen corresponding path program 2 times [2021-10-28 22:50:47,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:47,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738808630] [2021-10-28 22:50:47,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:47,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:47,637 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:47,677 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:48,171 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:50:48,171 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:50:48,172 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:50:48,172 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:50:48,172 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:50:48,172 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:48,172 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:50:48,172 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:50:48,172 INFO L133 ssoRankerPreferences]: Filename of dumped script: array14_alloca.i_Iteration5_Lasso [2021-10-28 22:50:48,172 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:50:48,172 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:50:48,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:48,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:48,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:48,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:48,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:48,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:48,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:48,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:48,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:48,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:48,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:48,562 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:50:48,563 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:50:48,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:48,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:48,568 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:48,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 22:50:48,576 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 [2021-10-28 22:50:48,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:48,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:48,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:48,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:48,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:48,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:48,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:48,593 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:48,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-10-28 22:50:48,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:48,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:48,621 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:48,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 22:50:48,623 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 [2021-10-28 22:50:48,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:48,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:48,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:48,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:48,638 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:48,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:48,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:48,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:48,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:48,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:48,687 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:48,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 22:50:48,694 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 [2021-10-28 22:50:48,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:48,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:48,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:48,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:48,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:48,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:48,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:48,724 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:48,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:48,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:48,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:48,748 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:48,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 22:50:48,749 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 [2021-10-28 22:50:48,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:48,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:48,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:48,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:48,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:48,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:48,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:48,759 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:48,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:48,781 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:48,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:48,786 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:48,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 22:50:48,787 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 [2021-10-28 22:50:48,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:48,795 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:48,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:48,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:48,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:48,795 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:48,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:48,796 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:48,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:48,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:48,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:48,823 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:48,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 22:50:48,829 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 [2021-10-28 22:50:48,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:48,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:48,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:48,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:48,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:48,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:48,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:48,840 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:48,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:48,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:48,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:48,867 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:48,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 22:50:48,879 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 [2021-10-28 22:50:48,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:48,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:48,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:48,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:48,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:48,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:48,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:48,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-28 22:50:48,940 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:48,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:48,941 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:48,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 22:50:48,942 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 [2021-10-28 22:50:48,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:48,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:48,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:48,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:48,951 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:48,952 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:48,983 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:49,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:49,019 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:49,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:49,020 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:49,028 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 [2021-10-28 22:50:49,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 22:50:49,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:49,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:49,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:49,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:49,041 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:49,041 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:49,046 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:49,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:49,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:49,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:49,070 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:49,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 22:50:49,073 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 [2021-10-28 22:50:49,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:49,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:49,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:49,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:49,091 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:49,091 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:49,108 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:50:49,143 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-28 22:50:49,143 INFO L444 ModelExtractionUtils]: 13 out of 25 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-10-28 22:50:49,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:49,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:49,163 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:49,164 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:50:49,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 22:50:49,182 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:50:49,183 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:50:49,183 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2021-10-28 22:50:49,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:49,259 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-10-28 22:50:49,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:49,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 22:50:49,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:49,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 22:50:49,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:49,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:49,355 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 [2021-10-28 22:50:49,355 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2021-10-28 22:50:49,370 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) Result 23 states and 31 transitions. Complement of second has 5 states. [2021-10-28 22:50:49,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 22:50:49,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2021-10-28 22:50:49,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2021-10-28 22:50:49,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 2 letters. [2021-10-28 22:50:49,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:49,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2021-10-28 22:50:49,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:49,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-28 22:50:49,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:49,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 31 transitions. [2021-10-28 22:50:49,378 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:50:49,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 31 transitions. [2021-10-28 22:50:49,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-28 22:50:49,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 22:50:49,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions. [2021-10-28 22:50:49,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:50:49,379 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2021-10-28 22:50:49,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions. [2021-10-28 22:50:49,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-28 22:50:49,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 22 states have internal predecessors, (31), 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) [2021-10-28 22:50:49,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2021-10-28 22:50:49,382 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2021-10-28 22:50:49,382 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2021-10-28 22:50:49,382 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 22:50:49,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 31 transitions. [2021-10-28 22:50:49,383 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 22:50:49,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:49,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:49,384 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:49,384 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:50:49,384 INFO L791 eck$LassoCheckResult]: Stem: 488#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 489#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 499#L367 assume !(main_~length~0 < 1); 490#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 491#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 492#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 500#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 505#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 501#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 502#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 504#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 506#L370-3 assume !(main_~i~0 < main_~length~0); 497#L370-4 main_~j~0 := 0; 498#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 508#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 507#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 493#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 494#L378-2 [2021-10-28 22:50:49,384 INFO L793 eck$LassoCheckResult]: Loop: 494#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 503#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 494#L378-2 [2021-10-28 22:50:49,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:49,384 INFO L85 PathProgramCache]: Analyzing trace with hash -685992544, now seen corresponding path program 3 times [2021-10-28 22:50:49,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:49,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888037982] [2021-10-28 22:50:49,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:49,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:49,412 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:49,454 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:49,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:49,455 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 5 times [2021-10-28 22:50:49,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:49,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862808996] [2021-10-28 22:50:49,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:49,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:49,459 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:49,472 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:49,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:49,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2108837149, now seen corresponding path program 3 times [2021-10-28 22:50:49,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:49,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389365692] [2021-10-28 22:50:49,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:49,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:49,570 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:49,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:50:49,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389365692] [2021-10-28 22:50:49,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389365692] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:50:49,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501029913] [2021-10-28 22:50:49,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 22:50:49,571 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 22:50:49,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:49,575 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 22:50:49,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-28 22:50:49,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-28 22:50:49,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 22:50:49,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:50:49,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:49,777 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:49,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501029913] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 22:50:49,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 22:50:49,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-10-28 22:50:49,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103551950] [2021-10-28 22:50:49,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:50:49,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 22:50:49,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-10-28 22:50:49,821 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. cyclomatic complexity: 12 Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 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) [2021-10-28 22:50:49,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:49,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:50:49,970 INFO L93 Difference]: Finished difference Result 48 states and 65 transitions. [2021-10-28 22:50:49,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 22:50:49,970 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 65 transitions. [2021-10-28 22:50:49,972 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 22:50:49,973 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 46 states and 62 transitions. [2021-10-28 22:50:49,973 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-10-28 22:50:49,973 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-28 22:50:49,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 62 transitions. [2021-10-28 22:50:49,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 22:50:49,973 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 62 transitions. [2021-10-28 22:50:49,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 62 transitions. [2021-10-28 22:50:49,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 39. [2021-10-28 22:50:49,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.358974358974359) internal successors, (53), 38 states have internal predecessors, (53), 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) [2021-10-28 22:50:49,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2021-10-28 22:50:49,978 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-10-28 22:50:49,978 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-10-28 22:50:49,978 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 22:50:49,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 53 transitions. [2021-10-28 22:50:49,983 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 22:50:49,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:49,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:49,984 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:49,984 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-28 22:50:49,984 INFO L791 eck$LassoCheckResult]: Stem: 641#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 642#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 652#L367 assume !(main_~length~0 < 1); 643#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 644#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 645#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 653#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 663#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 654#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 655#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 661#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 662#L370-3 assume !(main_~i~0 < main_~length~0); 646#L370-4 main_~j~0 := 0; 647#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 665#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 664#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 650#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 651#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 658#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 674#L378-2 [2021-10-28 22:50:49,985 INFO L793 eck$LassoCheckResult]: Loop: 674#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 670#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 656#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 657#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 674#L378-2 [2021-10-28 22:50:49,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:49,985 INFO L85 PathProgramCache]: Analyzing trace with hash -2108839069, now seen corresponding path program 4 times [2021-10-28 22:50:49,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:49,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818167446] [2021-10-28 22:50:49,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:49,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:50,001 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:50,018 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:50,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:50,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2219337, now seen corresponding path program 1 times [2021-10-28 22:50:50,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:50,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236148490] [2021-10-28 22:50:50,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:50,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:50,024 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:50,029 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:50,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:50,029 INFO L85 PathProgramCache]: Analyzing trace with hash 50792363, now seen corresponding path program 5 times [2021-10-28 22:50:50,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:50,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10891197] [2021-10-28 22:50:50,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:50,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:50,046 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:50,068 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:50,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 10:50:50 BoogieIcfgContainer [2021-10-28 22:50:50,692 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 22:50:50,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:50:50,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:50:50,695 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:50:50,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:50:43" (3/4) ... [2021-10-28 22:50:50,699 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 22:50:50,745 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d3caa1-d5ed-4510-9c9e-8450f27499ce/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:50:50,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:50:50,747 INFO L168 Benchmark]: Toolchain (without parser) took 8623.01 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 77.3 MB in the beginning and 47.1 MB in the end (delta: 30.2 MB). Peak memory consumption was 54.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:50,747 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 79.7 MB. Free memory was 38.0 MB in the beginning and 37.9 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:50:50,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.68 ms. Allocated memory is still 109.1 MB. Free memory was 77.1 MB in the beginning and 77.8 MB in the end (delta: -716.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:50,748 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.25 ms. Allocated memory is still 109.1 MB. Free memory was 77.8 MB in the beginning and 76.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:50,749 INFO L168 Benchmark]: Boogie Preprocessor took 23.02 ms. Allocated memory is still 109.1 MB. Free memory was 76.1 MB in the beginning and 74.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:50,749 INFO L168 Benchmark]: RCFGBuilder took 385.18 ms. Allocated memory is still 109.1 MB. Free memory was 74.9 MB in the beginning and 65.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:50,750 INFO L168 Benchmark]: BuchiAutomizer took 7584.56 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 65.2 MB in the beginning and 49.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:50,750 INFO L168 Benchmark]: Witness Printer took 51.06 ms. Allocated memory is still 132.1 MB. Free memory was 49.2 MB in the beginning and 47.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:50,752 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 79.7 MB. Free memory was 38.0 MB in the beginning and 37.9 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 531.68 ms. Allocated memory is still 109.1 MB. Free memory was 77.1 MB in the beginning and 77.8 MB in the end (delta: -716.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.25 ms. Allocated memory is still 109.1 MB. Free memory was 77.8 MB in the beginning and 76.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.02 ms. Allocated memory is still 109.1 MB. Free memory was 76.1 MB in the beginning and 74.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 385.18 ms. Allocated memory is still 109.1 MB. Free memory was 74.9 MB in the beginning and 65.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7584.56 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 65.2 MB in the beginning and 49.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.1 GB. * Witness Printer took 51.06 ms. Allocated memory is still 132.1 MB. Free memory was 49.2 MB in the beginning and 47.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function length + -1 * i and consists of 5 locations. One deterministic module has affine ranking function 2 * j + 1 and consists of 3 locations. One deterministic module has affine ranking function 2 * j + 1 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 13 locations. The remainder module has 39 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.5s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 6.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 39 states and ocurred in iteration 6. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 65 SDtfs, 109 SDslu, 69 SDs, 0 SdLazy, 164 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital130 mio100 ax100 hnf99 lsp94 ukn80 mio100 lsp63 div100 bol100 ite100 ukn100 eq165 hnf92 smp95 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms 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: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 377]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, \result=0, NULL=1, arr=2, arr=0, i=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bb29735=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43207d8e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55090e2a=0, length=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@581094da=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55090e2a=2, j=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@2ef180d9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@6b08fbe2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@344e7abb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@119be359=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 377]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) [L368] int *arr = __builtin_alloca(length*sizeof(int)); [L369] COND FALSE !(!arr) [L370] i=0 [L370] COND TRUE i 0) [L370] i++ [L370] COND TRUE i 0) [L370] i++ [L370] COND FALSE !(i