./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_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/array14_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg --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 09:34:12,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:34:12,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:34:13,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:34:13,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:34:13,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:34:13,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:34:13,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:34:13,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:34:13,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:34:13,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:34:13,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:34:13,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:34:13,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:34:13,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:34:13,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:34:13,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:34:13,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:34:13,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:34:13,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:34:13,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:34:13,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:34:13,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:34:13,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:34:13,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:34:13,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:34:13,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:34:13,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:34:13,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:34:13,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:34:13,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:34:13,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:34:13,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:34:13,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:34:13,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:34:13,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:34:13,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:34:13,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:34:13,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:34:13,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:34:13,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:34:13,106 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:34:13,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:34:13,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:34:13,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:34:13,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:34:13,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:34:13,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:34:13,136 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:34:13,137 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:34:13,137 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:34:13,137 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:34:13,137 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:34:13,137 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:34:13,138 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:34:13,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:34:13,138 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:34:13,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:34:13,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:34:13,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:34:13,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:34:13,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:34:13,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:34:13,139 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:34:13,139 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:34:13,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:34:13,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:34:13,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:34:13,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:34:13,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:34:13,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:34:13,142 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:34:13,142 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_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0f9dc1e3a944fe0c87fb9c3f72dec5466e715e61eb5b701f6540feca3c935ad [2021-10-28 09:34:13,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:34:13,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:34:13,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:34:13,423 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:34:13,424 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:34:13,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-15/array14_alloca.i [2021-10-28 09:34:13,486 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/data/127d4be66/494708776df748729c892f63b2d7f5c7/FLAGf64e39a3f [2021-10-28 09:34:13,970 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:34:13,971 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/sv-benchmarks/c/termination-15/array14_alloca.i [2021-10-28 09:34:13,980 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/data/127d4be66/494708776df748729c892f63b2d7f5c7/FLAGf64e39a3f [2021-10-28 09:34:14,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/data/127d4be66/494708776df748729c892f63b2d7f5c7 [2021-10-28 09:34:14,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:34:14,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:34:14,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:34:14,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:34:14,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:34:14,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:34:14" (1/1) ... [2021-10-28 09:34:14,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@653a5d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:14, skipping insertion in model container [2021-10-28 09:34:14,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:34:14" (1/1) ... [2021-10-28 09:34:14,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:34:14,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:34:14,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:34:14,649 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:34:14,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:34:14,720 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:34:14,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:14 WrapperNode [2021-10-28 09:34:14,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:34:14,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:34:14,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:34:14,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:34:14,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:14" (1/1) ... [2021-10-28 09:34:14,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:14" (1/1) ... [2021-10-28 09:34:14,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:34:14,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:34:14,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:34:14,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:34:14,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:14" (1/1) ... [2021-10-28 09:34:14,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:14" (1/1) ... [2021-10-28 09:34:14,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:14" (1/1) ... [2021-10-28 09:34:14,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:14" (1/1) ... [2021-10-28 09:34:14,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:14" (1/1) ... [2021-10-28 09:34:14,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:14" (1/1) ... [2021-10-28 09:34:14,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:14" (1/1) ... [2021-10-28 09:34:14,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:34:14,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:34:14,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:34:14,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:34:14,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:14" (1/1) ... [2021-10-28 09:34:14,793 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:14,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:14,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:14,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:34:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:34:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:34:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:34:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:34:14,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:34:14,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:34:15,175 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:34:15,175 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 09:34:15,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:34:15 BoogieIcfgContainer [2021-10-28 09:34:15,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:34:15,178 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:34:15,178 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:34:15,181 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:34:15,182 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:34:15,182 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:34:14" (1/3) ... [2021-10-28 09:34:15,183 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fc2511c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:34:15, skipping insertion in model container [2021-10-28 09:34:15,183 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:34:15,183 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:34:14" (2/3) ... [2021-10-28 09:34:15,184 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fc2511c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:34:15, skipping insertion in model container [2021-10-28 09:34:15,184 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:34:15,184 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:34:15" (3/3) ... [2021-10-28 09:34:15,185 INFO L389 chiAutomizerObserver]: Analyzing ICFG array14_alloca.i [2021-10-28 09:34:15,228 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:34:15,228 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:34:15,228 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:34:15,229 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:34:15,229 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:34:15,229 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:34:15,229 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:34:15,229 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:34:15,243 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 09:34:15,260 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 09:34:15,261 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:34:15,261 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:34:15,266 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 09:34:15,267 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:34:15,267 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:34:15,267 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 09:34:15,269 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-28 09:34:15,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:34:15,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:34:15,269 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 09:34:15,270 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:34:15,276 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 09:34:15,277 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 09:34:15,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:15,282 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-10-28 09:34:15,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:15,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586565153] [2021-10-28 09:34:15,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:15,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:15,400 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:15,428 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:15,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:15,431 INFO L85 PathProgramCache]: Analyzing trace with hash 51737, now seen corresponding path program 1 times [2021-10-28 09:34:15,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:15,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361678947] [2021-10-28 09:34:15,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:15,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:15,443 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:15,454 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:15,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:15,456 INFO L85 PathProgramCache]: Analyzing trace with hash 176707665, now seen corresponding path program 1 times [2021-10-28 09:34:15,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:15,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122589763] [2021-10-28 09:34:15,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:15,457 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:15,476 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:15,498 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:15,789 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:34:15,789 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:34:15,789 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:34:15,789 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:34:15,790 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:34:15,790 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:15,790 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:34:15,790 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:34:15,790 INFO L133 ssoRankerPreferences]: Filename of dumped script: array14_alloca.i_Iteration1_Lasso [2021-10-28 09:34:15,791 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:34:15,791 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:34:15,819 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 09:34:15,824 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 09:34:15,827 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 09:34:15,851 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 09:34:15,853 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 09:34:15,857 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 09:34:15,867 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 09:34:15,964 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 09:34:15,967 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 09:34:15,972 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 09:34:15,976 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 09:34:15,979 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 09:34:16,216 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:34:16,220 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:34:16,222 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:16,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:16,226 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:16,236 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 09:34:16,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:16,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:16,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:16,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:16,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:16,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:16,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:16,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:34:16,266 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:16,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:16,308 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:16,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:16,310 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:16,317 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 09:34:16,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:16,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:16,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:16,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:16,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:16,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:16,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:16,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:34:16,350 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:16,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:16,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:16,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:16,388 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:16,394 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 09:34:16,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:16,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:16,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:16,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:16,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:16,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:16,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:16,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:34:16,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:16,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:16,441 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:16,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:16,443 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:16,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:34:16,454 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 09:34:16,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:16,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:16,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:16,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:16,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:16,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:16,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:16,481 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:16,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:16,514 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:16,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:16,516 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:16,522 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 09:34:16,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:16,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:16,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:16,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:16,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:16,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:16,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:34:16,540 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:16,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:16,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:16,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:16,580 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:16,586 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 09:34:16,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:34:16,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:16,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:16,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:16,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:16,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:16,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:16,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:16,613 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:16,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:16,632 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:16,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:16,633 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:16,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:34:16,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:34:16,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:16,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:16,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:16,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:16,670 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:16,670 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:16,688 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:16,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:16,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:16,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:16,730 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:16,736 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 09:34:16,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:16,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:16,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:16,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:16,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:34:16,753 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:16,753 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:16,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:16,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:16,833 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:16,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:16,850 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:16,855 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 09:34:16,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:16,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:16,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:16,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:16,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:16,865 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:16,865 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:16,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:34:16,877 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:16,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:16,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:16,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:16,911 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:16,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:34:16,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:16,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:16,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:16,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:16,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:16,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:16,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:34:16,978 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:34:16,999 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-28 09:34:16,999 INFO L444 ModelExtractionUtils]: 11 out of 22 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-28 09:34:17,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,010 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,042 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:34:17,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:34:17,064 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:34:17,065 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:34:17,065 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 09:34:17,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:17,094 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-28 09:34:17,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:17,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:34:17,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:17,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:34:17,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:17,241 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 09:34:17,269 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 09:34:17,272 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 09:34:17,318 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 09:34:17,319 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 09:34:17,320 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 09:34:17,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2021-10-28 09:34:17,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-28 09:34:17,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:34:17,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-28 09:34:17,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:34:17,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 6 letters. [2021-10-28 09:34:17,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:34:17,325 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2021-10-28 09:34:17,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:34:17,339 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 12 states and 17 transitions. [2021-10-28 09:34:17,340 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 09:34:17,340 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-28 09:34:17,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2021-10-28 09:34:17,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:34:17,341 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-28 09:34:17,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2021-10-28 09:34:17,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-28 09:34:17,358 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 09:34:17,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-10-28 09:34:17,359 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-28 09:34:17,359 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-28 09:34:17,359 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:34:17,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2021-10-28 09:34:17,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:34:17,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:34:17,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:34:17,361 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:17,361 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:34:17,361 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 09:34:17,361 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 09:34:17,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:17,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815510, now seen corresponding path program 1 times [2021-10-28 09:34:17,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:17,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056305346] [2021-10-28 09:34:17,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:17,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:17,411 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 09:34:17,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:17,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056305346] [2021-10-28 09:34:17,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056305346] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:17,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:34:17,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:34:17,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423521192] [2021-10-28 09:34:17,415 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:34:17,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:17,415 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 1 times [2021-10-28 09:34:17,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:17,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787414960] [2021-10-28 09:34:17,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:17,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:17,422 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:17,428 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:17,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:17,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:34:17,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:34:17,488 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 09:34:17,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:34:17,519 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2021-10-28 09:34:17,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:34:17,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-10-28 09:34:17,522 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:34:17,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. [2021-10-28 09:34:17,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-28 09:34:17,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-28 09:34:17,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2021-10-28 09:34:17,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:34:17,526 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-10-28 09:34:17,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2021-10-28 09:34:17,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2021-10-28 09:34:17,527 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 09:34:17,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-10-28 09:34:17,528 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 09:34:17,528 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 09:34:17,528 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:34:17,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-10-28 09:34:17,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:34:17,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:34:17,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:34:17,529 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:17,530 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:34:17,530 INFO L791 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 147#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 154#L367 assume !(main_~length~0 < 1); 148#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 149#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 150#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 155#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 157#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 156#L370-3 assume !(main_~i~0 < main_~length~0); 151#L370-4 main_~j~0 := 0; 152#L378-2 [2021-10-28 09:34:17,530 INFO L793 eck$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 09:34:17,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:17,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1982565540, now seen corresponding path program 1 times [2021-10-28 09:34:17,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:17,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841287201] [2021-10-28 09:34:17,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:17,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:17,564 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:17,596 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:17,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:17,597 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 2 times [2021-10-28 09:34:17,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:17,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655784143] [2021-10-28 09:34:17,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:17,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:17,602 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:17,614 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:17,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:17,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1719996831, now seen corresponding path program 1 times [2021-10-28 09:34:17,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:17,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717946073] [2021-10-28 09:34:17,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:17,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:17,645 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:17,669 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:17,977 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:34:17,977 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:34:17,977 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:34:17,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:34:17,977 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:34:17,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:34:17,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:34:17,978 INFO L133 ssoRankerPreferences]: Filename of dumped script: array14_alloca.i_Iteration3_Lasso [2021-10-28 09:34:17,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:34:17,978 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:34:17,981 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 09:34:17,983 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 09:34:18,100 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 09:34:18,103 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 09:34:18,106 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 09:34:18,108 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 09:34:18,110 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 09:34:18,112 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 09:34:18,114 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 09:34:18,117 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 09:34:18,119 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 09:34:18,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:18,329 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:34:18,330 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:34:18,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:18,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:18,331 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:18,342 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 09:34:18,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:18,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:18,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:18,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:18,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:18,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:18,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:18,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:34:18,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:18,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:18,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:18,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:18,407 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:18,413 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 09:34:18,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:18,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:18,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:18,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:18,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:18,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:18,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:34:18,445 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:18,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:18,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:18,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:18,486 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:18,492 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 09:34:18,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:18,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:18,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:18,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:18,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:18,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:18,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:34:18,528 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:34:18,575 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2021-10-28 09:34:18,575 INFO L444 ModelExtractionUtils]: 6 out of 25 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-10-28 09:34:18,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:18,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:18,578 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:18,586 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:34:18,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:34:18,611 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:34:18,611 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:34:18,611 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 09:34:18,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:18,653 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-28 09:34:18,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:18,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:34:18,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:18,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:34:18,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:18,749 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 09:34:18,751 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 09:34:18,751 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 09:34:18,764 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 09:34:18,765 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 09:34:18,765 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 09:34:18,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-10-28 09:34:18,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-28 09:34:18,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:34:18,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 2 letters. [2021-10-28 09:34:18,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:34:18,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-28 09:34:18,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:34:18,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2021-10-28 09:34:18,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:34:18,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 22 transitions. [2021-10-28 09:34:18,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 09:34:18,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-28 09:34:18,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2021-10-28 09:34:18,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:34:18,775 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-10-28 09:34:18,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2021-10-28 09:34:18,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-28 09:34:18,777 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 09:34:18,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2021-10-28 09:34:18,779 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-10-28 09:34:18,779 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-10-28 09:34:18,779 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:34:18,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2021-10-28 09:34:18,782 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:34:18,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:34:18,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:34:18,784 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:18,784 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:34:18,784 INFO L791 eck$LassoCheckResult]: Stem: 243#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 244#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 254#L367 assume !(main_~length~0 < 1); 245#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 246#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 247#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 255#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 257#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 256#L370-3 assume !(main_~i~0 < main_~length~0); 248#L370-4 main_~j~0 := 0; 249#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 250#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 251#L378-2 [2021-10-28 09:34:18,784 INFO L793 eck$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 09:34:18,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:18,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1719996833, now seen corresponding path program 1 times [2021-10-28 09:34:18,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:18,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624611832] [2021-10-28 09:34:18,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:18,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:18,813 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:18,842 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:18,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:18,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 3 times [2021-10-28 09:34:18,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:18,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025599404] [2021-10-28 09:34:18,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:18,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:18,852 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:18,856 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:18,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:18,862 INFO L85 PathProgramCache]: Analyzing trace with hash -645451100, now seen corresponding path program 1 times [2021-10-28 09:34:18,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:18,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255844707] [2021-10-28 09:34:18,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:18,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:18,948 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 09:34:18,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:18,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255844707] [2021-10-28 09:34:18,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255844707] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:34:18,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121032887] [2021-10-28 09:34:18,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:18,950 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:34:18,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:18,954 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:34:18,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 09:34:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:19,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:34:19,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:19,101 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 09:34:19,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121032887] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:34:19,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:34:19,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-10-28 09:34:19,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949570194] [2021-10-28 09:34:19,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:19,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:34:19,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:34:19,148 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 09:34:19,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:34:19,257 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2021-10-28 09:34:19,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:34:19,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 48 transitions. [2021-10-28 09:34:19,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:34:19,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 21 states and 28 transitions. [2021-10-28 09:34:19,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-28 09:34:19,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-28 09:34:19,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2021-10-28 09:34:19,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:34:19,260 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-10-28 09:34:19,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2021-10-28 09:34:19,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-10-28 09:34:19,261 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 09:34:19,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2021-10-28 09:34:19,262 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-10-28 09:34:19,262 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-10-28 09:34:19,262 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:34:19,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2021-10-28 09:34:19,263 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:34:19,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:34:19,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:34:19,263 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:19,264 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:34:19,264 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 09:34:19,264 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 09:34:19,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:19,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1238701285, now seen corresponding path program 2 times [2021-10-28 09:34:19,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:19,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807745801] [2021-10-28 09:34:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:19,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:19,279 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:19,292 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:19,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:19,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 4 times [2021-10-28 09:34:19,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:19,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674398237] [2021-10-28 09:34:19,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:19,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:19,297 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:19,300 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:19,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:19,301 INFO L85 PathProgramCache]: Analyzing trace with hash -685992546, now seen corresponding path program 2 times [2021-10-28 09:34:19,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:19,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100807236] [2021-10-28 09:34:19,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:19,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:19,318 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:19,356 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:19,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:19,812 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:34:19,812 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:34:19,813 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:34:19,813 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:34:19,813 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:34:19,813 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:19,813 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:34:19,813 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:34:19,813 INFO L133 ssoRankerPreferences]: Filename of dumped script: array14_alloca.i_Iteration5_Lasso [2021-10-28 09:34:19,813 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:34:19,813 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:34:19,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:34:19,818 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 09:34:19,821 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 09:34:19,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:34:19,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:34:19,827 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 09:34:19,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:34:19,952 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 09:34:19,954 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 09:34:19,956 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 09:34:19,958 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 09:34:20,112 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:34:20,112 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:34:20,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:20,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:20,116 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:20,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:34:20,117 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 09:34:20,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:20,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:20,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:20,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:20,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:20,125 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:20,125 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:20,133 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:20,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:20,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:20,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:20,156 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:20,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:34:20,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:34:20,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:20,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:20,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:20,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:20,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:20,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:20,169 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:20,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:20,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:20,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:20,200 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:20,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:34:20,209 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 09:34:20,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:20,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:20,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:20,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:20,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:20,217 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:20,217 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:20,218 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:20,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:20,239 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:20,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:20,240 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:20,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:34:20,241 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 09:34:20,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:20,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:20,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:20,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:20,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:20,249 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:20,249 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:20,253 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:20,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:20,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:20,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:20,273 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:20,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:34:20,277 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 09:34:20,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:20,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:20,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:20,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:20,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:20,286 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:20,286 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:20,287 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:20,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:20,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:20,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:20,307 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:20,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:34:20,308 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 09:34:20,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:20,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:20,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:20,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:20,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:20,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:20,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:20,320 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:20,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:20,339 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:20,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:20,339 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:20,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:34:20,341 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 09:34:20,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:20,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:20,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:20,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:20,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:20,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:20,352 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:20,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-28 09:34:20,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:20,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:20,371 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:20,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:34:20,372 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 09:34:20,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:20,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:20,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:20,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:20,380 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:20,380 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:20,411 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:20,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:20,430 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:20,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:20,431 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:20,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:34:20,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:34:20,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:20,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:20,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:20,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:20,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:20,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:20,446 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:20,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:20,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:20,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:20,466 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:20,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:34:20,468 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 09:34:20,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:20,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:20,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:20,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:20,486 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:20,486 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:20,513 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:34:20,537 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-28 09:34:20,537 INFO L444 ModelExtractionUtils]: 13 out of 25 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-10-28 09:34:20,537 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:20,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:20,543 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:20,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 09:34:20,545 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:34:20,558 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:34:20,559 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:34:20,559 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 09:34:20,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-28 09:34:20,584 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-10-28 09:34:20,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:20,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:34:20,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:20,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:34:20,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:20,682 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 09:34:20,682 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 09:34:20,683 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 09:34:20,692 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 09:34:20,722 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 09:34:20,722 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 09:34:20,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2021-10-28 09:34:20,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 2 letters. [2021-10-28 09:34:20,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:34:20,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2021-10-28 09:34:20,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:34:20,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2021-10-28 09:34:20,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:34:20,724 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 31 transitions. [2021-10-28 09:34:20,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:34:20,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 31 transitions. [2021-10-28 09:34:20,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-28 09:34:20,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 09:34:20,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions. [2021-10-28 09:34:20,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:34:20,726 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2021-10-28 09:34:20,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions. [2021-10-28 09:34:20,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-28 09:34:20,728 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 09:34:20,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2021-10-28 09:34:20,728 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2021-10-28 09:34:20,728 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2021-10-28 09:34:20,729 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:34:20,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 31 transitions. [2021-10-28 09:34:20,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:34:20,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:34:20,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:34:20,730 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:20,730 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:34:20,731 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 09:34:20,731 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 09:34:20,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:20,731 INFO L85 PathProgramCache]: Analyzing trace with hash -685992544, now seen corresponding path program 3 times [2021-10-28 09:34:20,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:20,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928140666] [2021-10-28 09:34:20,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:20,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:20,750 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:20,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:20,775 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:20,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:20,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 5 times [2021-10-28 09:34:20,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:20,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183513289] [2021-10-28 09:34:20,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:20,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:20,783 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:20,786 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:20,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:20,786 INFO L85 PathProgramCache]: Analyzing trace with hash -2108837149, now seen corresponding path program 3 times [2021-10-28 09:34:20,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:20,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356389722] [2021-10-28 09:34:20,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:20,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:20,883 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 09:34:20,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:20,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356389722] [2021-10-28 09:34:20,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356389722] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:34:20,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119777239] [2021-10-28 09:34:20,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:34:20,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:34:20,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:20,885 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:34:20,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-28 09:34:20,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-28 09:34:20,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:34:20,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:34:20,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:21,108 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 09:34:21,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119777239] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:34:21,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:34:21,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-10-28 09:34:21,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434012279] [2021-10-28 09:34:21,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:21,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:34:21,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:34:21,157 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 09:34:21,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:34:21,277 INFO L93 Difference]: Finished difference Result 48 states and 65 transitions. [2021-10-28 09:34:21,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:34:21,277 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 65 transitions. [2021-10-28 09:34:21,280 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 09:34:21,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 46 states and 62 transitions. [2021-10-28 09:34:21,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-10-28 09:34:21,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-28 09:34:21,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 62 transitions. [2021-10-28 09:34:21,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:34:21,282 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 62 transitions. [2021-10-28 09:34:21,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 62 transitions. [2021-10-28 09:34:21,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 39. [2021-10-28 09:34:21,287 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 09:34:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2021-10-28 09:34:21,288 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-10-28 09:34:21,288 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-10-28 09:34:21,288 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 09:34:21,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 53 transitions. [2021-10-28 09:34:21,289 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 09:34:21,289 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:34:21,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:34:21,290 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:21,290 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-28 09:34:21,290 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 09:34:21,291 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 09:34:21,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:21,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2108839069, now seen corresponding path program 4 times [2021-10-28 09:34:21,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:21,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526445622] [2021-10-28 09:34:21,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:21,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:21,306 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:21,323 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:21,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:21,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2219337, now seen corresponding path program 1 times [2021-10-28 09:34:21,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:21,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848784627] [2021-10-28 09:34:21,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:21,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:21,329 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:21,333 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:21,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:21,334 INFO L85 PathProgramCache]: Analyzing trace with hash 50792363, now seen corresponding path program 5 times [2021-10-28 09:34:21,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:21,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79235306] [2021-10-28 09:34:21,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:21,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:21,352 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:21,372 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:21,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:34:21 BoogieIcfgContainer [2021-10-28 09:34:21,915 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:34:21,922 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:34:21,922 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:34:21,922 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:34:21,922 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:34:15" (3/4) ... [2021-10-28 09:34:21,925 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:34:22,014 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b2be4c-0007-4a5e-ab12-f7d49f9509d6/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:34:22,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:34:22,016 INFO L168 Benchmark]: Toolchain (without parser) took 7710.23 ms. Allocated memory was 107.0 MB in the beginning and 174.1 MB in the end (delta: 67.1 MB). Free memory was 75.5 MB in the beginning and 141.0 MB in the end (delta: -65.6 MB). Peak memory consumption was 86.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:34:22,016 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory is still 59.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:34:22,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.74 ms. Allocated memory is still 107.0 MB. Free memory was 75.2 MB in the beginning and 75.3 MB in the end (delta: -129.0 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:34:22,017 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.71 ms. Allocated memory is still 107.0 MB. Free memory was 75.3 MB in the beginning and 73.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:34:22,017 INFO L168 Benchmark]: Boogie Preprocessor took 24.65 ms. Allocated memory is still 107.0 MB. Free memory was 73.7 MB in the beginning and 72.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:34:22,018 INFO L168 Benchmark]: RCFGBuilder took 391.80 ms. Allocated memory is still 107.0 MB. Free memory was 72.4 MB in the beginning and 62.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:34:22,018 INFO L168 Benchmark]: BuchiAutomizer took 6737.09 ms. Allocated memory was 107.0 MB in the beginning and 174.1 MB in the end (delta: 67.1 MB). Free memory was 62.7 MB in the beginning and 61.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 69.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:34:22,019 INFO L168 Benchmark]: Witness Printer took 92.75 ms. Allocated memory is still 174.1 MB. Free memory was 61.5 MB in the beginning and 141.0 MB in the end (delta: -79.6 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:34:22,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory is still 59.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 414.74 ms. Allocated memory is still 107.0 MB. Free memory was 75.2 MB in the beginning and 75.3 MB in the end (delta: -129.0 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.71 ms. Allocated memory is still 107.0 MB. Free memory was 75.3 MB in the beginning and 73.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.65 ms. Allocated memory is still 107.0 MB. Free memory was 73.7 MB in the beginning and 72.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 391.80 ms. Allocated memory is still 107.0 MB. Free memory was 72.4 MB in the beginning and 62.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6737.09 ms. Allocated memory was 107.0 MB in the beginning and 174.1 MB in the end (delta: 67.1 MB). Free memory was 62.7 MB in the beginning and 61.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 69.8 MB. Max. memory is 16.1 GB. * Witness Printer took 92.75 ms. Allocated memory is still 174.1 MB. Free memory was 61.5 MB in the beginning and 141.0 MB in the end (delta: -79.6 MB). Peak memory consumption was 4.3 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 6.6s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 5.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. 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, 0.1s 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: 25ms 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@451a1b28=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47d0bb2c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@576c33ab=0, length=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@7bfb7227=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@576c33ab=2, j=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@7622a295=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@7d4b239a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@174d1e7d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@49dc021e=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