./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum05.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum05.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aee69f990ab81a58f1fe8cd275c8a09f43ca6a442f73810f885d3d0c9a85d2b3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:37:37,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:37:37,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:37:37,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:37:37,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:37:37,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:37:37,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:37:37,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:37:37,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:37:37,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:37:37,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:37:37,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:37:37,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:37:37,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:37:37,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:37:37,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:37:37,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:37:37,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:37:37,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:37:37,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:37:37,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:37:37,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:37:37,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:37:37,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:37:37,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:37:37,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:37:37,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:37:37,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:37:37,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:37:37,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:37:37,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:37:37,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:37:37,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:37:37,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:37:37,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:37:37,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:37:37,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:37:37,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:37:37,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:37:37,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:37:37,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:37:37,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-19 05:37:38,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:37:38,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:37:38,003 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:37:38,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:37:38,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:37:38,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:37:38,005 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:37:38,006 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 05:37:38,006 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 05:37:38,006 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 05:37:38,007 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 05:37:38,008 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 05:37:38,008 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 05:37:38,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:37:38,008 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:37:38,009 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:37:38,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:37:38,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:37:38,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:37:38,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 05:37:38,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 05:37:38,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 05:37:38,011 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:37:38,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:37:38,011 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 05:37:38,011 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:37:38,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 05:37:38,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:37:38,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:37:38,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:37:38,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:37:38,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:37:38,017 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 05:37:38,018 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_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aee69f990ab81a58f1fe8cd275c8a09f43ca6a442f73810f885d3d0c9a85d2b3 [2021-11-19 05:37:38,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:37:38,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:37:38,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:37:38,333 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:37:38,333 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:37:38,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/reducercommutativity/rangesum05.i [2021-11-19 05:37:38,420 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/data/551981ae2/ceaac783bb9d49518a5df902481cf91a/FLAG73f275900 [2021-11-19 05:37:39,014 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:37:39,015 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/sv-benchmarks/c/reducercommutativity/rangesum05.i [2021-11-19 05:37:39,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/data/551981ae2/ceaac783bb9d49518a5df902481cf91a/FLAG73f275900 [2021-11-19 05:37:39,381 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/data/551981ae2/ceaac783bb9d49518a5df902481cf91a [2021-11-19 05:37:39,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:37:39,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:37:39,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:37:39,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:37:39,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:37:39,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:37:39" (1/1) ... [2021-11-19 05:37:39,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad5c560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:39, skipping insertion in model container [2021-11-19 05:37:39,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:37:39" (1/1) ... [2021-11-19 05:37:39,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:37:39,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:37:39,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/sv-benchmarks/c/reducercommutativity/rangesum05.i[1457,1470] [2021-11-19 05:37:39,679 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:37:39,687 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:37:39,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/sv-benchmarks/c/reducercommutativity/rangesum05.i[1457,1470] [2021-11-19 05:37:39,714 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:37:39,729 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:37:39,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:39 WrapperNode [2021-11-19 05:37:39,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:37:39,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:37:39,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:37:39,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:37:39,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:39" (1/1) ... [2021-11-19 05:37:39,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:39" (1/1) ... [2021-11-19 05:37:39,793 INFO L137 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 135 [2021-11-19 05:37:39,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:37:39,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:37:39,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:37:39,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:37:39,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:39" (1/1) ... [2021-11-19 05:37:39,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:39" (1/1) ... [2021-11-19 05:37:39,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:39" (1/1) ... [2021-11-19 05:37:39,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:39" (1/1) ... [2021-11-19 05:37:39,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:39" (1/1) ... [2021-11-19 05:37:39,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:39" (1/1) ... [2021-11-19 05:37:39,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:39" (1/1) ... [2021-11-19 05:37:39,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:37:39,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:37:39,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:37:39,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:37:39,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:39" (1/1) ... [2021-11-19 05:37:39,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:39,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:39,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:39,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 05:37:39,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:37:39,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:37:39,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 05:37:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 05:37:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:37:39,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:37:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 05:37:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 05:37:40,041 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:37:40,043 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:37:40,387 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:37:40,409 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:37:40,409 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-19 05:37:40,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:37:40 BoogieIcfgContainer [2021-11-19 05:37:40,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:37:40,415 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 05:37:40,415 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 05:37:40,419 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 05:37:40,420 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 05:37:40,420 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 05:37:39" (1/3) ... [2021-11-19 05:37:40,422 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70cce17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 05:37:40, skipping insertion in model container [2021-11-19 05:37:40,422 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 05:37:40,422 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:39" (2/3) ... [2021-11-19 05:37:40,423 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70cce17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 05:37:40, skipping insertion in model container [2021-11-19 05:37:40,423 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 05:37:40,423 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:37:40" (3/3) ... [2021-11-19 05:37:40,425 INFO L388 chiAutomizerObserver]: Analyzing ICFG rangesum05.i [2021-11-19 05:37:40,502 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 05:37:40,502 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 05:37:40,502 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 05:37:40,502 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 05:37:40,502 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 05:37:40,503 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 05:37:40,503 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 05:37:40,503 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 05:37:40,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 states have internal predecessors, (44), 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) [2021-11-19 05:37:40,580 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-11-19 05:37:40,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:37:40,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:37:40,587 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 05:37:40,587 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 05:37:40,587 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 05:37:40,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 states have internal predecessors, (44), 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) [2021-11-19 05:37:40,596 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-11-19 05:37:40,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:37:40,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:37:40,596 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 05:37:40,596 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 05:37:40,604 INFO L791 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);assume { :begin_inline_init_nondet } true;init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc init_nondet_#t~nondet2#1, init_nondet_#t~post1#1, init_nondet_~x#1.base, init_nondet_~x#1.offset, init_nondet_~i~0#1;init_nondet_~x#1.base, init_nondet_~x#1.offset := init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset;havoc init_nondet_~i~0#1;init_nondet_~i~0#1 := 0; 22#L17-3true [2021-11-19 05:37:40,604 INFO L793 eck$LassoCheckResult]: Loop: 22#L17-3true assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 11#L17-2true init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 22#L17-3true [2021-11-19 05:37:40,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:40,613 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-19 05:37:40,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:40,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214532168] [2021-11-19 05:37:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:40,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:40,804 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:40,873 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:40,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:40,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-11-19 05:37:40,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:40,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579894897] [2021-11-19 05:37:40,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:40,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:40,905 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:40,921 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:40,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:40,923 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-11-19 05:37:40,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:40,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091536570] [2021-11-19 05:37:40,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:40,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:40,981 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:41,018 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:41,560 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 05:37:41,561 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 05:37:41,561 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 05:37:41,561 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 05:37:41,562 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 05:37:41,562 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:41,562 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 05:37:41,562 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 05:37:41,563 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration1_Lasso [2021-11-19 05:37:41,563 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 05:37:41,563 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 05:37:41,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:41,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:42,305 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 05:37:42,311 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 05:37:42,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:42,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:42,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:42,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 05:37:42,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:42,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:42,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:42,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:42,340 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:42,341 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:42,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-19 05:37:42,363 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:42,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:42,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:42,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:42,412 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:42,424 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 [2021-11-19 05:37:42,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:42,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 05:37:42,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:42,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:42,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:42,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 05:37:42,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 05:37:42,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-19 05:37:42,458 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:42,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:42,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:42,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:42,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:42,515 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 [2021-11-19 05:37:42,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:42,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:42,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:42,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:42,537 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:42,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:42,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-19 05:37:42,548 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:42,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:42,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:42,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:42,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:42,597 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 [2021-11-19 05:37:42,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:42,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:42,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:42,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:42,628 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:42,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:42,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-19 05:37:42,648 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 05:37:42,701 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2021-11-19 05:37:42,702 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-11-19 05:37:42,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:42,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:42,706 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:42,708 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 05:37:42,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-19 05:37:42,736 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-19 05:37:42,736 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 05:37:42,737 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_init_nondet_~i~0#1, v_rep(select #length ULTIMATE.start_init_nondet_~x#1.base)_1) = -8*ULTIMATE.start_init_nondet_~i~0#1 + 9*v_rep(select #length ULTIMATE.start_init_nondet_~x#1.base)_1 Supporting invariants [] [2021-11-19 05:37:42,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:42,805 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-11-19 05:37:42,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:42,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 05:37:42,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:37:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:42,876 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 05:37:42,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:37:42,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:37:42,979 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 [2021-11-19 05:37:42,981 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 states have internal predecessors, (44), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-19 05:37:43,114 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 states have internal predecessors, (44), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 78 states and 122 transitions. Complement of second has 7 states. [2021-11-19 05:37:43,116 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 [2021-11-19 05:37:43,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-19 05:37:43,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 82 transitions. [2021-11-19 05:37:43,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 82 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-19 05:37:43,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 05:37:43,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 82 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-19 05:37:43,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 05:37:43,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 82 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-19 05:37:43,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 05:37:43,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 122 transitions. [2021-11-19 05:37:43,152 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-19 05:37:43,157 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 22 states and 32 transitions. [2021-11-19 05:37:43,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-11-19 05:37:43,159 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-11-19 05:37:43,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 32 transitions. [2021-11-19 05:37:43,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:37:43,161 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 32 transitions. [2021-11-19 05:37:43,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 32 transitions. [2021-11-19 05:37:43,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-19 05:37:43,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:37:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 32 transitions. [2021-11-19 05:37:43,201 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 32 transitions. [2021-11-19 05:37:43,201 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 32 transitions. [2021-11-19 05:37:43,201 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-19 05:37:43,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 32 transitions. [2021-11-19 05:37:43,203 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-19 05:37:43,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:37:43,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:37:43,204 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-19 05:37:43,205 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 05:37:43,205 INFO L791 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 182#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);assume { :begin_inline_init_nondet } true;init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc init_nondet_#t~nondet2#1, init_nondet_#t~post1#1, init_nondet_~x#1.base, init_nondet_~x#1.offset, init_nondet_~i~0#1;init_nondet_~x#1.base, init_nondet_~x#1.offset := init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset;havoc init_nondet_~i~0#1;init_nondet_~i~0#1 := 0; 193#L17-3 assume !(init_nondet_~i~0#1 < 5); 188#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 189#L28-3 [2021-11-19 05:37:43,205 INFO L793 eck$LassoCheckResult]: Loop: 189#L28-3 assume !!(rangesum_~i~1#1 < 5); 190#L29 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 191#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 189#L28-3 [2021-11-19 05:37:43,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:43,207 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-11-19 05:37:43,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:43,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643075074] [2021-11-19 05:37:43,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:43,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:43,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:37:43,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:37:43,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643075074] [2021-11-19 05:37:43,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643075074] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:37:43,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:37:43,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 05:37:43,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130308964] [2021-11-19 05:37:43,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:37:43,295 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 05:37:43,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:43,296 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 1 times [2021-11-19 05:37:43,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:43,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275056316] [2021-11-19 05:37:43,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:43,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:43,312 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:43,335 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:43,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:37:43,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:37:43,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:37:43,440 INFO L87 Difference]: Start difference. First operand 22 states and 32 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-19 05:37:43,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:37:43,459 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2021-11-19 05:37:43,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:37:43,462 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 32 transitions. [2021-11-19 05:37:43,466 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-19 05:37:43,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 32 transitions. [2021-11-19 05:37:43,477 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-11-19 05:37:43,477 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-11-19 05:37:43,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 32 transitions. [2021-11-19 05:37:43,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:37:43,478 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2021-11-19 05:37:43,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 32 transitions. [2021-11-19 05:37:43,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-11-19 05:37:43,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 21 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) [2021-11-19 05:37:43,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 31 transitions. [2021-11-19 05:37:43,482 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2021-11-19 05:37:43,482 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2021-11-19 05:37:43,482 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-19 05:37:43,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 31 transitions. [2021-11-19 05:37:43,483 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-19 05:37:43,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:37:43,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:37:43,484 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-19 05:37:43,484 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 05:37:43,484 INFO L791 eck$LassoCheckResult]: Stem: 232#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 233#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);assume { :begin_inline_init_nondet } true;init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc init_nondet_#t~nondet2#1, init_nondet_#t~post1#1, init_nondet_~x#1.base, init_nondet_~x#1.offset, init_nondet_~i~0#1;init_nondet_~x#1.base, init_nondet_~x#1.offset := init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset;havoc init_nondet_~i~0#1;init_nondet_~i~0#1 := 0; 245#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 246#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 247#L17-3 assume !(init_nondet_~i~0#1 < 5); 239#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 240#L28-3 [2021-11-19 05:37:43,484 INFO L793 eck$LassoCheckResult]: Loop: 240#L28-3 assume !!(rangesum_~i~1#1 < 5); 241#L29 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 242#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 240#L28-3 [2021-11-19 05:37:43,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:43,486 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2021-11-19 05:37:43,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:43,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588445775] [2021-11-19 05:37:43,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:43,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:43,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:37:43,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:37:43,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588445775] [2021-11-19 05:37:43,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588445775] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:37:43,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214620139] [2021-11-19 05:37:43,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:43,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:37:43,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:43,550 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:37:43,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-19 05:37:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:43,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 05:37:43,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:37:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:37:43,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:37:43,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:43,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:37:43,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214620139] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:37:43,713 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:37:43,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-19 05:37:43,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532773062] [2021-11-19 05:37:43,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:37:43,714 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 05:37:43,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:43,715 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 2 times [2021-11-19 05:37:43,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:43,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226572952] [2021-11-19 05:37:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:43,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:43,726 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:43,739 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:43,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:37:43,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:37:43,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:37:43,804 INFO L87 Difference]: Start difference. First operand 22 states and 31 transitions. cyclomatic complexity: 14 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:37:43,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:37:43,850 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2021-11-19 05:37:43,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:37:43,852 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2021-11-19 05:37:43,853 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-19 05:37:43,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 37 transitions. [2021-11-19 05:37:43,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-11-19 05:37:43,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-11-19 05:37:43,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 37 transitions. [2021-11-19 05:37:43,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:37:43,854 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-11-19 05:37:43,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 37 transitions. [2021-11-19 05:37:43,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-19 05:37:43,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 27 states have internal predecessors, (37), 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) [2021-11-19 05:37:43,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2021-11-19 05:37:43,857 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-11-19 05:37:43,857 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-11-19 05:37:43,858 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-19 05:37:43,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 37 transitions. [2021-11-19 05:37:43,858 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-19 05:37:43,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:37:43,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:37:43,859 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2021-11-19 05:37:43,859 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 05:37:43,860 INFO L791 eck$LassoCheckResult]: Stem: 322#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 323#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);assume { :begin_inline_init_nondet } true;init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc init_nondet_#t~nondet2#1, init_nondet_#t~post1#1, init_nondet_~x#1.base, init_nondet_~x#1.offset, init_nondet_~i~0#1;init_nondet_~x#1.base, init_nondet_~x#1.offset := init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset;havoc init_nondet_~i~0#1;init_nondet_~i~0#1 := 0; 334#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 335#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 336#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 337#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 349#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 348#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 347#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 346#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 345#L17-3 assume !(init_nondet_~i~0#1 < 5); 329#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 330#L28-3 [2021-11-19 05:37:43,860 INFO L793 eck$LassoCheckResult]: Loop: 330#L28-3 assume !!(rangesum_~i~1#1 < 5); 331#L29 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 332#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 330#L28-3 [2021-11-19 05:37:43,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:43,860 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 2 times [2021-11-19 05:37:43,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:43,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917003999] [2021-11-19 05:37:43,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:43,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:43,963 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:37:43,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:37:43,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917003999] [2021-11-19 05:37:43,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917003999] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:37:43,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538388223] [2021-11-19 05:37:43,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 05:37:43,966 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:37:43,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:43,967 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:37:43,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 05:37:44,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 05:37:44,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:37:44,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 05:37:44,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:37:44,089 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:37:44,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:37:44,148 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:37:44,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538388223] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:37:44,148 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:37:44,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2021-11-19 05:37:44,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574342392] [2021-11-19 05:37:44,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:37:44,151 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 05:37:44,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:44,151 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 3 times [2021-11-19 05:37:44,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:44,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010730344] [2021-11-19 05:37:44,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:44,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:44,164 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:44,177 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:44,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:37:44,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 05:37:44,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-19 05:37:44,250 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. cyclomatic complexity: 14 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:37:44,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:37:44,280 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2021-11-19 05:37:44,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:37:44,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2021-11-19 05:37:44,284 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-19 05:37:44,285 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 39 transitions. [2021-11-19 05:37:44,285 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-11-19 05:37:44,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-11-19 05:37:44,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 39 transitions. [2021-11-19 05:37:44,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:37:44,286 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-11-19 05:37:44,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 39 transitions. [2021-11-19 05:37:44,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-11-19 05:37:44,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3) internal successors, (39), 29 states have internal predecessors, (39), 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) [2021-11-19 05:37:44,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-11-19 05:37:44,290 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-11-19 05:37:44,290 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-11-19 05:37:44,290 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-19 05:37:44,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2021-11-19 05:37:44,291 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-19 05:37:44,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:37:44,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:37:44,292 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2021-11-19 05:37:44,292 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 05:37:44,293 INFO L791 eck$LassoCheckResult]: Stem: 457#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 458#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);assume { :begin_inline_init_nondet } true;init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc init_nondet_#t~nondet2#1, init_nondet_#t~post1#1, init_nondet_~x#1.base, init_nondet_~x#1.offset, init_nondet_~i~0#1;init_nondet_~x#1.base, init_nondet_~x#1.offset := init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset;havoc init_nondet_~i~0#1;init_nondet_~i~0#1 := 0; 470#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 471#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 472#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 473#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 486#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 485#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 484#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 483#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 482#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 481#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 480#L17-3 assume !(init_nondet_~i~0#1 < 5); 464#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 465#L28-3 [2021-11-19 05:37:44,293 INFO L793 eck$LassoCheckResult]: Loop: 465#L28-3 assume !!(rangesum_~i~1#1 < 5); 466#L29 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 467#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 465#L28-3 [2021-11-19 05:37:44,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:44,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 3 times [2021-11-19 05:37:44,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:44,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066822121] [2021-11-19 05:37:44,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:44,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:44,309 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:44,330 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:44,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:44,331 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 4 times [2021-11-19 05:37:44,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:44,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080383610] [2021-11-19 05:37:44,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:44,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:44,336 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:44,341 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:44,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:44,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1638582855, now seen corresponding path program 1 times [2021-11-19 05:37:44,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:44,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046993997] [2021-11-19 05:37:44,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:44,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:44,381 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-19 05:37:44,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:37:44,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046993997] [2021-11-19 05:37:44,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046993997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:37:44,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:37:44,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 05:37:44,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779017060] [2021-11-19 05:37:44,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:37:44,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:37:44,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:37:44,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:37:44,454 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:37:44,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:37:44,508 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-11-19 05:37:44,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:37:44,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 48 transitions. [2021-11-19 05:37:44,516 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-19 05:37:44,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 48 transitions. [2021-11-19 05:37:44,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-11-19 05:37:44,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-11-19 05:37:44,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2021-11-19 05:37:44,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:37:44,521 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2021-11-19 05:37:44,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2021-11-19 05:37:44,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2021-11-19 05:37:44,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.25) internal successors, (45), 35 states have internal predecessors, (45), 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) [2021-11-19 05:37:44,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2021-11-19 05:37:44,535 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-11-19 05:37:44,535 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-11-19 05:37:44,535 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-19 05:37:44,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 45 transitions. [2021-11-19 05:37:44,539 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-19 05:37:44,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:37:44,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:37:44,544 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1] [2021-11-19 05:37:44,544 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 05:37:44,545 INFO L791 eck$LassoCheckResult]: Stem: 534#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 535#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);assume { :begin_inline_init_nondet } true;init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc init_nondet_#t~nondet2#1, init_nondet_#t~post1#1, init_nondet_~x#1.base, init_nondet_~x#1.offset, init_nondet_~i~0#1;init_nondet_~x#1.base, init_nondet_~x#1.offset := init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset;havoc init_nondet_~i~0#1;init_nondet_~i~0#1 := 0; 548#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 549#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 550#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 551#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 568#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 567#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 566#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 565#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 562#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 561#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 560#L17-3 assume !(init_nondet_~i~0#1 < 5); 542#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 543#L28-3 assume !!(rangesum_~i~1#1 < 5); 540#L29 assume !(rangesum_~i~1#1 > 2); 541#L28-2 [2021-11-19 05:37:44,545 INFO L793 eck$LassoCheckResult]: Loop: 541#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 544#L28-3 assume !!(rangesum_~i~1#1 < 5); 564#L29 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 541#L28-2 [2021-11-19 05:37:44,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:44,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1715425498, now seen corresponding path program 1 times [2021-11-19 05:37:44,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:44,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470734769] [2021-11-19 05:37:44,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:44,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:44,570 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:44,607 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:44,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:44,610 INFO L85 PathProgramCache]: Analyzing trace with hash 60353, now seen corresponding path program 5 times [2021-11-19 05:37:44,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:44,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507604187] [2021-11-19 05:37:44,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:44,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:44,622 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:44,627 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:44,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:44,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1574813624, now seen corresponding path program 1 times [2021-11-19 05:37:44,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:44,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776243789] [2021-11-19 05:37:44,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:44,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:44,690 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-19 05:37:44,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:37:44,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776243789] [2021-11-19 05:37:44,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776243789] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:37:44,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634405394] [2021-11-19 05:37:44,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:44,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:37:44,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:44,720 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:37:44,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 05:37:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:44,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 05:37:44,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:37:44,858 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-19 05:37:44,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:37:44,902 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-19 05:37:44,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634405394] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:37:44,903 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:37:44,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-11-19 05:37:44,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94066706] [2021-11-19 05:37:44,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:37:44,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:37:44,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:37:44,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:37:44,977 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. cyclomatic complexity: 14 Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2021-11-19 05:37:45,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:37:45,068 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2021-11-19 05:37:45,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:37:45,070 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 66 transitions. [2021-11-19 05:37:45,071 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2021-11-19 05:37:45,072 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 57 states and 66 transitions. [2021-11-19 05:37:45,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2021-11-19 05:37:45,072 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2021-11-19 05:37:45,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 66 transitions. [2021-11-19 05:37:45,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:37:45,073 INFO L681 BuchiCegarLoop]: Abstraction has 57 states and 66 transitions. [2021-11-19 05:37:45,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 66 transitions. [2021-11-19 05:37:45,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2021-11-19 05:37:45,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 53 states have internal predecessors, (63), 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) [2021-11-19 05:37:45,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2021-11-19 05:37:45,078 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 63 transitions. [2021-11-19 05:37:45,078 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 63 transitions. [2021-11-19 05:37:45,078 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-19 05:37:45,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 63 transitions. [2021-11-19 05:37:45,079 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-19 05:37:45,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:37:45,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:37:45,080 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 3, 3, 2, 1, 1, 1, 1] [2021-11-19 05:37:45,080 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 05:37:45,081 INFO L791 eck$LassoCheckResult]: Stem: 746#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 747#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);assume { :begin_inline_init_nondet } true;init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc init_nondet_#t~nondet2#1, init_nondet_#t~post1#1, init_nondet_~x#1.base, init_nondet_~x#1.offset, init_nondet_~i~0#1;init_nondet_~x#1.base, init_nondet_~x#1.offset := init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset;havoc init_nondet_~i~0#1;init_nondet_~i~0#1 := 0; 759#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 760#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 761#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 762#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 786#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 785#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 784#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 783#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 782#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 776#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 775#L17-3 assume !(init_nondet_~i~0#1 < 5); 752#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 753#L28-3 assume !!(rangesum_~i~1#1 < 5); 754#L29 assume !(rangesum_~i~1#1 > 2); 755#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 756#L28-3 assume !!(rangesum_~i~1#1 < 5); 794#L29 assume !(rangesum_~i~1#1 > 2); 793#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 792#L28-3 assume !!(rangesum_~i~1#1 < 5); 790#L29 assume !(rangesum_~i~1#1 > 2); 781#L28-2 [2021-11-19 05:37:45,081 INFO L793 eck$LassoCheckResult]: Loop: 781#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 779#L28-3 assume !!(rangesum_~i~1#1 < 5); 780#L29 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 781#L28-2 [2021-11-19 05:37:45,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:45,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1344808230, now seen corresponding path program 1 times [2021-11-19 05:37:45,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:45,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504062589] [2021-11-19 05:37:45,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:45,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:45,104 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:45,137 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:45,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:45,138 INFO L85 PathProgramCache]: Analyzing trace with hash 60353, now seen corresponding path program 6 times [2021-11-19 05:37:45,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:45,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987027418] [2021-11-19 05:37:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:45,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:45,143 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:45,147 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:45,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:45,148 INFO L85 PathProgramCache]: Analyzing trace with hash 272987720, now seen corresponding path program 2 times [2021-11-19 05:37:45,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:45,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623754732] [2021-11-19 05:37:45,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:45,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:45,167 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:45,192 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:46,669 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 05:37:46,669 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 05:37:46,669 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 05:37:46,669 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 05:37:46,669 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 05:37:46,670 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:46,670 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 05:37:46,670 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 05:37:46,670 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration7_Lasso [2021-11-19 05:37:46,670 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 05:37:46,670 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 05:37:46,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:46,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:46,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:46,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:46,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:46,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:46,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:46,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:47,505 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 05:37:47,506 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 05:37:47,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:47,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:47,516 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:47,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-19 05:37:47,530 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 [2021-11-19 05:37:47,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:47,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 05:37:47,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:47,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:47,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:47,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 05:37:47,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 05:37:47,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:47,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:47,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:47,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:47,577 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:47,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-19 05:37:47,612 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 05:37:47,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:47,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 05:37:47,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:47,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:47,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:47,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 05:37:47,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 05:37:47,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:47,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:47,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:47,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:47,697 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:47,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-19 05:37:47,702 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 [2021-11-19 05:37:47,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:47,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 05:37:47,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:47,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:47,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:47,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 05:37:47,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 05:37:47,724 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:47,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:47,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:47,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:47,779 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:47,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-19 05:37:47,786 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 [2021-11-19 05:37:47,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:47,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:47,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:47,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:47,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:47,800 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:47,810 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:47,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:47,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:47,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:47,849 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:47,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-19 05:37:47,855 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 [2021-11-19 05:37:47,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:47,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 05:37:47,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:47,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:47,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:47,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 05:37:47,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 05:37:47,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:47,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:47,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:47,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:47,892 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:47,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-19 05:37:47,893 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 [2021-11-19 05:37:47,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:47,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 05:37:47,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:47,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:47,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:47,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 05:37:47,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 05:37:47,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:47,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:47,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:47,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:47,940 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:47,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-19 05:37:47,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 05:37:47,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:47,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 05:37:47,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:47,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:47,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:47,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 05:37:47,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 05:37:47,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:47,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:47,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:47,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:47,978 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:47,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-19 05:37:47,981 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 [2021-11-19 05:37:47,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:47,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:47,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:47,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:47,992 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:47,992 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:47,996 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:48,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:48,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:48,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:48,020 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:48,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-19 05:37:48,021 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 [2021-11-19 05:37:48,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:48,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:48,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:48,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:48,033 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:48,033 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:48,058 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:48,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:48,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:48,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:48,109 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:48,115 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 05:37:48,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:48,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:48,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:48,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:48,131 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:48,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:48,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-19 05:37:48,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:48,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:48,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:48,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:48,193 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:48,208 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 [2021-11-19 05:37:48,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:48,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:48,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:48,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:48,222 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:48,222 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:48,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-19 05:37:48,246 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:48,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:48,283 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:48,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:48,284 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:48,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-19 05:37:48,287 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 [2021-11-19 05:37:48,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:48,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:48,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:48,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:48,298 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:48,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:48,306 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:48,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:48,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:48,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:48,336 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:48,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-19 05:37:48,338 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 [2021-11-19 05:37:48,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:48,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:48,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:48,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:48,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:48,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:48,361 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:48,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:48,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:48,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:48,384 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:48,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-19 05:37:48,386 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 [2021-11-19 05:37:48,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:48,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:48,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:48,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:48,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:48,395 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:48,398 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:48,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:48,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:48,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:48,419 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:48,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-19 05:37:48,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 05:37:48,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:48,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:48,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:48,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:48,429 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:48,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:48,432 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:48,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:48,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:48,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:48,452 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:48,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-19 05:37:48,454 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 [2021-11-19 05:37:48,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:48,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:48,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:48,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:48,464 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:48,464 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:48,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 05:37:48,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:48,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:48,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:48,520 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:48,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-19 05:37:48,524 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 [2021-11-19 05:37:48,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:48,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:48,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:48,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:48,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 05:37:48,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 05:37:48,561 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 05:37:48,597 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-11-19 05:37:48,597 INFO L444 ModelExtractionUtils]: 15 out of 34 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-11-19 05:37:48,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:48,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:48,602 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:48,609 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 05:37:48,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-19 05:37:48,627 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-19 05:37:48,627 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 05:37:48,627 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_rangesum_~i~1#1) = -2*ULTIMATE.start_rangesum_~i~1#1 + 7 Supporting invariants [] [2021-11-19 05:37:48,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:48,696 INFO L297 tatePredicateManager]: 12 out of 12 supporting invariants were superfluous and have been removed [2021-11-19 05:37:48,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:48,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 05:37:48,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:37:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:48,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 05:37:48,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:37:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:37:48,822 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-19 05:37:48,822 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 54 states and 63 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:37:48,852 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 54 states and 63 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 73 transitions. Complement of second has 7 states. [2021-11-19 05:37:48,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-19 05:37:48,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:37:48,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-11-19 05:37:48,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 22 letters. Loop has 3 letters. [2021-11-19 05:37:48,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 05:37:48,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 25 letters. Loop has 3 letters. [2021-11-19 05:37:48,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 05:37:48,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 22 letters. Loop has 6 letters. [2021-11-19 05:37:48,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 05:37:48,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 73 transitions. [2021-11-19 05:37:48,856 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-11-19 05:37:48,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 56 states and 67 transitions. [2021-11-19 05:37:48,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-11-19 05:37:48,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2021-11-19 05:37:48,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 67 transitions. [2021-11-19 05:37:48,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 05:37:48,858 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 67 transitions. [2021-11-19 05:37:48,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 67 transitions. [2021-11-19 05:37:48,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-11-19 05:37:48,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 55 states have internal predecessors, (67), 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) [2021-11-19 05:37:48,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2021-11-19 05:37:48,862 INFO L704 BuchiCegarLoop]: Abstraction has 56 states and 67 transitions. [2021-11-19 05:37:48,862 INFO L587 BuchiCegarLoop]: Abstraction has 56 states and 67 transitions. [2021-11-19 05:37:48,862 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-19 05:37:48,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 67 transitions. [2021-11-19 05:37:48,863 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-11-19 05:37:48,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:37:48,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:37:48,864 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:37:48,864 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 05:37:48,865 INFO L791 eck$LassoCheckResult]: Stem: 1009#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 1010#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);assume { :begin_inline_init_nondet } true;init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc init_nondet_#t~nondet2#1, init_nondet_#t~post1#1, init_nondet_~x#1.base, init_nondet_~x#1.offset, init_nondet_~i~0#1;init_nondet_~x#1.base, init_nondet_~x#1.offset := init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset;havoc init_nondet_~i~0#1;init_nondet_~i~0#1 := 0; 1025#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1026#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1027#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1028#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1054#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1052#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1051#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1049#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1047#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1043#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1042#L17-3 assume !(init_nondet_~i~0#1 < 5); 1015#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 1016#L28-3 assume !!(rangesum_~i~1#1 < 5); 1017#L29 assume !(rangesum_~i~1#1 > 2); 1018#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1021#L28-3 assume !!(rangesum_~i~1#1 < 5); 1019#L29 assume !(rangesum_~i~1#1 > 2); 1020#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1050#L28-3 assume !!(rangesum_~i~1#1 < 5); 1048#L29 assume !(rangesum_~i~1#1 > 2); 1046#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1036#L28-3 assume !(rangesum_~i~1#1 < 5); 1037#L28-4 assume !(0 != rangesum_~cnt~0#1);rangesum_#res#1 := 0; 1030#L37 main_#t~ret5#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 1031#L28-8 assume !!(rangesum_~i~1#1 < 5); 1057#L29-2 assume !(rangesum_~i~1#1 > 2); 1029#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1013#L28-8 assume !!(rangesum_~i~1#1 < 5); 1014#L29-2 assume !(rangesum_~i~1#1 > 2); 1041#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1056#L28-8 assume !!(rangesum_~i~1#1 < 5); 1055#L29-2 assume !(rangesum_~i~1#1 > 2); 1053#L28-7 [2021-11-19 05:37:48,865 INFO L793 eck$LassoCheckResult]: Loop: 1053#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1044#L28-8 assume !!(rangesum_~i~1#1 < 5); 1045#L29-2 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 1053#L28-7 [2021-11-19 05:37:48,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:48,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1909073688, now seen corresponding path program 1 times [2021-11-19 05:37:48,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:48,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383168348] [2021-11-19 05:37:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:48,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:48,901 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-19 05:37:48,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:37:48,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383168348] [2021-11-19 05:37:48,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383168348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:37:48,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:37:48,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 05:37:48,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021792210] [2021-11-19 05:37:48,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:37:48,903 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 05:37:48,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:48,903 INFO L85 PathProgramCache]: Analyzing trace with hash 85178, now seen corresponding path program 1 times [2021-11-19 05:37:48,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:48,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301575309] [2021-11-19 05:37:48,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:48,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:48,908 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:48,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:48,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:37:48,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 05:37:48,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 05:37:48,979 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:37:49,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:37:49,034 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2021-11-19 05:37:49,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 05:37:49,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 86 transitions. [2021-11-19 05:37:49,036 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 16 [2021-11-19 05:37:49,037 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 69 states and 82 transitions. [2021-11-19 05:37:49,037 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2021-11-19 05:37:49,037 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2021-11-19 05:37:49,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 82 transitions. [2021-11-19 05:37:49,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 05:37:49,037 INFO L681 BuchiCegarLoop]: Abstraction has 69 states and 82 transitions. [2021-11-19 05:37:49,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 82 transitions. [2021-11-19 05:37:49,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2021-11-19 05:37:49,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 57 states have internal predecessors, (67), 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) [2021-11-19 05:37:49,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2021-11-19 05:37:49,041 INFO L704 BuchiCegarLoop]: Abstraction has 58 states and 67 transitions. [2021-11-19 05:37:49,041 INFO L587 BuchiCegarLoop]: Abstraction has 58 states and 67 transitions. [2021-11-19 05:37:49,041 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-19 05:37:49,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 67 transitions. [2021-11-19 05:37:49,042 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-11-19 05:37:49,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:37:49,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:37:49,047 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:37:49,047 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 05:37:49,047 INFO L791 eck$LassoCheckResult]: Stem: 1143#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 1144#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);assume { :begin_inline_init_nondet } true;init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc init_nondet_#t~nondet2#1, init_nondet_#t~post1#1, init_nondet_~x#1.base, init_nondet_~x#1.offset, init_nondet_~i~0#1;init_nondet_~x#1.base, init_nondet_~x#1.offset := init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset;havoc init_nondet_~i~0#1;init_nondet_~i~0#1 := 0; 1159#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1160#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1161#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1162#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1187#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1186#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1185#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1184#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1183#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1178#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1177#L17-3 assume !(init_nondet_~i~0#1 < 5); 1149#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 1150#L28-3 assume !!(rangesum_~i~1#1 < 5); 1151#L29 assume !(rangesum_~i~1#1 > 2); 1152#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1155#L28-3 assume !!(rangesum_~i~1#1 < 5); 1195#L29 assume !(rangesum_~i~1#1 > 2); 1156#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1157#L28-3 assume !!(rangesum_~i~1#1 < 5); 1153#L29 assume !(rangesum_~i~1#1 > 2); 1154#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1189#L28-3 assume !!(rangesum_~i~1#1 < 5); 1188#L29 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 1179#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1171#L28-3 assume !(rangesum_~i~1#1 < 5); 1172#L28-4 assume !(0 != rangesum_~cnt~0#1);rangesum_#res#1 := 0; 1164#L37 main_#t~ret5#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 1165#L28-8 assume !!(rangesum_~i~1#1 < 5); 1176#L29-2 assume !(rangesum_~i~1#1 > 2); 1163#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1147#L28-8 assume !!(rangesum_~i~1#1 < 5); 1148#L29-2 assume !(rangesum_~i~1#1 > 2); 1194#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1193#L28-8 assume !!(rangesum_~i~1#1 < 5); 1192#L29-2 assume !(rangesum_~i~1#1 > 2); 1190#L28-7 [2021-11-19 05:37:49,048 INFO L793 eck$LassoCheckResult]: Loop: 1190#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1191#L28-8 assume !!(rangesum_~i~1#1 < 5); 1181#L29-2 assume !(rangesum_~i~1#1 > 2); 1190#L28-7 [2021-11-19 05:37:49,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:49,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1744047494, now seen corresponding path program 1 times [2021-11-19 05:37:49,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:49,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189786088] [2021-11-19 05:37:49,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:49,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:49,107 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 05:37:49,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:37:49,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189786088] [2021-11-19 05:37:49,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189786088] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:37:49,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397271048] [2021-11-19 05:37:49,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:49,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:37:49,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:49,109 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:37:49,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-19 05:37:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:49,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 05:37:49,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:37:49,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:49,281 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 05:37:49,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:37:49,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397271048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:37:49,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 05:37:49,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-19 05:37:49,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945753180] [2021-11-19 05:37:49,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:37:49,283 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 05:37:49,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:49,284 INFO L85 PathProgramCache]: Analyzing trace with hash 85180, now seen corresponding path program 1 times [2021-11-19 05:37:49,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:49,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522041463] [2021-11-19 05:37:49,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:49,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:49,287 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:49,289 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:49,304 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 05:37:49,305 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 05:37:49,305 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 05:37:49,305 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 05:37:49,305 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 05:37:49,305 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:49,305 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 05:37:49,306 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 05:37:49,306 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration9_Loop [2021-11-19 05:37:49,306 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 05:37:49,306 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 05:37:49,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:49,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:49,331 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 05:37:49,332 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 05:37:49,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:49,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:49,335 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:49,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 05:37:49,343 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 05:37:49,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-19 05:37:49,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:49,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:49,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:49,372 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:49,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-19 05:37:49,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 05:37:49,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 05:37:49,469 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 05:37:49,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-11-19 05:37:49,472 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 05:37:49,472 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 05:37:49,472 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 05:37:49,472 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 05:37:49,472 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 05:37:49,472 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:49,472 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 05:37:49,472 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 05:37:49,472 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration9_Loop [2021-11-19 05:37:49,472 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 05:37:49,472 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 05:37:49,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:49,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:37:49,499 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 05:37:49,500 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 05:37:49,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:49,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:49,501 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:49,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-19 05:37:49,503 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 [2021-11-19 05:37:49,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 05:37:49,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 05:37:49,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 05:37:49,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 05:37:49,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 05:37:49,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 05:37:49,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 05:37:49,516 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 05:37:49,521 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-19 05:37:49,522 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-19 05:37:49,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:37:49,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:49,523 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:37:49,524 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 05:37:49,524 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-19 05:37:49,524 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 05:37:49,525 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_rangesum_~i~1#1) = -2*ULTIMATE.start_rangesum_~i~1#1 + 3 Supporting invariants [] [2021-11-19 05:37:49,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-19 05:37:49,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:49,549 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-19 05:37:49,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:49,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 05:37:49,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:37:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:49,706 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 05:37:49,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:37:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:37:49,722 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 [2021-11-19 05:37:49,723 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 67 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-19 05:37:49,756 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 67 transitions. cyclomatic complexity: 14. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 71 states and 83 transitions. Complement of second has 5 states. [2021-11-19 05:37:49,758 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 [2021-11-19 05:37:49,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-19 05:37:49,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2021-11-19 05:37:49,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 37 letters. Loop has 3 letters. [2021-11-19 05:37:49,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 05:37:49,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 40 letters. Loop has 3 letters. [2021-11-19 05:37:49,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 05:37:49,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 37 letters. Loop has 6 letters. [2021-11-19 05:37:49,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 05:37:49,761 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 83 transitions. [2021-11-19 05:37:49,762 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-11-19 05:37:49,762 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 62 states and 72 transitions. [2021-11-19 05:37:49,763 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-11-19 05:37:49,763 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-11-19 05:37:49,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 72 transitions. [2021-11-19 05:37:49,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 05:37:49,763 INFO L681 BuchiCegarLoop]: Abstraction has 62 states and 72 transitions. [2021-11-19 05:37:49,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 72 transitions. [2021-11-19 05:37:49,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2021-11-19 05:37:49,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 60 states have internal predecessors, (71), 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) [2021-11-19 05:37:49,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2021-11-19 05:37:49,767 INFO L704 BuchiCegarLoop]: Abstraction has 61 states and 71 transitions. [2021-11-19 05:37:49,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:37:49,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 05:37:49,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:37:49,768 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:37:49,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:37:49,790 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2021-11-19 05:37:49,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 05:37:49,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 85 transitions. [2021-11-19 05:37:49,791 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-19 05:37:49,792 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 72 states and 85 transitions. [2021-11-19 05:37:49,792 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-11-19 05:37:49,792 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2021-11-19 05:37:49,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 85 transitions. [2021-11-19 05:37:49,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 05:37:49,793 INFO L681 BuchiCegarLoop]: Abstraction has 72 states and 85 transitions. [2021-11-19 05:37:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 85 transitions. [2021-11-19 05:37:49,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 61. [2021-11-19 05:37:49,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.1311475409836065) internal successors, (69), 60 states have internal predecessors, (69), 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) [2021-11-19 05:37:49,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2021-11-19 05:37:49,797 INFO L704 BuchiCegarLoop]: Abstraction has 61 states and 69 transitions. [2021-11-19 05:37:49,797 INFO L587 BuchiCegarLoop]: Abstraction has 61 states and 69 transitions. [2021-11-19 05:37:49,797 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-19 05:37:49,797 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 69 transitions. [2021-11-19 05:37:49,798 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-11-19 05:37:49,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:37:49,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:37:49,799 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:37:49,799 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 05:37:49,800 INFO L791 eck$LassoCheckResult]: Stem: 1655#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 1656#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);assume { :begin_inline_init_nondet } true;init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc init_nondet_#t~nondet2#1, init_nondet_#t~post1#1, init_nondet_~x#1.base, init_nondet_~x#1.offset, init_nondet_~i~0#1;init_nondet_~x#1.base, init_nondet_~x#1.offset := init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset;havoc init_nondet_~i~0#1;init_nondet_~i~0#1 := 0; 1672#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1673#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1674#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1675#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1702#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1701#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1700#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1698#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1697#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 1694#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1693#L17-3 assume !(init_nondet_~i~0#1 < 5); 1663#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 1664#L28-3 assume !!(rangesum_~i~1#1 < 5); 1665#L29 assume !(rangesum_~i~1#1 > 2); 1666#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1669#L28-3 assume !!(rangesum_~i~1#1 < 5); 1703#L29 assume !(rangesum_~i~1#1 > 2); 1704#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1705#L28-3 assume !!(rangesum_~i~1#1 < 5); 1667#L29 assume !(rangesum_~i~1#1 > 2); 1668#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1670#L28-3 assume !!(rangesum_~i~1#1 < 5); 1687#L29 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 1699#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1685#L28-3 assume !(rangesum_~i~1#1 < 5); 1686#L28-4 assume 0 != rangesum_~cnt~0#1;rangesum_#res#1 := (if (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 <= 2147483647 then (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 else (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 - 4294967296); 1679#L37 main_#t~ret5#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 1680#L28-8 assume !!(rangesum_~i~1#1 < 5); 1691#L29-2 assume !(rangesum_~i~1#1 > 2); 1676#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1661#L28-8 assume !!(rangesum_~i~1#1 < 5); 1662#L29-2 assume !(rangesum_~i~1#1 > 2); 1692#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1711#L28-8 assume !!(rangesum_~i~1#1 < 5); 1707#L29-2 assume !(rangesum_~i~1#1 > 2); 1706#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1659#L28-8 assume !!(rangesum_~i~1#1 < 5); 1660#L29-2 [2021-11-19 05:37:49,800 INFO L793 eck$LassoCheckResult]: Loop: 1660#L29-2 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 1696#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1695#L28-8 assume !!(rangesum_~i~1#1 < 5); 1660#L29-2 [2021-11-19 05:37:49,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:49,800 INFO L85 PathProgramCache]: Analyzing trace with hash 734232641, now seen corresponding path program 1 times [2021-11-19 05:37:49,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:49,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572565530] [2021-11-19 05:37:49,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:49,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:49,811 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-19 05:37:49,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466723764] [2021-11-19 05:37:49,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:49,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:37:49,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:49,813 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:37:49,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-19 05:37:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:37:49,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 05:37:49,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:37:50,040 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-19 05:37:50,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:37:50,163 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-19 05:37:50,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:37:50,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572565530] [2021-11-19 05:37:50,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 05:37:50,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466723764] [2021-11-19 05:37:50,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466723764] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:37:50,164 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 05:37:50,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-11-19 05:37:50,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796433689] [2021-11-19 05:37:50,165 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 05:37:50,167 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 05:37:50,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:50,168 INFO L85 PathProgramCache]: Analyzing trace with hash 81548, now seen corresponding path program 2 times [2021-11-19 05:37:50,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:50,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318810036] [2021-11-19 05:37:50,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:50,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:50,172 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:50,179 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:50,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:37:50,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:37:50,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:37:50,245 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. cyclomatic complexity: 14 Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:37:50,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:37:50,347 INFO L93 Difference]: Finished difference Result 80 states and 91 transitions. [2021-11-19 05:37:50,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:37:50,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 91 transitions. [2021-11-19 05:37:50,349 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-11-19 05:37:50,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 78 states and 89 transitions. [2021-11-19 05:37:50,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-11-19 05:37:50,351 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2021-11-19 05:37:50,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 89 transitions. [2021-11-19 05:37:50,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 05:37:50,351 INFO L681 BuchiCegarLoop]: Abstraction has 78 states and 89 transitions. [2021-11-19 05:37:50,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 89 transitions. [2021-11-19 05:37:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 67. [2021-11-19 05:37:50,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 67 states have (on average 1.1343283582089552) internal successors, (76), 66 states have internal predecessors, (76), 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) [2021-11-19 05:37:50,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 76 transitions. [2021-11-19 05:37:50,358 INFO L704 BuchiCegarLoop]: Abstraction has 67 states and 76 transitions. [2021-11-19 05:37:50,359 INFO L587 BuchiCegarLoop]: Abstraction has 67 states and 76 transitions. [2021-11-19 05:37:50,359 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-11-19 05:37:50,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 67 states and 76 transitions. [2021-11-19 05:37:50,360 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-11-19 05:37:50,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:37:50,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:37:50,364 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:37:50,364 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 05:37:50,367 INFO L791 eck$LassoCheckResult]: Stem: 2034#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 2035#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);assume { :begin_inline_init_nondet } true;init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc init_nondet_#t~nondet2#1, init_nondet_#t~post1#1, init_nondet_~x#1.base, init_nondet_~x#1.offset, init_nondet_~i~0#1;init_nondet_~x#1.base, init_nondet_~x#1.offset := init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset;havoc init_nondet_~i~0#1;init_nondet_~i~0#1 := 0; 2053#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 2054#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2055#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 2056#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2088#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 2086#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2084#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 2082#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2078#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 2074#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2073#L17-3 assume !(init_nondet_~i~0#1 < 5); 2042#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 2043#L28-3 assume !!(rangesum_~i~1#1 < 5); 2044#L29 assume !(rangesum_~i~1#1 > 2); 2045#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2048#L28-3 assume !!(rangesum_~i~1#1 < 5); 2067#L29 assume !(rangesum_~i~1#1 > 2); 2049#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2050#L28-3 assume !!(rangesum_~i~1#1 < 5); 2046#L29 assume !(rangesum_~i~1#1 > 2); 2047#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2094#L28-3 assume !!(rangesum_~i~1#1 < 5); 2093#L29 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 2081#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2083#L28-3 assume !!(rangesum_~i~1#1 < 5); 2079#L29 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 2080#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2065#L28-3 assume !(rangesum_~i~1#1 < 5); 2066#L28-4 assume 0 != rangesum_~cnt~0#1;rangesum_#res#1 := (if (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 <= 2147483647 then (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 else (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 - 4294967296); 2060#L37 main_#t~ret5#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 2038#L28-8 assume !!(rangesum_~i~1#1 < 5); 2039#L29-2 assume !(rangesum_~i~1#1 > 2); 2057#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2058#L28-8 assume !!(rangesum_~i~1#1 < 5); 2071#L29-2 assume !(rangesum_~i~1#1 > 2); 2072#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2095#L28-8 assume !!(rangesum_~i~1#1 < 5); 2092#L29-2 assume !(rangesum_~i~1#1 > 2); 2091#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2090#L28-8 assume !!(rangesum_~i~1#1 < 5); 2089#L29-2 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 2087#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2085#L28-8 assume !!(rangesum_~i~1#1 < 5); 2076#L29-2 [2021-11-19 05:37:50,369 INFO L793 eck$LassoCheckResult]: Loop: 2076#L29-2 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 2077#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2075#L28-8 assume !!(rangesum_~i~1#1 < 5); 2076#L29-2 [2021-11-19 05:37:50,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:50,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1040814406, now seen corresponding path program 1 times [2021-11-19 05:37:50,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:50,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929703935] [2021-11-19 05:37:50,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:50,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:50,380 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-19 05:37:50,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [891313880] [2021-11-19 05:37:50,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:50,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:37:50,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:50,385 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:37:50,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-19 05:37:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:50,465 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:50,523 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:50,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:50,523 INFO L85 PathProgramCache]: Analyzing trace with hash 81548, now seen corresponding path program 3 times [2021-11-19 05:37:50,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:50,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203275578] [2021-11-19 05:37:50,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:50,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:50,527 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:50,530 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:50,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:50,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1533007565, now seen corresponding path program 2 times [2021-11-19 05:37:50,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:50,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822261111] [2021-11-19 05:37:50,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:50,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:50,540 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-19 05:37:50,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1337594257] [2021-11-19 05:37:50,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 05:37:50,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:37:50,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:50,555 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:37:50,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-11-19 05:37:50,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 05:37:50,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:37:50,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 05:37:50,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:37:50,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-19 05:37:50,831 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-19 05:37:50,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 05:37:50,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:37:50,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822261111] [2021-11-19 05:37:50,832 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 05:37:50,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337594257] [2021-11-19 05:37:50,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337594257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:37:50,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:37:50,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 05:37:50,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991277009] [2021-11-19 05:37:50,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:37:50,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:37:50,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 05:37:50,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:37:50,894 INFO L87 Difference]: Start difference. First operand 67 states and 76 transitions. cyclomatic complexity: 15 Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2021-11-19 05:37:50,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:37:50,991 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2021-11-19 05:37:50,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:37:50,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 82 transitions. [2021-11-19 05:37:50,993 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-19 05:37:50,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 66 states and 70 transitions. [2021-11-19 05:37:50,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-11-19 05:37:50,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-11-19 05:37:50,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 70 transitions. [2021-11-19 05:37:50,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 05:37:50,994 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 70 transitions. [2021-11-19 05:37:50,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 70 transitions. [2021-11-19 05:37:50,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 56. [2021-11-19 05:37:50,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.0714285714285714) internal successors, (60), 55 states have internal predecessors, (60), 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) [2021-11-19 05:37:50,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-11-19 05:37:50,997 INFO L704 BuchiCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-11-19 05:37:50,997 INFO L587 BuchiCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-11-19 05:37:50,997 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-11-19 05:37:50,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 60 transitions. [2021-11-19 05:37:50,998 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-19 05:37:50,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:37:50,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:37:51,000 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:37:51,000 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 05:37:51,001 INFO L791 eck$LassoCheckResult]: Stem: 2330#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 2331#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(20);assume { :begin_inline_init_nondet } true;init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc init_nondet_#t~nondet2#1, init_nondet_#t~post1#1, init_nondet_~x#1.base, init_nondet_~x#1.offset, init_nondet_~i~0#1;init_nondet_~x#1.base, init_nondet_~x#1.offset := init_nondet_#in~x#1.base, init_nondet_#in~x#1.offset;havoc init_nondet_~i~0#1;init_nondet_~i~0#1 := 0; 2350#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 2351#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2352#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 2353#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2380#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 2379#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2377#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 2375#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2373#L17-3 assume !!(init_nondet_~i~0#1 < 5);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 2365#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2364#L17-3 assume !(init_nondet_~i~0#1 < 5); 2338#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 2339#L28-3 assume !!(rangesum_~i~1#1 < 5); 2340#L29 assume !(rangesum_~i~1#1 > 2); 2341#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2345#L28-3 assume !!(rangesum_~i~1#1 < 5); 2342#L29 assume !(rangesum_~i~1#1 > 2); 2343#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2346#L28-3 assume !!(rangesum_~i~1#1 < 5); 2385#L29 assume !(rangesum_~i~1#1 > 2); 2383#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2384#L28-3 assume !!(rangesum_~i~1#1 < 5); 2382#L29 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 2381#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2358#L28-3 assume !!(rangesum_~i~1#1 < 5); 2359#L29 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 2369#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2367#L28-3 assume !(rangesum_~i~1#1 < 5); 2362#L28-4 assume 0 != rangesum_~cnt~0#1;rangesum_#res#1 := (if (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 <= 2147483647 then (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 else (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 - 4294967296); 2356#L37 main_#t~ret5#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 2334#L28-8 assume !!(rangesum_~i~1#1 < 5); 2335#L29-2 assume !(rangesum_~i~1#1 > 2); 2347#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2348#L28-8 assume !!(rangesum_~i~1#1 < 5); 2363#L29-2 assume !(rangesum_~i~1#1 > 2); 2349#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2336#L28-8 assume !!(rangesum_~i~1#1 < 5); 2337#L29-2 assume !(rangesum_~i~1#1 > 2); 2378#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2376#L28-8 assume !!(rangesum_~i~1#1 < 5); 2374#L29-2 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 2372#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2371#L28-8 assume !!(rangesum_~i~1#1 < 5); 2370#L29-2 assume rangesum_~i~1#1 > 2;call rangesum_#t~mem4#1 := read~int(rangesum_~x#1.base, rangesum_~x#1.offset + 4 * rangesum_~i~1#1, 4);rangesum_~ret~0#1 := rangesum_~ret~0#1 + rangesum_#t~mem4#1;havoc rangesum_#t~mem4#1;rangesum_~cnt~0#1 := 1 + rangesum_~cnt~0#1; 2368#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2366#L28-8 assume !(rangesum_~i~1#1 < 5); 2360#L28-9 assume 0 != rangesum_~cnt~0#1;rangesum_#res#1 := (if (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 <= 2147483647 then (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 else (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 - 4294967296); 2354#L37-1 main_#t~ret8#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret2~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;main_~i~2#1 := 0; 2355#L54-3 [2021-11-19 05:37:51,001 INFO L793 eck$LassoCheckResult]: Loop: 2355#L54-3 assume !!(main_~i~2#1 < 4);call main_#t~mem11#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~2#1), 4);call write~int(main_#t~mem11#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~2#1, 4);havoc main_#t~mem11#1; 2357#L54-2 main_#t~post10#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 2355#L54-3 [2021-11-19 05:37:51,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:51,002 INFO L85 PathProgramCache]: Analyzing trace with hash -46487371, now seen corresponding path program 1 times [2021-11-19 05:37:51,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:51,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243064767] [2021-11-19 05:37:51,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:51,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:51,014 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-19 05:37:51,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037476043] [2021-11-19 05:37:51,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:51,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:37:51,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:51,016 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:37:51,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-19 05:37:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:51,101 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:51,158 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:51,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:51,159 INFO L85 PathProgramCache]: Analyzing trace with hash 3331, now seen corresponding path program 1 times [2021-11-19 05:37:51,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:51,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051904336] [2021-11-19 05:37:51,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:51,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:51,163 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:51,166 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:37:51,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:37:51,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1724688201, now seen corresponding path program 1 times [2021-11-19 05:37:51,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:37:51,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437016946] [2021-11-19 05:37:51,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:51,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:37:51,176 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-19 05:37:51,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1543329379] [2021-11-19 05:37:51,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:37:51,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:37:51,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:37:51,180 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:37:51,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-19 05:37:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:51,263 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:37:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:37:51,333 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:38:12,272 WARN L227 SmtUtils]: Spent 20.86s on a formula simplification. DAG size of input: 371 DAG size of output: 274 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-19 05:38:41,516 WARN L227 SmtUtils]: Spent 11.34s on a formula simplification that was a NOOP. DAG size: 193 (called from [L 268] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-19 05:38:41,520 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 05:38:41,520 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 05:38:41,520 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 05:38:41,520 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 05:38:41,520 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 05:38:41,520 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:38:41,520 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 05:38:41,520 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 05:38:41,520 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration12_Lasso [2021-11-19 05:38:41,520 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 05:38:41,520 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 05:38:41,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:38:41,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:38:41,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:38:41,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:38:41,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 05:38:42,296 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: MapEliminator tries to combine Int and (Array Int Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceSelectStoreTerm(MapEliminator.java:592) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceStoreTerms(MapEliminator.java:542) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:330) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 05:38:42,300 INFO L158 Benchmark]: Toolchain (without parser) took 62912.58ms. Allocated memory was 98.6MB in the beginning and 151.0MB in the end (delta: 52.4MB). Free memory was 68.6MB in the beginning and 43.4MB in the end (delta: 25.2MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. [2021-11-19 05:38:42,301 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:38:42,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.02ms. Allocated memory is still 98.6MB. Free memory was 68.4MB in the beginning and 73.4MB in the end (delta: -5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 05:38:42,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.97ms. Allocated memory is still 98.6MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:38:42,302 INFO L158 Benchmark]: Boogie Preprocessor took 36.43ms. Allocated memory is still 98.6MB. Free memory was 71.3MB in the beginning and 70.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:38:42,303 INFO L158 Benchmark]: RCFGBuilder took 582.22ms. Allocated memory is still 98.6MB. Free memory was 69.6MB in the beginning and 57.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 05:38:42,303 INFO L158 Benchmark]: BuchiAutomizer took 61884.68ms. Allocated memory was 98.6MB in the beginning and 151.0MB in the end (delta: 52.4MB). Free memory was 57.1MB in the beginning and 43.4MB in the end (delta: 13.6MB). Peak memory consumption was 81.3MB. Max. memory is 16.1GB. [2021-11-19 05:38:42,306 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.02ms. Allocated memory is still 98.6MB. Free memory was 68.4MB in the beginning and 73.4MB in the end (delta: -5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.97ms. Allocated memory is still 98.6MB. Free memory was 73.4MB in the beginning and 71.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.43ms. Allocated memory is still 98.6MB. Free memory was 71.3MB in the beginning and 70.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 582.22ms. Allocated memory is still 98.6MB. Free memory was 69.6MB in the beginning and 57.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 61884.68ms. Allocated memory was 98.6MB in the beginning and 151.0MB in the end (delta: 52.4MB). Free memory was 57.1MB in the beginning and 43.4MB in the end (delta: 13.6MB). Peak memory consumption was 81.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: MapEliminator tries to combine Int and (Array Int Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-19 05:38:42,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-11-19 05:38:42,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-11-19 05:38:42,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-11-19 05:38:42,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-11-19 05:38:43,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2021-11-19 05:38:43,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-11-19 05:38:43,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-19 05:38:43,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-19 05:38:43,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-19 05:38:44,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_372ff0c9-23a0-4c45-a4e3-c4b5838e30bf/bin/uautomizer-ZXIjhQolGL/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int)