./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ --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 4dc91bf2fc8981aab63c1ee768384f1c8f580edfe4618d65089a78f799b6ddb8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:26:43,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:26:43,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:26:43,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:26:43,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:26:43,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:26:43,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:26:43,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:26:43,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:26:43,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:26:43,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:26:43,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:26:43,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:26:43,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:26:43,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:26:43,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:26:43,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:26:43,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:26:43,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:26:43,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:26:43,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:26:43,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:26:43,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:26:43,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:26:43,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:26:43,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:26:43,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:26:43,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:26:43,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:26:43,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:26:43,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:26:43,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:26:43,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:26:43,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:26:43,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:26:43,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:26:43,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:26:43,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:26:43,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:26:43,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:26:43,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:26:43,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-10-17 10:26:43,940 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:26:43,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:26:43,941 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:26:43,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:26:43,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:26:43,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:26:43,943 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:26:43,943 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:26:43,943 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:26:43,944 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:26:43,944 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:26:43,944 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:26:43,945 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:26:43,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:26:43,945 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:26:43,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:26:43,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:26:43,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:26:43,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:26:43,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:26:43,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:26:43,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:26:43,947 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:26:43,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:26:43,948 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:26:43,948 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:26:43,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:26:43,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:26:43,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:26:43,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:26:43,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:26:43,951 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:26:43,951 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_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc91bf2fc8981aab63c1ee768384f1c8f580edfe4618d65089a78f799b6ddb8 [2022-10-17 10:26:44,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:26:44,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:26:44,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:26:44,307 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:26:44,308 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:26:44,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/reducercommutativity/rangesum.i [2022-10-17 10:26:44,436 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/data/b9cfb250b/9065483a75a84dc58fdca04b5e6dc8f1/FLAG336332df5 [2022-10-17 10:26:45,005 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:26:45,006 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/sv-benchmarks/c/reducercommutativity/rangesum.i [2022-10-17 10:26:45,014 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/data/b9cfb250b/9065483a75a84dc58fdca04b5e6dc8f1/FLAG336332df5 [2022-10-17 10:26:45,322 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/data/b9cfb250b/9065483a75a84dc58fdca04b5e6dc8f1 [2022-10-17 10:26:45,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:26:45,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:26:45,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:26:45,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:26:45,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:26:45,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:26:45" (1/1) ... [2022-10-17 10:26:45,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425f78ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45, skipping insertion in model container [2022-10-17 10:26:45,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:26:45" (1/1) ... [2022-10-17 10:26:45,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:26:45,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:26:45,622 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_1e670d07-7ff2-4668-b231-16868ac922f4/sv-benchmarks/c/reducercommutativity/rangesum.i[1544,1557] [2022-10-17 10:26:45,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:26:45,633 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:26:45,666 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_1e670d07-7ff2-4668-b231-16868ac922f4/sv-benchmarks/c/reducercommutativity/rangesum.i[1544,1557] [2022-10-17 10:26:45,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:26:45,700 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:26:45,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45 WrapperNode [2022-10-17 10:26:45,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:26:45,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:26:45,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:26:45,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:26:45,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45" (1/1) ... [2022-10-17 10:26:45,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45" (1/1) ... [2022-10-17 10:26:45,761 INFO L138 Inliner]: procedures = 17, calls = 22, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 137 [2022-10-17 10:26:45,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:26:45,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:26:45,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:26:45,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:26:45,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45" (1/1) ... [2022-10-17 10:26:45,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45" (1/1) ... [2022-10-17 10:26:45,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45" (1/1) ... [2022-10-17 10:26:45,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45" (1/1) ... [2022-10-17 10:26:45,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45" (1/1) ... [2022-10-17 10:26:45,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45" (1/1) ... [2022-10-17 10:26:45,797 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45" (1/1) ... [2022-10-17 10:26:45,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45" (1/1) ... [2022-10-17 10:26:45,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:26:45,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:26:45,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:26:45,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:26:45,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45" (1/1) ... [2022-10-17 10:26:45,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:45,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:45,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:45,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:26:45,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:26:45,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:26:45,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:26:45,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:26:45,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:26:45,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:26:45,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:26:45,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:26:45,983 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:26:45,985 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:26:46,316 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:26:46,323 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:26:46,332 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-17 10:26:46,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:26:46 BoogieIcfgContainer [2022-10-17 10:26:46,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:26:46,337 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:26:46,337 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:26:46,358 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:26:46,359 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:26:46,359 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:26:45" (1/3) ... [2022-10-17 10:26:46,360 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@628eebb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:26:46, skipping insertion in model container [2022-10-17 10:26:46,361 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:26:46,361 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:45" (2/3) ... [2022-10-17 10:26:46,362 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@628eebb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:26:46, skipping insertion in model container [2022-10-17 10:26:46,362 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:26:46,362 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:26:46" (3/3) ... [2022-10-17 10:26:46,364 INFO L332 chiAutomizerObserver]: Analyzing ICFG rangesum.i [2022-10-17 10:26:46,485 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:26:46,485 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:26:46,485 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:26:46,485 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:26:46,486 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:26:46,486 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:26:46,486 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:26:46,487 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:26:46,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 30 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 29 states have internal predecessors, (47), 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) [2022-10-17 10:26:46,529 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2022-10-17 10:26:46,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:46,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:46,548 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:26:46,548 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:26:46,548 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:26:46,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 30 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 29 states have internal predecessors, (47), 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) [2022-10-17 10:26:46,557 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2022-10-17 10:26:46,558 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:46,558 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:46,559 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:26:46,559 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:26:46,570 INFO L748 eck$LassoCheckResult]: Stem: 17#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(11, 2);~N~0 := 0; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 8#L44true assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 13#L18-3true [2022-10-17 10:26:46,570 INFO L750 eck$LassoCheckResult]: Loop: 13#L18-3true assume !!(init_nondet_~i~0#1 < ~N~0);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; 12#L18-2true 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; 13#L18-3true [2022-10-17 10:26:46,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:46,587 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-10-17 10:26:46,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:46,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471837397] [2022-10-17 10:26:46,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:46,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:46,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:46,838 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:46,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:46,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1379, now seen corresponding path program 1 times [2022-10-17 10:26:46,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:46,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808668728] [2022-10-17 10:26:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:46,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:46,867 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:46,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:46,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:46,881 INFO L85 PathProgramCache]: Analyzing trace with hash 28693956, now seen corresponding path program 1 times [2022-10-17 10:26:46,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:46,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197545165] [2022-10-17 10:26:46,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:46,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:46,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:46,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:47,493 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:26:47,494 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:26:47,494 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:26:47,494 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:26:47,495 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:26:47,495 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:47,495 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:26:47,495 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:26:47,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration1_Lasso [2022-10-17 10:26:47,497 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:26:47,497 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:26:47,529 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:47,542 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:47,545 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:47,550 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:47,557 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:47,561 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:47,565 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:47,568 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:47,574 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:47,578 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:48,042 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:48,048 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:48,052 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:48,055 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:48,059 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:48,063 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:48,067 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:48,070 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:48,072 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:48,496 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:26:48,501 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:26:48,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:48,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:48,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:48,519 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 [2022-10-17 10:26:48,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:48,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:26:48,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:48,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:48,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:48,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:26:48,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:26:48,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:26:48,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:48,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:48,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:48,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:48,606 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:48,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:26:48,611 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 [2022-10-17 10:26:48,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:48,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:26:48,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:48,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:48,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:48,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:26:48,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:26:48,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:48,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:48,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:48,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:48,692 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:48,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:26:48,701 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 [2022-10-17 10:26:48,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:48,713 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:26:48,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:48,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:48,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:48,715 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:26:48,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:26:48,732 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:48,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:48,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:48,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:48,769 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:48,774 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:26:48,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:48,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:48,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:48,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:48,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:26:48,788 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:26:48,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:26:48,792 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:48,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:48,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:48,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:48,837 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:48,843 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 [2022-10-17 10:26:48,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:26:48,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:48,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:26:48,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:48,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:48,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:48,855 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:26:48,855 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:26:48,867 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:48,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:48,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:48,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:48,910 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:48,917 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 [2022-10-17 10:26:48,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:48,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:26:48,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:48,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:48,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:48,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:26:48,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:26:48,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:26:48,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:48,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:48,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:48,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:48,990 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:48,996 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 [2022-10-17 10:26:49,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:49,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:26:49,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:49,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:49,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:49,008 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:26:49,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:26:49,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:26:49,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:49,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:49,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:49,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:49,073 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:49,081 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 [2022-10-17 10:26:49,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:49,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:49,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:49,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:49,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:26:49,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:26:49,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:26:49,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:49,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:49,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:49,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:49,160 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:49,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:26:49,167 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 [2022-10-17 10:26:49,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:49,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:26:49,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:49,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:49,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:49,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:26:49,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:26:49,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:49,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:49,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:49,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:49,208 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:49,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:26:49,214 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 [2022-10-17 10:26:49,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:49,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:26:49,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:49,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:49,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:49,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:26:49,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:26:49,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:49,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:49,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:49,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:49,285 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:49,293 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 [2022-10-17 10:26:49,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:49,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:26:49,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:49,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:49,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:49,311 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:26:49,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:26:49,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:26:49,328 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:49,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:49,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:49,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:49,365 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:49,369 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 [2022-10-17 10:26:49,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:26:49,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:49,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:49,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:49,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:49,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:26:49,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:26:49,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:49,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:49,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:49,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:49,451 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:49,457 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 [2022-10-17 10:26:49,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:49,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:49,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:49,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:49,471 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:26:49,472 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:26:49,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:26:49,500 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:49,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:49,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:49,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:49,545 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:49,553 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 [2022-10-17 10:26:49,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:49,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:49,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:49,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:49,567 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:26:49,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:26:49,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:26:49,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:49,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:49,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:49,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:49,621 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:49,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:26:49,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:26:49,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:49,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:49,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:49,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:49,638 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:26:49,638 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:26:49,653 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:49,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:49,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:49,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:49,697 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:49,705 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 [2022-10-17 10:26:49,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:49,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:49,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:49,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:49,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:26:49,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:26:49,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 10:26:49,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:49,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:49,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:49,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:49,772 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:49,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 10:26:49,777 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 [2022-10-17 10:26:49,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:49,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:49,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:49,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:49,789 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:26:49,789 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:26:49,809 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:49,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:49,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:49,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:49,833 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:49,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-10-17 10:26:49,836 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 [2022-10-17 10:26:49,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:49,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:49,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:49,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:49,848 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:26:49,866 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:26:49,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:49,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:49,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:49,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:49,932 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:49,947 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 [2022-10-17 10:26:49,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:49,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:49,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:49,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:49,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-10-17 10:26:49,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:26:49,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:26:49,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:50,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:50,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:50,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:50,025 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:50,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-10-17 10:26:50,030 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 [2022-10-17 10:26:50,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:50,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:50,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:50,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:50,043 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:26:50,043 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:26:50,049 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:50,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:50,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:50,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:50,076 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:50,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-10-17 10:26:50,080 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 [2022-10-17 10:26:50,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:50,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:50,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:50,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:50,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:26:50,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:26:50,128 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:26:50,226 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2022-10-17 10:26:50,227 INFO L444 ModelExtractionUtils]: 7 out of 25 variables were initially zero. Simplification set additionally 13 variables to zero. [2022-10-17 10:26:50,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:50,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:50,231 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:50,232 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:26:50,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-10-17 10:26:50,265 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-10-17 10:26:50,265 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:26:50,266 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_init_nondet_~x#1.base)_1, ULTIMATE.start_init_nondet_~i~0#1) = 1*v_rep(select #length ULTIMATE.start_init_nondet_~x#1.base)_1 - 2*ULTIMATE.start_init_nondet_~i~0#1 Supporting invariants [-2*~N~0 + 1*v_rep(select #length ULTIMATE.start_main_~#x~0#1.base)_1 >= 0] [2022-10-17 10:26:50,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:50,355 INFO L156 tatePredicateManager]: 8 out of 10 supporting invariants were superfluous and have been removed [2022-10-17 10:26:50,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:50,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 10:26:50,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:26:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:50,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:26:50,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:26:50,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:50,579 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:26:50,582 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 30 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 29 states have internal predecessors, (47), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-17 10:26:50,795 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 30 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 29 states have internal predecessors, (47), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 82 states and 126 transitions. Complement of second has 8 states. [2022-10-17 10:26:50,798 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 [2022-10-17 10:26:50,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-17 10:26:50,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 85 transitions. [2022-10-17 10:26:50,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 3 letters. Loop has 2 letters. [2022-10-17 10:26:50,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:26:50,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 5 letters. Loop has 2 letters. [2022-10-17 10:26:50,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:26:50,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 3 letters. Loop has 4 letters. [2022-10-17 10:26:50,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:26:50,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 126 transitions. [2022-10-17 10:26:50,839 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-10-17 10:26:50,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 23 states and 33 transitions. [2022-10-17 10:26:50,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-10-17 10:26:50,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-10-17 10:26:50,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 33 transitions. [2022-10-17 10:26:50,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:26:50,846 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 33 transitions. [2022-10-17 10:26:50,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 33 transitions. [2022-10-17 10:26:50,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-10-17 10:26:50,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.434782608695652) internal successors, (33), 22 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:26:50,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 33 transitions. [2022-10-17 10:26:50,870 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 33 transitions. [2022-10-17 10:26:50,870 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 33 transitions. [2022-10-17 10:26:50,870 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:26:50,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 33 transitions. [2022-10-17 10:26:50,871 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-10-17 10:26:50,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:50,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:50,872 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-10-17 10:26:50,872 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:26:50,872 INFO L748 eck$LassoCheckResult]: Stem: 205#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(11, 2);~N~0 := 0; 206#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 214#L44 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 215#L18-3 assume !(init_nondet_~i~0#1 < ~N~0); 199#L16 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; 200#L29-3 [2022-10-17 10:26:50,873 INFO L750 eck$LassoCheckResult]: Loop: 200#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 207#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 208#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 200#L29-3 [2022-10-17 10:26:50,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:50,873 INFO L85 PathProgramCache]: Analyzing trace with hash 28693898, now seen corresponding path program 1 times [2022-10-17 10:26:50,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:50,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300051489] [2022-10-17 10:26:50,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:50,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:50,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:50,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:26:50,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300051489] [2022-10-17 10:26:50,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300051489] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:26:50,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:26:50,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:26:50,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897466339] [2022-10-17 10:26:50,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:26:50,968 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:26:50,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:50,968 INFO L85 PathProgramCache]: Analyzing trace with hash 56764, now seen corresponding path program 1 times [2022-10-17 10:26:50,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:50,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078141481] [2022-10-17 10:26:50,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:50,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:50,978 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:50,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:51,023 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:26:51,023 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:26:51,023 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:26:51,023 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:26:51,024 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:26:51,024 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:51,024 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:26:51,024 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:26:51,024 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration2_Loop [2022-10-17 10:26:51,024 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:26:51,024 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:26:51,025 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:51,027 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:51,090 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:26:51,093 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:26:51,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:51,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:51,096 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:51,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-10-17 10:26:51,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:26:51,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:26:51,109 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:26:51,110 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_rangesum_#t~post3#1=0} Honda state: {ULTIMATE.start_rangesum_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:26:51,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:51,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:51,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:51,134 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:51,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-10-17 10:26:51,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:26:51,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:26:51,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:51,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:51,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:51,178 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:51,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-10-17 10:26:51,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:26:51,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:26:51,404 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:26:51,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:51,411 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:26:51,411 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:26:51,411 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:26:51,412 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:26:51,412 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:26:51,412 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:51,412 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:26:51,412 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:26:51,412 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration2_Loop [2022-10-17 10:26:51,412 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:26:51,412 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:26:51,413 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:51,416 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:26:51,482 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:26:51,482 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:26:51,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:51,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:51,483 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:51,535 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 [2022-10-17 10:26:51,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:51,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:26:51,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:51,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:51,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:51,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:26:51,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:26:51,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-10-17 10:26:51,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:26:51,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:51,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:51,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:51,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:51,616 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:51,630 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 [2022-10-17 10:26:51,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:26:51,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:26:51,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:26:51,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:26:51,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:26:51,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-10-17 10:26:51,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:26:51,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:26:51,660 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:26:51,667 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:26:51,667 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 10:26:51,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:51,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:51,668 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:51,672 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:26:51,672 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:26:51,672 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:26:51,672 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_rangesum_~i~1#1, ~N~0) = -4*ULTIMATE.start_rangesum_~i~1#1 + 3*~N~0 Supporting invariants [] [2022-10-17 10:26:51,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-10-17 10:26:51,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:51,714 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:26:51,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:51,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:26:51,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:26:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:51,773 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:26:51,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:26:51,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:51,862 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-10-17 10:26:51,863 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 33 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:26:51,914 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 33 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 53 transitions. Complement of second has 9 states. [2022-10-17 10:26:51,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-10-17 10:26:51,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:26:51,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2022-10-17 10:26:51,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 3 letters. [2022-10-17 10:26:51,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:26:51,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 3 letters. [2022-10-17 10:26:51,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:26:51,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 6 letters. [2022-10-17 10:26:51,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:26:51,920 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 53 transitions. [2022-10-17 10:26:51,921 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-10-17 10:26:51,924 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 31 states and 46 transitions. [2022-10-17 10:26:51,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-10-17 10:26:51,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2022-10-17 10:26:51,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 46 transitions. [2022-10-17 10:26:51,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:26:51,925 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 46 transitions. [2022-10-17 10:26:51,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 46 transitions. [2022-10-17 10:26:51,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-10-17 10:26:51,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 28 states have internal predecessors, (43), 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) [2022-10-17 10:26:51,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2022-10-17 10:26:51,931 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 43 transitions. [2022-10-17 10:26:51,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:26:51,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:26:51,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:26:51,939 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-17 10:26:52,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:26:52,005 INFO L93 Difference]: Finished difference Result 30 states and 43 transitions. [2022-10-17 10:26:52,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 43 transitions. [2022-10-17 10:26:52,007 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-10-17 10:26:52,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 43 transitions. [2022-10-17 10:26:52,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-10-17 10:26:52,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2022-10-17 10:26:52,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 43 transitions. [2022-10-17 10:26:52,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:26:52,009 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 43 transitions. [2022-10-17 10:26:52,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 43 transitions. [2022-10-17 10:26:52,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-10-17 10:26:52,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 28 states have internal predecessors, (42), 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) [2022-10-17 10:26:52,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 42 transitions. [2022-10-17 10:26:52,013 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 42 transitions. [2022-10-17 10:26:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:26:52,014 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2022-10-17 10:26:52,014 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:26:52,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 42 transitions. [2022-10-17 10:26:52,016 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-10-17 10:26:52,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:52,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:52,017 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:26:52,017 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:26:52,017 INFO L748 eck$LassoCheckResult]: Stem: 369#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(11, 2);~N~0 := 0; 370#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 383#L44 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 384#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 391#L18-2 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; 392#L18-3 assume !(init_nondet_~i~0#1 < ~N~0); 365#L16 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; 366#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 371#L30 [2022-10-17 10:26:52,017 INFO L750 eck$LassoCheckResult]: Loop: 371#L30 assume rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 372#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 389#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 371#L30 [2022-10-17 10:26:52,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:52,018 INFO L85 PathProgramCache]: Analyzing trace with hash 123162479, now seen corresponding path program 1 times [2022-10-17 10:26:52,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:52,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420196216] [2022-10-17 10:26:52,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:52,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:52,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:26:52,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420196216] [2022-10-17 10:26:52,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420196216] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:26:52,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779687032] [2022-10-17 10:26:52,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:52,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:26:52,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:52,123 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:26:52,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-10-17 10:26:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:26:52,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:26:52,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:52,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:26:52,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:52,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779687032] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:26:52,290 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:26:52,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-17 10:26:52,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357320272] [2022-10-17 10:26:52,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:26:52,291 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:26:52,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:52,292 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 1 times [2022-10-17 10:26:52,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:52,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972110954] [2022-10-17 10:26:52,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:52,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:52,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:52,320 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:52,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:26:52,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:26:52,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:26:52,439 INFO L87 Difference]: Start difference. First operand 29 states and 42 transitions. cyclomatic complexity: 19 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2022-10-17 10:26:52,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:26:52,522 INFO L93 Difference]: Finished difference Result 32 states and 45 transitions. [2022-10-17 10:26:52,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 45 transitions. [2022-10-17 10:26:52,523 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-10-17 10:26:52,524 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 32 states and 45 transitions. [2022-10-17 10:26:52,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-10-17 10:26:52,525 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2022-10-17 10:26:52,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 45 transitions. [2022-10-17 10:26:52,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:26:52,525 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 45 transitions. [2022-10-17 10:26:52,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 45 transitions. [2022-10-17 10:26:52,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2022-10-17 10:26:52,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 30 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) [2022-10-17 10:26:52,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2022-10-17 10:26:52,529 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 44 transitions. [2022-10-17 10:26:52,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:26:52,530 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 44 transitions. [2022-10-17 10:26:52,531 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:26:52,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 44 transitions. [2022-10-17 10:26:52,531 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-10-17 10:26:52,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:52,532 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:52,532 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-10-17 10:26:52,532 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:26:52,533 INFO L748 eck$LassoCheckResult]: Stem: 491#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(11, 2);~N~0 := 0; 492#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 496#L44 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 497#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 504#L18-2 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; 505#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 506#L18-2 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; 508#L18-3 assume !(init_nondet_~i~0#1 < ~N~0); 478#L16 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; 479#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 482#L30 [2022-10-17 10:26:52,533 INFO L750 eck$LassoCheckResult]: Loop: 482#L30 assume rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 483#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 502#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 482#L30 [2022-10-17 10:26:52,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:52,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1898228851, now seen corresponding path program 2 times [2022-10-17 10:26:52,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:52,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354361567] [2022-10-17 10:26:52,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:52,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:52,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:52,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:52,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:52,574 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 2 times [2022-10-17 10:26:52,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:52,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559515039] [2022-10-17 10:26:52,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:52,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:52,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:52,593 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:52,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:52,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1698716202, now seen corresponding path program 1 times [2022-10-17 10:26:52,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:52,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544843503] [2022-10-17 10:26:52,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:52,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:52,808 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 10:26:52,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:26:52,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544843503] [2022-10-17 10:26:52,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544843503] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:26:52,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:26:52,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:26:52,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194057594] [2022-10-17 10:26:52,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:26:52,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:26:52,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:26:52,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:26:52,922 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. cyclomatic complexity: 19 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-10-17 10:26:53,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:26:53,003 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2022-10-17 10:26:53,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 51 transitions. [2022-10-17 10:26:53,004 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-10-17 10:26:53,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 39 states and 50 transitions. [2022-10-17 10:26:53,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-10-17 10:26:53,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-10-17 10:26:53,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 50 transitions. [2022-10-17 10:26:53,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:26:53,005 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 50 transitions. [2022-10-17 10:26:53,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 50 transitions. [2022-10-17 10:26:53,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2022-10-17 10:26:53,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 35 states have internal predecessors, (47), 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) [2022-10-17 10:26:53,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2022-10-17 10:26:53,011 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 47 transitions. [2022-10-17 10:26:53,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:26:53,015 INFO L428 stractBuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2022-10-17 10:26:53,015 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 10:26:53,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 47 transitions. [2022-10-17 10:26:53,018 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-10-17 10:26:53,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:53,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:53,019 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:26:53,019 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:26:53,019 INFO L748 eck$LassoCheckResult]: Stem: 562#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(11, 2);~N~0 := 0; 563#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 575#L44 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 576#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 583#L18-2 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; 584#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 585#L18-2 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; 590#L18-3 assume !(init_nondet_~i~0#1 < ~N~0); 558#L16 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; 559#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 566#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 567#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 591#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 564#L30 [2022-10-17 10:26:53,019 INFO L750 eck$LassoCheckResult]: Loop: 564#L30 assume rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 565#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 588#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 564#L30 [2022-10-17 10:26:53,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:53,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1698718124, now seen corresponding path program 1 times [2022-10-17 10:26:53,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:53,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351325258] [2022-10-17 10:26:53,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:53,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:53,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:53,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:53,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:53,115 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 3 times [2022-10-17 10:26:53,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:53,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379817552] [2022-10-17 10:26:53,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:53,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:53,127 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:53,134 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:53,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:53,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1087986773, now seen corresponding path program 1 times [2022-10-17 10:26:53,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:53,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883295964] [2022-10-17 10:26:53,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:53,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:53,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-10-17 10:26:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:53,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:26:53,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883295964] [2022-10-17 10:26:53,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883295964] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:26:53,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604426711] [2022-10-17 10:26:53,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:53,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:26:53,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:53,573 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:26:53,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-10-17 10:26:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:53,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:26:53,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:26:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:53,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:26:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:53,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604426711] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:26:53,909 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:26:53,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-10-17 10:26:53,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91813579] [2022-10-17 10:26:53,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:26:53,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:26:54,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-17 10:26:54,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-10-17 10:26:54,001 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. cyclomatic complexity: 17 Second operand has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 states have internal predecessors, (38), 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) [2022-10-17 10:26:54,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:26:54,580 INFO L93 Difference]: Finished difference Result 75 states and 94 transitions. [2022-10-17 10:26:54,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 94 transitions. [2022-10-17 10:26:54,582 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2022-10-17 10:26:54,583 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 65 states and 83 transitions. [2022-10-17 10:26:54,583 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2022-10-17 10:26:54,583 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2022-10-17 10:26:54,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 83 transitions. [2022-10-17 10:26:54,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:26:54,584 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 83 transitions. [2022-10-17 10:26:54,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 83 transitions. [2022-10-17 10:26:54,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 59. [2022-10-17 10:26:54,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.271186440677966) internal successors, (75), 58 states have internal predecessors, (75), 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) [2022-10-17 10:26:54,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-10-17 10:26:54,593 INFO L240 hiAutomatonCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-10-17 10:26:54,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 10:26:54,595 INFO L428 stractBuchiCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-10-17 10:26:54,595 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 10:26:54,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 75 transitions. [2022-10-17 10:26:54,597 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2022-10-17 10:26:54,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:54,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:54,599 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:26:54,599 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:26:54,600 INFO L748 eck$LassoCheckResult]: Stem: 804#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(11, 2);~N~0 := 0; 805#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 813#L44 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 814#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 825#L18-2 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; 854#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 853#L18-2 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; 852#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 823#L18-2 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; 824#L18-3 assume !(init_nondet_~i~0#1 < ~N~0); 796#L16 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; 797#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 808#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 809#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 841#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 842#L30 [2022-10-17 10:26:54,600 INFO L750 eck$LassoCheckResult]: Loop: 842#L30 assume rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 844#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 843#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 842#L30 [2022-10-17 10:26:54,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:54,600 INFO L85 PathProgramCache]: Analyzing trace with hash -154124210, now seen corresponding path program 2 times [2022-10-17 10:26:54,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:54,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459197613] [2022-10-17 10:26:54,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:54,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:54,631 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:54,665 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:54,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:54,666 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 4 times [2022-10-17 10:26:54,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:54,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032924553] [2022-10-17 10:26:54,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:54,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:54,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:54,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:54,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:54,691 INFO L85 PathProgramCache]: Analyzing trace with hash -194270775, now seen corresponding path program 2 times [2022-10-17 10:26:54,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:54,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805486745] [2022-10-17 10:26:54,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:54,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:54,953 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:54,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:26:54,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805486745] [2022-10-17 10:26:54,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805486745] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:26:54,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459155224] [2022-10-17 10:26:54,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:26:54,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:26:54,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:54,956 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:26:54,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-17 10:26:55,032 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:26:55,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:26:55,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:26:55,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:26:55,179 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:55,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:26:55,518 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:55,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459155224] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:26:55,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:26:55,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2022-10-17 10:26:55,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613239116] [2022-10-17 10:26:55,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:26:55,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:26:55,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-17 10:26:55,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-10-17 10:26:55,626 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. cyclomatic complexity: 23 Second operand has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 19 states have internal predecessors, (42), 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) [2022-10-17 10:26:56,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:26:56,076 INFO L93 Difference]: Finished difference Result 74 states and 88 transitions. [2022-10-17 10:26:56,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 88 transitions. [2022-10-17 10:26:56,077 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-10-17 10:26:56,078 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 73 states and 87 transitions. [2022-10-17 10:26:56,078 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-10-17 10:26:56,079 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-10-17 10:26:56,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 87 transitions. [2022-10-17 10:26:56,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:26:56,080 INFO L218 hiAutomatonCegarLoop]: Abstraction has 73 states and 87 transitions. [2022-10-17 10:26:56,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 87 transitions. [2022-10-17 10:26:56,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2022-10-17 10:26:56,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.2058823529411764) internal successors, (82), 67 states have internal predecessors, (82), 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) [2022-10-17 10:26:56,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2022-10-17 10:26:56,087 INFO L240 hiAutomatonCegarLoop]: Abstraction has 68 states and 82 transitions. [2022-10-17 10:26:56,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:26:56,088 INFO L428 stractBuchiCegarLoop]: Abstraction has 68 states and 82 transitions. [2022-10-17 10:26:56,089 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-10-17 10:26:56,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 82 transitions. [2022-10-17 10:26:56,090 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2022-10-17 10:26:56,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:56,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:56,091 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-17 10:26:56,091 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:26:56,091 INFO L748 eck$LassoCheckResult]: Stem: 1081#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(11, 2);~N~0 := 0; 1082#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1087#L44 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 1088#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 1097#L18-2 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; 1098#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 1099#L18-2 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; 1133#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 1132#L18-2 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; 1131#L18-3 assume !(init_nondet_~i~0#1 < ~N~0); 1129#L16 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; 1094#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 1075#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1076#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1127#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 1124#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1115#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1110#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 1111#L30 [2022-10-17 10:26:56,092 INFO L750 eck$LassoCheckResult]: Loop: 1111#L30 assume rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 1126#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1123#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 1111#L30 [2022-10-17 10:26:56,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:56,092 INFO L85 PathProgramCache]: Analyzing trace with hash -194268853, now seen corresponding path program 3 times [2022-10-17 10:26:56,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:56,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080114716] [2022-10-17 10:26:56,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:56,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:56,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:56,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:56,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:56,138 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 5 times [2022-10-17 10:26:56,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:56,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544104072] [2022-10-17 10:26:56,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:56,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:56,144 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:56,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:56,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:56,150 INFO L85 PathProgramCache]: Analyzing trace with hash -2142422100, now seen corresponding path program 3 times [2022-10-17 10:26:56,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:56,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298378945] [2022-10-17 10:26:56,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:56,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:56,314 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:26:56,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:26:56,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298378945] [2022-10-17 10:26:56,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298378945] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:26:56,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613369204] [2022-10-17 10:26:56,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 10:26:56,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:26:56,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:56,320 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:26:56,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-10-17 10:26:56,408 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-17 10:26:56,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:26:56,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 10:26:56,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:26:56,534 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:56,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:26:56,636 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:56,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613369204] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:26:56,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:26:56,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 16 [2022-10-17 10:26:56,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101262363] [2022-10-17 10:26:56,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:26:56,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:26:56,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-17 10:26:56,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:26:56,726 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. cyclomatic complexity: 21 Second operand has 17 states, 16 states have (on average 2.625) internal successors, (42), 17 states have internal predecessors, (42), 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) [2022-10-17 10:26:57,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:26:57,187 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2022-10-17 10:26:57,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 141 transitions. [2022-10-17 10:26:57,189 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 17 [2022-10-17 10:26:57,190 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 104 states and 125 transitions. [2022-10-17 10:26:57,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2022-10-17 10:26:57,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2022-10-17 10:26:57,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 125 transitions. [2022-10-17 10:26:57,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:26:57,192 INFO L218 hiAutomatonCegarLoop]: Abstraction has 104 states and 125 transitions. [2022-10-17 10:26:57,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 125 transitions. [2022-10-17 10:26:57,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 91. [2022-10-17 10:26:57,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.1978021978021978) internal successors, (109), 90 states have internal predecessors, (109), 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) [2022-10-17 10:26:57,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 109 transitions. [2022-10-17 10:26:57,199 INFO L240 hiAutomatonCegarLoop]: Abstraction has 91 states and 109 transitions. [2022-10-17 10:26:57,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-17 10:26:57,201 INFO L428 stractBuchiCegarLoop]: Abstraction has 91 states and 109 transitions. [2022-10-17 10:26:57,201 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-10-17 10:26:57,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 109 transitions. [2022-10-17 10:26:57,202 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2022-10-17 10:26:57,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:57,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:57,203 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-17 10:26:57,203 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:26:57,203 INFO L748 eck$LassoCheckResult]: Stem: 1432#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(11, 2);~N~0 := 0; 1433#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1438#L44 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 1439#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 1447#L18-2 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; 1448#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 1449#L18-2 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; 1486#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 1485#L18-2 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; 1484#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 1480#L18-2 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; 1479#L18-3 assume !(init_nondet_~i~0#1 < ~N~0); 1478#L16 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; 1477#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 1426#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1427#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1445#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 1446#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1475#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1471#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 1472#L30 [2022-10-17 10:26:57,204 INFO L750 eck$LassoCheckResult]: Loop: 1472#L30 assume rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 1476#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1474#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 1472#L30 [2022-10-17 10:26:57,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:57,204 INFO L85 PathProgramCache]: Analyzing trace with hash -326653975, now seen corresponding path program 4 times [2022-10-17 10:26:57,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:57,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294853396] [2022-10-17 10:26:57,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:57,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:57,222 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:57,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:57,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:57,241 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 6 times [2022-10-17 10:26:57,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:57,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004053416] [2022-10-17 10:26:57,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:57,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:57,246 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:57,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:57,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:57,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1047353422, now seen corresponding path program 4 times [2022-10-17 10:26:57,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:57,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443808984] [2022-10-17 10:26:57,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:57,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:26:57,504 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-17 10:26:57,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:26:57,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443808984] [2022-10-17 10:26:57,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443808984] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:26:57,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336171551] [2022-10-17 10:26:57,505 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-17 10:26:57,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:26:57,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:57,507 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:26:57,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-10-17 10:26:57,585 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-17 10:26:57,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:26:57,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 10:26:57,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:26:57,781 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:57,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:26:58,203 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:26:58,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336171551] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:26:58,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:26:58,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 25 [2022-10-17 10:26:58,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989346238] [2022-10-17 10:26:58,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:26:58,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:26:58,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-17 10:26:58,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2022-10-17 10:26:58,305 INFO L87 Difference]: Start difference. First operand 91 states and 109 transitions. cyclomatic complexity: 25 Second operand has 25 states, 25 states have (on average 2.28) internal successors, (57), 25 states have internal predecessors, (57), 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) [2022-10-17 10:26:59,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:26:59,822 INFO L93 Difference]: Finished difference Result 166 states and 193 transitions. [2022-10-17 10:26:59,822 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 193 transitions. [2022-10-17 10:26:59,824 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 25 [2022-10-17 10:26:59,826 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 160 states and 187 transitions. [2022-10-17 10:26:59,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2022-10-17 10:26:59,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2022-10-17 10:26:59,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 187 transitions. [2022-10-17 10:26:59,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:26:59,829 INFO L218 hiAutomatonCegarLoop]: Abstraction has 160 states and 187 transitions. [2022-10-17 10:26:59,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 187 transitions. [2022-10-17 10:26:59,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 139. [2022-10-17 10:26:59,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 139 states have (on average 1.1870503597122302) internal successors, (165), 138 states have internal predecessors, (165), 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) [2022-10-17 10:26:59,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 165 transitions. [2022-10-17 10:26:59,847 INFO L240 hiAutomatonCegarLoop]: Abstraction has 139 states and 165 transitions. [2022-10-17 10:26:59,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-17 10:26:59,852 INFO L428 stractBuchiCegarLoop]: Abstraction has 139 states and 165 transitions. [2022-10-17 10:26:59,852 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-10-17 10:26:59,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states and 165 transitions. [2022-10-17 10:26:59,854 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 21 [2022-10-17 10:26:59,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:59,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:59,856 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 4, 3, 3, 1, 1, 1, 1, 1] [2022-10-17 10:26:59,856 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:26:59,856 INFO L748 eck$LassoCheckResult]: Stem: 1905#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(11, 2);~N~0 := 0; 1906#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1910#L44 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 1911#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 1921#L18-2 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; 1985#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 1984#L18-2 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; 1982#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 1983#L18-2 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; 1996#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 1919#L18-2 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; 1920#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 1924#L18-2 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; 1922#L18-3 assume !(init_nondet_~i~0#1 < ~N~0); 1923#L16 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; 1915#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 1916#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1999#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2000#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 1899#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1900#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2006#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 1951#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1952#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1944#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 1945#L30 [2022-10-17 10:26:59,856 INFO L750 eck$LassoCheckResult]: Loop: 1945#L30 assume rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 1930#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1931#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 1945#L30 [2022-10-17 10:26:59,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:59,860 INFO L85 PathProgramCache]: Analyzing trace with hash -185017358, now seen corresponding path program 5 times [2022-10-17 10:26:59,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:59,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267340929] [2022-10-17 10:26:59,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:59,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:59,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:59,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:59,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:59,934 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 7 times [2022-10-17 10:26:59,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:59,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180465464] [2022-10-17 10:26:59,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:59,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:59,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:59,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:26:59,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:59,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1409041499, now seen corresponding path program 5 times [2022-10-17 10:26:59,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:59,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111287300] [2022-10-17 10:26:59,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:59,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:26:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:59,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:26:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:26:59,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:01,917 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:27:01,918 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:27:01,918 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:27:01,918 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:27:01,918 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:27:01,918 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:01,918 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:27:01,918 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:27:01,918 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration9_Lasso [2022-10-17 10:27:01,918 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:27:01,919 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:27:01,923 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,928 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,931 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,934 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,937 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,941 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,944 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,946 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,949 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,952 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,955 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,960 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,963 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:02,863 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:02,866 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:02,871 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:02,873 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:02,877 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:02,880 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:02,883 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:02,885 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:02,888 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:02,891 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:02,893 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:03,532 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:27:03,532 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:27:03,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,545 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-10-17 10:27:03,547 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 [2022-10-17 10:27:03,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,587 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,588 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 [2022-10-17 10:27:03,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-10-17 10:27:03,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-10-17 10:27:03,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,634 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-10-17 10:27:03,639 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 [2022-10-17 10:27:03,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,652 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2022-10-17 10:27:03,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,678 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-10-17 10:27:03,681 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 [2022-10-17 10:27:03,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:03,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:03,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-10-17 10:27:03,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,728 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,737 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 [2022-10-17 10:27:03,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-10-17 10:27:03,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,748 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-10-17 10:27:03,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,773 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-10-17 10:27:03,775 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 [2022-10-17 10:27:03,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,786 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,811 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-10-17 10:27:03,817 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 [2022-10-17 10:27:03,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,827 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,889 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-10-17 10:27:03,893 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 [2022-10-17 10:27:03,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-10-17 10:27:03,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,937 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-10-17 10:27:03,938 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 [2022-10-17 10:27:03,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-10-17 10:27:03,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,988 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-10-17 10:27:03,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:04,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:04,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:04,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:04,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,032 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-10-17 10:27:04,033 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 [2022-10-17 10:27:04,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:04,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:04,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-10-17 10:27:04,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,094 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-10-17 10:27:04,099 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 [2022-10-17 10:27:04,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:04,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:04,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:04,110 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2022-10-17 10:27:04,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,135 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-10-17 10:27:04,137 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 [2022-10-17 10:27:04,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:04,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:04,177 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2022-10-17 10:27:04,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,219 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,225 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 [2022-10-17 10:27:04,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:04,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:04,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-10-17 10:27:04,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,295 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,297 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 [2022-10-17 10:27:04,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,312 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:04,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:04,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-10-17 10:27:04,340 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2022-10-17 10:27:04,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,379 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,385 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 [2022-10-17 10:27:04,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:04,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:04,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-10-17 10:27:04,411 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,453 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,455 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 [2022-10-17 10:27:04,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,472 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:04,473 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:04,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-10-17 10:27:04,492 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,536 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,538 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 [2022-10-17 10:27:04,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,551 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:04,552 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:04,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-10-17 10:27:04,573 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,616 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,618 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 [2022-10-17 10:27:04,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,632 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:04,632 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:04,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-10-17 10:27:04,635 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,662 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-10-17 10:27:04,663 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 [2022-10-17 10:27:04,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:04,674 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:04,677 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,709 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-10-17 10:27:04,716 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 [2022-10-17 10:27:04,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:04,728 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:04,748 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,793 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,801 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 [2022-10-17 10:27:04,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,815 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:04,815 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:04,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-10-17 10:27:04,828 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,871 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,873 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 [2022-10-17 10:27:04,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:04,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:04,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-10-17 10:27:04,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:04,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:04,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:04,943 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:04,945 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 [2022-10-17 10:27:04,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:04,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:04,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:04,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:04,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-10-17 10:27:04,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:04,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:04,997 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:27:05,043 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-10-17 10:27:05,044 INFO L444 ModelExtractionUtils]: 12 out of 37 variables were initially zero. Simplification set additionally 22 variables to zero. [2022-10-17 10:27:05,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:05,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:05,048 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:05,050 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:27:05,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-10-17 10:27:05,082 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-10-17 10:27:05,082 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:27:05,082 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~N~0, ULTIMATE.start_rangesum_~i~1#1) = 1*~N~0 - 1*ULTIMATE.start_rangesum_~i~1#1 Supporting invariants [] [2022-10-17 10:27:05,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:05,273 INFO L156 tatePredicateManager]: 28 out of 28 supporting invariants were superfluous and have been removed [2022-10-17 10:27:05,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:05,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:27:05,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:05,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:27:05,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:05,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:27:05,382 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:27:05,383 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 139 states and 165 transitions. cyclomatic complexity: 37 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:27:05,417 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 139 states and 165 transitions. cyclomatic complexity: 37. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 178 states and 215 transitions. Complement of second has 7 states. [2022-10-17 10:27:05,417 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 [2022-10-17 10:27:05,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:27:05,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-10-17 10:27:05,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 25 letters. Loop has 3 letters. [2022-10-17 10:27:05,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:05,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 28 letters. Loop has 3 letters. [2022-10-17 10:27:05,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:05,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 25 letters. Loop has 6 letters. [2022-10-17 10:27:05,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:05,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 215 transitions. [2022-10-17 10:27:05,422 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 18 [2022-10-17 10:27:05,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 148 states and 176 transitions. [2022-10-17 10:27:05,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2022-10-17 10:27:05,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 114 [2022-10-17 10:27:05,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 176 transitions. [2022-10-17 10:27:05,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:05,425 INFO L218 hiAutomatonCegarLoop]: Abstraction has 148 states and 176 transitions. [2022-10-17 10:27:05,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 176 transitions. [2022-10-17 10:27:05,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 142. [2022-10-17 10:27:05,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 142 states have (on average 1.1971830985915493) internal successors, (170), 141 states have internal predecessors, (170), 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) [2022-10-17 10:27:05,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 170 transitions. [2022-10-17 10:27:05,445 INFO L240 hiAutomatonCegarLoop]: Abstraction has 142 states and 170 transitions. [2022-10-17 10:27:05,447 INFO L428 stractBuchiCegarLoop]: Abstraction has 142 states and 170 transitions. [2022-10-17 10:27:05,448 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-10-17 10:27:05,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 170 transitions. [2022-10-17 10:27:05,449 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 18 [2022-10-17 10:27:05,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:05,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:05,451 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:27:05,451 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:27:05,452 INFO L748 eck$LassoCheckResult]: Stem: 2442#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(11, 2);~N~0 := 0; 2443#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 2447#L44 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 2448#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 2457#L18-2 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; 2502#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 2501#L18-2 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; 2499#L18-3 assume !(init_nondet_~i~0#1 < ~N~0); 2498#L16 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; 2497#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 2496#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2495#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2494#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 2493#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2492#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2490#L29-3 assume !(rangesum_~i~1#1 < ~N~0); 2488#L29-4 assume !(0 != rangesum_~cnt~0#1);rangesum_#res#1 := 0; 2486#L38 main_#t~ret6#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#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; 2484#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 2482#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2480#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2478#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 2476#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2475#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2470#L29-8 assume !(rangesum_~i~1#1 < ~N~0); 2469#L29-9 assume !(0 != rangesum_~cnt~0#1);rangesum_#res#1 := 0; 2438#L38-1 main_#t~ret9#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret2~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem10#1;havoc main_#t~mem10#1;main_~i~2#1 := 0; 2439#L57-3 [2022-10-17 10:27:05,459 INFO L750 eck$LassoCheckResult]: Loop: 2439#L57-3 assume !!(main_~i~2#1 < ~N~0 - 1);call main_#t~mem12#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~mem12#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~2#1, 4);havoc main_#t~mem12#1; 2450#L57-2 main_#t~post11#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post11#1;havoc main_#t~post11#1; 2439#L57-3 [2022-10-17 10:27:05,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:05,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1751120697, now seen corresponding path program 1 times [2022-10-17 10:27:05,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:05,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858044807] [2022-10-17 10:27:05,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:05,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:05,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:05,532 INFO L85 PathProgramCache]: Analyzing trace with hash 3427, now seen corresponding path program 1 times [2022-10-17 10:27:05,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:05,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264904130] [2022-10-17 10:27:05,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:05,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:05,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:05,543 INFO L85 PathProgramCache]: Analyzing trace with hash 800192681, now seen corresponding path program 1 times [2022-10-17 10:27:05,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:05,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899276286] [2022-10-17 10:27:05,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:05,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,640 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:05,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:06,973 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:27:06,973 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:27:06,973 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:27:06,973 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:27:06,973 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:27:06,973 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:06,973 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:27:06,973 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:27:06,973 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration10_Lasso [2022-10-17 10:27:06,973 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:27:06,974 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:27:06,978 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:06,982 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:06,984 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:06,987 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:06,990 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,867 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,869 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,872 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,874 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,877 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,883 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,887 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,890 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,892 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,895 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,897 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,900 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,903 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,906 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,909 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,911 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,913 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,916 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:07,918 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:08,440 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:27:08,441 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:27:08,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:08,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:08,445 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:08,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-10-17 10:27:08,446 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 [2022-10-17 10:27:08,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:08,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:08,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:08,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:08,457 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:08,457 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:08,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:08,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:08,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:08,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:08,486 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:08,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-10-17 10:27:08,488 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 [2022-10-17 10:27:08,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:08,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:08,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:08,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:08,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:08,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:08,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:08,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:08,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2022-10-17 10:27:08,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:08,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:08,538 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:08,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-10-17 10:27:08,539 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 [2022-10-17 10:27:08,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:08,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:08,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:08,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:08,549 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:08,549 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:08,552 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:08,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2022-10-17 10:27:08,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:08,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:08,578 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:08,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-10-17 10:27:08,580 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 [2022-10-17 10:27:08,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:08,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:08,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:08,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:08,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:08,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:08,616 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:08,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:08,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:08,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:08,661 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:08,663 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 [2022-10-17 10:27:08,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2022-10-17 10:27:08,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:08,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:08,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:08,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:08,675 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:08,676 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:08,682 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:08,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:08,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:08,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:08,707 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:08,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2022-10-17 10:27:08,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:08,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:08,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:08,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:08,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:08,719 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:08,719 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:08,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:08,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:08,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:08,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:08,748 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:08,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2022-10-17 10:27:08,750 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 [2022-10-17 10:27:08,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:08,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:08,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:08,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:08,761 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:08,761 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:08,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:08,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:08,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:08,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:08,790 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:08,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2022-10-17 10:27:08,794 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 [2022-10-17 10:27:08,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:08,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:08,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:08,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:08,805 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:08,805 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:08,809 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:08,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2022-10-17 10:27:08,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:08,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:08,834 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:08,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2022-10-17 10:27:08,835 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 [2022-10-17 10:27:08,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:08,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:08,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:08,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:08,845 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:08,846 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:08,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:08,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2022-10-17 10:27:08,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:08,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:08,874 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:08,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2022-10-17 10:27:08,876 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 [2022-10-17 10:27:08,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:08,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:08,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:08,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:08,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:08,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:08,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:08,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:08,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:08,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:08,916 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:08,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2022-10-17 10:27:08,917 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 [2022-10-17 10:27:08,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:08,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:08,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:08,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:08,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:08,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:08,952 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:27:09,009 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2022-10-17 10:27:09,009 INFO L444 ModelExtractionUtils]: 5 out of 31 variables were initially zero. Simplification set additionally 23 variables to zero. [2022-10-17 10:27:09,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:09,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:09,013 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:09,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2022-10-17 10:27:09,014 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:27:09,025 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-10-17 10:27:09,026 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:27:09,026 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_init_nondet_~x#1.base)_3, ULTIMATE.start_main_~i~2#1) = 1*v_rep(select #length ULTIMATE.start_init_nondet_~x#1.base)_3 - 4*ULTIMATE.start_main_~i~2#1 Supporting invariants [] [2022-10-17 10:27:09,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:09,170 INFO L156 tatePredicateManager]: 19 out of 21 supporting invariants were superfluous and have been removed [2022-10-17 10:27:09,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:09,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:27:09,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:09,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2022-10-17 10:27:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:09,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:27:09,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:09,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:27:09,464 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-10-17 10:27:09,465 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 170 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-10-17 10:27:09,533 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 170 transitions. cyclomatic complexity: 39. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 164 states and 202 transitions. Complement of second has 7 states. [2022-10-17 10:27:09,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-10-17 10:27:09,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-10-17 10:27:09,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2022-10-17 10:27:09,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 27 letters. Loop has 2 letters. [2022-10-17 10:27:09,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:09,536 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 29 letters. Loop has 2 letters. [2022-10-17 10:27:09,536 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:09,536 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 27 letters. Loop has 4 letters. [2022-10-17 10:27:09,536 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:09,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 202 transitions. [2022-10-17 10:27:09,539 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-10-17 10:27:09,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 102 states and 125 transitions. [2022-10-17 10:27:09,541 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2022-10-17 10:27:09,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2022-10-17 10:27:09,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 125 transitions. [2022-10-17 10:27:09,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:09,541 INFO L218 hiAutomatonCegarLoop]: Abstraction has 102 states and 125 transitions. [2022-10-17 10:27:09,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 125 transitions. [2022-10-17 10:27:09,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-10-17 10:27:09,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 102 states have (on average 1.2254901960784315) internal successors, (125), 101 states have internal predecessors, (125), 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) [2022-10-17 10:27:09,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 125 transitions. [2022-10-17 10:27:09,546 INFO L240 hiAutomatonCegarLoop]: Abstraction has 102 states and 125 transitions. [2022-10-17 10:27:09,546 INFO L428 stractBuchiCegarLoop]: Abstraction has 102 states and 125 transitions. [2022-10-17 10:27:09,546 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-10-17 10:27:09,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 125 transitions. [2022-10-17 10:27:09,547 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-10-17 10:27:09,547 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:09,547 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:09,548 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:27:09,549 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:27:09,549 INFO L748 eck$LassoCheckResult]: Stem: 2947#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(11, 2);~N~0 := 0; 2948#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 2952#L44 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 2953#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 2964#L18-2 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; 2965#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 2966#L18-2 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; 3001#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 2962#L18-2 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; 2963#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 3000#L18-2 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; 2999#L18-3 assume !(init_nondet_~i~0#1 < ~N~0); 2935#L16 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; 2936#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 2941#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2942#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2960#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 2961#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2989#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2986#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 2973#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2940#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2972#L29-3 assume !(rangesum_~i~1#1 < ~N~0); 2949#L29-4 assume !(0 != rangesum_~cnt~0#1);rangesum_#res#1 := 0; 2950#L38 main_#t~ret6#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#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; 2957#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 2937#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2938#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3019#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 3017#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 3015#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3013#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 3007#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 3003#L29-7 [2022-10-17 10:27:09,549 INFO L750 eck$LassoCheckResult]: Loop: 3003#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3004#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 3008#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 3003#L29-7 [2022-10-17 10:27:09,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:09,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1627383893, now seen corresponding path program 1 times [2022-10-17 10:27:09,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:09,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507627504] [2022-10-17 10:27:09,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:09,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:09,782 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-17 10:27:09,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:27:09,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507627504] [2022-10-17 10:27:09,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507627504] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:27:09,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215728104] [2022-10-17 10:27:09,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:09,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:27:09,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:09,784 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:27:09,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2022-10-17 10:27:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:09,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 10:27:09,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:10,061 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 19 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-17 10:27:10,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:27:10,221 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 19 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-17 10:27:10,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215728104] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:27:10,222 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:27:10,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 20 [2022-10-17 10:27:10,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485564882] [2022-10-17 10:27:10,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:27:10,223 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:27:10,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:10,223 INFO L85 PathProgramCache]: Analyzing trace with hash 88159, now seen corresponding path program 1 times [2022-10-17 10:27:10,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:10,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134861228] [2022-10-17 10:27:10,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:10,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:10,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:10,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:10,275 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:27:10,275 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:27:10,275 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:27:10,275 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:27:10,275 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:27:10,276 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:10,276 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:27:10,276 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:27:10,276 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration11_Loop [2022-10-17 10:27:10,276 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:27:10,276 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:27:10,277 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:10,280 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:10,333 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:27:10,333 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:27:10,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:10,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:10,335 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:10,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2022-10-17 10:27:10,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:27:10,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:27:10,346 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:27:10,346 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_rangesum_#t~post3#1=0} Honda state: {ULTIMATE.start_rangesum_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:27:10,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2022-10-17 10:27:10,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:10,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:10,371 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:10,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2022-10-17 10:27:10,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:27:10,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:27:10,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2022-10-17 10:27:10,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:10,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:10,407 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:10,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2022-10-17 10:27:10,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:27:10,409 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:27:11,058 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:27:11,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:11,061 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:27:11,062 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:27:11,062 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:27:11,062 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:27:11,062 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:27:11,062 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:11,062 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:27:11,062 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:27:11,062 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration11_Loop [2022-10-17 10:27:11,062 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:27:11,062 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:27:11,063 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:11,077 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:11,135 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:27:11,135 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:27:11,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:11,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:11,137 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:11,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2022-10-17 10:27:11,138 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 [2022-10-17 10:27:11,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:11,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:11,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:11,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:11,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:11,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:11,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:11,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:11,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:11,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:11,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:11,191 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:11,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2022-10-17 10:27:11,192 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 [2022-10-17 10:27:11,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:11,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:11,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:11,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:11,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:11,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:11,203 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:11,205 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:27:11,208 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:27:11,208 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 10:27:11,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:11,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:11,209 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:11,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2022-10-17 10:27:11,211 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:27:11,211 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:27:11,211 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:27:11,211 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~N~0, ULTIMATE.start_rangesum_~i~1#1) = 1*~N~0 - 2*ULTIMATE.start_rangesum_~i~1#1 Supporting invariants [] [2022-10-17 10:27:11,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2022-10-17 10:27:11,234 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:27:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:11,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:27:11,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:11,363 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:27:11,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:11,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:27:11,394 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-10-17 10:27:11,395 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 102 states and 125 transitions. cyclomatic complexity: 33 Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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) [2022-10-17 10:27:11,454 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 102 states and 125 transitions. cyclomatic complexity: 33. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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 131 states and 163 transitions. Complement of second has 7 states. [2022-10-17 10:27:11,454 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 [2022-10-17 10:27:11,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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) [2022-10-17 10:27:11,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2022-10-17 10:27:11,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 33 letters. Loop has 3 letters. [2022-10-17 10:27:11,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:11,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 36 letters. Loop has 3 letters. [2022-10-17 10:27:11,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:11,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 33 letters. Loop has 6 letters. [2022-10-17 10:27:11,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:11,457 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 131 states and 163 transitions. [2022-10-17 10:27:11,459 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-10-17 10:27:11,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 131 states to 109 states and 134 transitions. [2022-10-17 10:27:11,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2022-10-17 10:27:11,460 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2022-10-17 10:27:11,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 134 transitions. [2022-10-17 10:27:11,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:11,461 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 134 transitions. [2022-10-17 10:27:11,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 134 transitions. [2022-10-17 10:27:11,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2022-10-17 10:27:11,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 106 states have (on average 1.2264150943396226) internal successors, (130), 105 states have internal predecessors, (130), 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) [2022-10-17 10:27:11,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 130 transitions. [2022-10-17 10:27:11,465 INFO L240 hiAutomatonCegarLoop]: Abstraction has 106 states and 130 transitions. [2022-10-17 10:27:11,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:27:11,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-17 10:27:11,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-10-17 10:27:11,467 INFO L87 Difference]: Start difference. First operand 106 states and 130 transitions. Second operand has 20 states, 20 states have (on average 2.6) internal successors, (52), 20 states have internal predecessors, (52), 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) [2022-10-17 10:27:11,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:12,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:27:12,254 INFO L93 Difference]: Finished difference Result 169 states and 201 transitions. [2022-10-17 10:27:12,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 201 transitions. [2022-10-17 10:27:12,256 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2022-10-17 10:27:12,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 159 states and 189 transitions. [2022-10-17 10:27:12,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 83 [2022-10-17 10:27:12,258 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 83 [2022-10-17 10:27:12,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 189 transitions. [2022-10-17 10:27:12,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:12,259 INFO L218 hiAutomatonCegarLoop]: Abstraction has 159 states and 189 transitions. [2022-10-17 10:27:12,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 189 transitions. [2022-10-17 10:27:12,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 107. [2022-10-17 10:27:12,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 106 states have internal predecessors, (127), 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) [2022-10-17 10:27:12,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 127 transitions. [2022-10-17 10:27:12,264 INFO L240 hiAutomatonCegarLoop]: Abstraction has 107 states and 127 transitions. [2022-10-17 10:27:12,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:27:12,265 INFO L428 stractBuchiCegarLoop]: Abstraction has 107 states and 127 transitions. [2022-10-17 10:27:12,265 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-10-17 10:27:12,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 127 transitions. [2022-10-17 10:27:12,267 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-10-17 10:27:12,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:12,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:12,268 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:27:12,269 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:27:12,269 INFO L748 eck$LassoCheckResult]: Stem: 3815#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(11, 2);~N~0 := 0; 3816#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3828#L44 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 3829#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 3845#L18-2 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; 3846#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 3843#L18-2 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; 3844#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 3863#L18-2 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; 3862#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 3860#L18-2 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; 3861#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 3859#L18-2 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; 3857#L18-3 assume !(init_nondet_~i~0#1 < ~N~0); 3858#L16 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; 3840#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 3819#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 3820#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3841#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 3842#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 3883#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3884#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 3881#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 3879#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3867#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 3868#L30 assume rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 3853#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3854#L29-3 assume !(rangesum_~i~1#1 < ~N~0); 3825#L29-4 assume !(0 != rangesum_~cnt~0#1);rangesum_#res#1 := 0; 3826#L38 main_#t~ret6#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#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; 3875#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 3876#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 3850#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3851#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 3902#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 3901#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3900#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 3896#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 3894#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3837#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 3838#L30-2 [2022-10-17 10:27:12,269 INFO L750 eck$LassoCheckResult]: Loop: 3838#L30-2 assume rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 3865#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3866#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 3838#L30-2 [2022-10-17 10:27:12,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:12,270 INFO L85 PathProgramCache]: Analyzing trace with hash -477007165, now seen corresponding path program 1 times [2022-10-17 10:27:12,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:12,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009996162] [2022-10-17 10:27:12,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:12,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:12,350 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-17 10:27:12,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:27:12,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009996162] [2022-10-17 10:27:12,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009996162] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:27:12,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627541430] [2022-10-17 10:27:12,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:12,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:27:12,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:12,357 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:27:12,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2022-10-17 10:27:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:12,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:27:12,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:12,486 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-17 10:27:12,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:27:12,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627541430] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:27:12,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:27:12,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-10-17 10:27:12,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762702161] [2022-10-17 10:27:12,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:27:12,488 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:27:12,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:12,488 INFO L85 PathProgramCache]: Analyzing trace with hash 84527, now seen corresponding path program 1 times [2022-10-17 10:27:12,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:12,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662508068] [2022-10-17 10:27:12,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:12,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:12,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:12,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:12,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:27:12,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:27:12,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:27:12,593 INFO L87 Difference]: Start difference. First operand 107 states and 127 transitions. cyclomatic complexity: 31 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:27:12,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:27:12,630 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2022-10-17 10:27:12,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 141 transitions. [2022-10-17 10:27:12,634 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-10-17 10:27:12,635 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 119 states and 141 transitions. [2022-10-17 10:27:12,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2022-10-17 10:27:12,636 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2022-10-17 10:27:12,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 141 transitions. [2022-10-17 10:27:12,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:12,636 INFO L218 hiAutomatonCegarLoop]: Abstraction has 119 states and 141 transitions. [2022-10-17 10:27:12,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 141 transitions. [2022-10-17 10:27:12,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 107. [2022-10-17 10:27:12,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 107 states have (on average 1.1495327102803738) internal successors, (123), 106 states have internal predecessors, (123), 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) [2022-10-17 10:27:12,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 123 transitions. [2022-10-17 10:27:12,640 INFO L240 hiAutomatonCegarLoop]: Abstraction has 107 states and 123 transitions. [2022-10-17 10:27:12,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:27:12,642 INFO L428 stractBuchiCegarLoop]: Abstraction has 107 states and 123 transitions. [2022-10-17 10:27:12,642 INFO L335 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2022-10-17 10:27:12,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 123 transitions. [2022-10-17 10:27:12,643 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-10-17 10:27:12,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:12,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:12,650 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:27:12,650 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:27:12,651 INFO L748 eck$LassoCheckResult]: Stem: 4174#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(11, 2);~N~0 := 0; 4175#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 4179#L44 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 4180#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 4193#L18-2 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; 4222#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 4221#L18-2 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; 4220#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 4219#L18-2 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; 4218#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 4217#L18-2 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; 4216#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 4191#L18-2 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; 4192#L18-3 assume !(init_nondet_~i~0#1 < ~N~0); 4160#L16 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; 4161#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 4188#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 4232#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4229#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 4168#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 4169#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4189#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 4190#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 4225#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4223#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 4204#L30 assume rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 4202#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4245#L29-3 assume !(rangesum_~i~1#1 < ~N~0); 4244#L29-4 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); 4243#L38 main_#t~ret6#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#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; 4242#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 4241#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 4196#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4197#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 4248#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 4249#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4250#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 4164#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 4165#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4184#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 4185#L30-2 [2022-10-17 10:27:12,651 INFO L750 eck$LassoCheckResult]: Loop: 4185#L30-2 assume rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 4227#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4228#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 4185#L30-2 [2022-10-17 10:27:12,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:12,652 INFO L85 PathProgramCache]: Analyzing trace with hash -735172603, now seen corresponding path program 1 times [2022-10-17 10:27:12,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:12,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742701104] [2022-10-17 10:27:12,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:12,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:12,680 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 10:27:12,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858959836] [2022-10-17 10:27:12,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:12,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:27:12,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:12,685 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:27:12,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2022-10-17 10:27:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:12,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-17 10:27:12,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:12,939 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 10:27:12,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:27:13,091 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 10:27:13,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:27:13,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742701104] [2022-10-17 10:27:13,091 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 10:27:13,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858959836] [2022-10-17 10:27:13,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858959836] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:27:13,092 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-17 10:27:13,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2022-10-17 10:27:13,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137219463] [2022-10-17 10:27:13,092 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-17 10:27:13,092 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:27:13,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:13,093 INFO L85 PathProgramCache]: Analyzing trace with hash 84527, now seen corresponding path program 2 times [2022-10-17 10:27:13,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:13,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342132574] [2022-10-17 10:27:13,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:13,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:13,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:13,100 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:13,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:27:13,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-17 10:27:13,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2022-10-17 10:27:13,202 INFO L87 Difference]: Start difference. First operand 107 states and 123 transitions. cyclomatic complexity: 27 Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 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) [2022-10-17 10:27:13,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:27:13,837 INFO L93 Difference]: Finished difference Result 182 states and 216 transitions. [2022-10-17 10:27:13,837 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 216 transitions. [2022-10-17 10:27:13,839 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2022-10-17 10:27:13,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 177 states and 210 transitions. [2022-10-17 10:27:13,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2022-10-17 10:27:13,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2022-10-17 10:27:13,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 210 transitions. [2022-10-17 10:27:13,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:13,841 INFO L218 hiAutomatonCegarLoop]: Abstraction has 177 states and 210 transitions. [2022-10-17 10:27:13,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 210 transitions. [2022-10-17 10:27:13,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 110. [2022-10-17 10:27:13,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 110 states have (on average 1.1363636363636365) internal successors, (125), 109 states have internal predecessors, (125), 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) [2022-10-17 10:27:13,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 125 transitions. [2022-10-17 10:27:13,844 INFO L240 hiAutomatonCegarLoop]: Abstraction has 110 states and 125 transitions. [2022-10-17 10:27:13,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-17 10:27:13,849 INFO L428 stractBuchiCegarLoop]: Abstraction has 110 states and 125 transitions. [2022-10-17 10:27:13,850 INFO L335 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2022-10-17 10:27:13,850 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 125 transitions. [2022-10-17 10:27:13,851 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-10-17 10:27:13,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:13,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:13,852 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:27:13,852 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:27:13,853 INFO L748 eck$LassoCheckResult]: Stem: 4744#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(11, 2);~N~0 := 0; 4745#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~2#1, main_#t~ret13#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;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 4750#L44 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 4751#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 4768#L18-2 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; 4769#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 4766#L18-2 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; 4767#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 4787#L18-2 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; 4786#L18-3 assume !!(init_nondet_~i~0#1 < ~N~0);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; 4783#L18-2 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; 4784#L18-3 assume !(init_nondet_~i~0#1 < ~N~0); 4730#L16 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; 4731#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 4801#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 4800#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4799#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 4798#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 4797#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4796#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 4794#L30 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 4795#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4793#L29-3 assume !!(rangesum_~i~1#1 < ~N~0); 4792#L30 assume rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 4775#L29-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4776#L29-3 assume !(rangesum_~i~1#1 < ~N~0); 4746#L29-4 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); 4747#L38 main_#t~ret6#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#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; 4818#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 4817#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 4816#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4815#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 4814#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 4813#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4811#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 4812#L30-2 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 4810#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4809#L29-8 assume !!(rangesum_~i~1#1 < ~N~0); 4808#L30-2 assume rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 4807#L29-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4785#L29-8 assume !(rangesum_~i~1#1 < ~N~0); 4770#L29-9 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); 4740#L38-1 main_#t~ret9#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret2~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem10#1;havoc main_#t~mem10#1;main_~i~2#1 := 0; 4741#L57-3 assume !(main_~i~2#1 < ~N~0 - 1); 4742#L57-4 call write~int(main_~temp~0#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (~N~0 - 1), 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; 4743#L29-13 [2022-10-17 10:27:13,854 INFO L750 eck$LassoCheckResult]: Loop: 4743#L29-13 assume !!(rangesum_~i~1#1 < ~N~0); 4830#L30-4 assume !(rangesum_~i~1#1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 4831#L29-12 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4743#L29-13 [2022-10-17 10:27:13,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:13,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1784789267, now seen corresponding path program 1 times [2022-10-17 10:27:13,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:13,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030019377] [2022-10-17 10:27:13,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:13,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:13,871 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 10:27:13,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1665384904] [2022-10-17 10:27:13,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:13,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:27:13,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:13,874 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:27:13,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e670d07-7ff2-4668-b231-16868ac922f4/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2022-10-17 10:27:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:13,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:27:13,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:14,081 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-17 10:27:14,081 INFO L328 TraceCheckSpWp]: Computing backward predicates...