./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc --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 43671c88cb28f81a53d6c7fbea907e55b0f99c68f8a522c4103c0a12ddf9f652 --- 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-5e519f3 [2022-11-02 20:16:31,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:16:31,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:16:31,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:16:31,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:16:32,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:16:32,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:16:32,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:16:32,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:16:32,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:16:32,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:16:32,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:16:32,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:16:32,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:16:32,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:16:32,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:16:32,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:16:32,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:16:32,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:16:32,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:16:32,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:16:32,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:16:32,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:16:32,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:16:32,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:16:32,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:16:32,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:16:32,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:16:32,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:16:32,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:16:32,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:16:32,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:16:32,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:16:32,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:16:32,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:16:32,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:16:32,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:16:32,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:16:32,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:16:32,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:16:32,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:16:32,067 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-02 20:16:32,107 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:16:32,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:16:32,108 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:16:32,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:16:32,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:16:32,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:16:32,110 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:16:32,111 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:16:32,111 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:16:32,111 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:16:32,112 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:16:32,112 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:16:32,113 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:16:32,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:16:32,113 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:16:32,113 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:16:32,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:16:32,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:16:32,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:16:32,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:16:32,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:16:32,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:16:32,115 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:16:32,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:16:32,115 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:16:32,115 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:16:32,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:16:32,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:16:32,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:16:32,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:16:32,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:16:32,119 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:16:32,119 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_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43671c88cb28f81a53d6c7fbea907e55b0f99c68f8a522c4103c0a12ddf9f652 [2022-11-02 20:16:32,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:16:32,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:16:32,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:16:32,461 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:16:32,462 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:16:32,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/reducercommutativity/rangesum10.i [2022-11-02 20:16:32,550 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/data/b4da54994/a908caa525214a8d9f182d678d8ec85f/FLAG21591da71 [2022-11-02 20:16:33,142 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:16:33,143 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/sv-benchmarks/c/reducercommutativity/rangesum10.i [2022-11-02 20:16:33,151 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/data/b4da54994/a908caa525214a8d9f182d678d8ec85f/FLAG21591da71 [2022-11-02 20:16:33,495 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/data/b4da54994/a908caa525214a8d9f182d678d8ec85f [2022-11-02 20:16:33,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:16:33,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:16:33,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:16:33,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:16:33,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:16:33,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac5180e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33, skipping insertion in model container [2022-11-02 20:16:33,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:16:33,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:16:33,755 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_24bb089a-10d1-4cd4-9c4c-53182623891f/sv-benchmarks/c/reducercommutativity/rangesum10.i[1465,1478] [2022-11-02 20:16:33,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:16:33,767 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:16:33,790 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_24bb089a-10d1-4cd4-9c4c-53182623891f/sv-benchmarks/c/reducercommutativity/rangesum10.i[1465,1478] [2022-11-02 20:16:33,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:16:33,806 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:16:33,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33 WrapperNode [2022-11-02 20:16:33,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:16:33,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:16:33,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:16:33,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:16:33,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,848 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 135 [2022-11-02 20:16:33,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:16:33,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:16:33,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:16:33,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:16:33,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:16:33,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:16:33,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:16:33,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:16:33,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33" (1/1) ... [2022-11-02 20:16:33,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:33,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:33,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:33,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:16:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:16:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:16:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:16:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:16:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:16:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:16:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:16:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:16:34,039 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:16:34,041 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:16:34,312 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:16:34,318 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:16:34,318 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-02 20:16:34,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:34 BoogieIcfgContainer [2022-11-02 20:16:34,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:16:34,321 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:16:34,321 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:16:34,336 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:16:34,337 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:16:34,337 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:16:33" (1/3) ... [2022-11-02 20:16:34,338 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b0fbbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:16:34, skipping insertion in model container [2022-11-02 20:16:34,338 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:16:34,338 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:16:33" (2/3) ... [2022-11-02 20:16:34,338 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b0fbbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:16:34, skipping insertion in model container [2022-11-02 20:16:34,339 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:16:34,339 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:16:34" (3/3) ... [2022-11-02 20:16:34,340 INFO L332 chiAutomizerObserver]: Analyzing ICFG rangesum10.i [2022-11-02 20:16:34,438 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:16:34,439 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:16:34,439 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:16:34,439 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:16:34,439 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:16:34,439 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:16:34,439 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:16:34,440 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:16:34,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:34,463 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2022-11-02 20:16:34,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:34,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:34,469 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:16:34,469 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 20:16:34,469 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:16:34,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:34,472 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2022-11-02 20:16:34,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:34,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:34,473 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:16:34,473 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 20:16:34,481 INFO L748 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);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; 21#L17-3true [2022-11-02 20:16:34,481 INFO L750 eck$LassoCheckResult]: Loop: 21#L17-3true assume !!(init_nondet_~i~0#1 < 10);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; 10#L17-2true init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 21#L17-3true [2022-11-02 20:16:34,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:34,493 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 20:16:34,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:34,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025434192] [2022-11-02 20:16:34,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:34,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:34,638 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:34,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:34,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:34,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2022-11-02 20:16:34,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:34,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586478638] [2022-11-02 20:16:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:34,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:34,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:34,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:34,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:34,736 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-11-02 20:16:34,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:34,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322040644] [2022-11-02 20:16:34,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:34,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:34,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:34,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:35,332 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:16:35,333 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:16:35,333 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:16:35,333 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:16:35,333 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:16:35,334 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:35,334 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:16:35,334 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:16:35,334 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum10.i_Iteration1_Lasso [2022-11-02 20:16:35,334 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:16:35,335 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:16:35,356 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,371 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,374 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,380 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,385 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,725 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,730 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,732 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,736 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,740 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,745 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,749 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,751 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,755 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,758 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,762 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,766 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:35,769 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:36,126 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:16:36,131 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:16:36,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:36,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:36,141 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:36,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:16:36,147 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 [2022-11-02 20:16:36,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:36,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:16:36,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:36,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:36,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:36,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:16:36,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:16:36,174 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:36,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-11-02 20:16:36,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:36,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:36,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:36,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:16:36,221 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 [2022-11-02 20:16:36,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:36,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:16:36,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:36,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:36,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:36,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:16:36,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:16:36,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:36,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:36,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:36,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:36,301 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:36,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:16:36,309 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 [2022-11-02 20:16:36,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:36,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:16:36,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:36,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:36,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:36,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:16:36,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:16:36,336 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:36,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:36,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:36,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:36,365 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:36,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:16:36,367 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 [2022-11-02 20:16:36,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:36,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:36,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:36,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:36,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:36,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:36,393 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:36,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:36,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:36,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:36,435 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:36,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 20:16:36,441 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 [2022-11-02 20:16:36,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:36,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:16:36,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:36,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:36,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:36,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:16:36,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:16:36,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:36,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:36,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:36,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:36,512 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:36,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 20:16:36,514 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 [2022-11-02 20:16:36,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:36,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:16:36,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:36,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:36,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:36,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:16:36,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:16:36,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:36,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:36,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:36,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:36,564 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:36,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 20:16:36,567 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 [2022-11-02 20:16:36,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:36,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:36,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:36,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:36,580 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:36,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:36,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:36,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:36,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:36,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:36,636 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:36,645 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 [2022-11-02 20:16:36,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:36,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:36,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:36,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:36,662 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:36,662 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:36,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 20:16:36,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:36,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:36,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:36,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:36,718 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:36,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 20:16:36,720 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 [2022-11-02 20:16:36,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:36,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:36,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:36,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:36,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:36,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:36,758 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:16:36,789 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2022-11-02 20:16:36,789 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2022-11-02 20:16:36,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:36,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:36,799 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:36,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 20:16:36,828 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:16:36,862 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-02 20:16:36,862 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:16:36,863 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#x~0#1.base)_1, ULTIMATE.start_init_nondet_~i~0#1) = 19*v_rep(select #length ULTIMATE.start_main_~#x~0#1.base)_1 - 8*ULTIMATE.start_init_nondet_~i~0#1 Supporting invariants [] [2022-11-02 20:16:36,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:36,940 INFO L156 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2022-11-02 20:16:36,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:37,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:16:37,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:37,033 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 20:16:37,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:37,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:37,140 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 [2022-11-02 20:16:37,142 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,253 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 119 transitions. Complement of second has 8 states. [2022-11-02 20:16:37,255 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 [2022-11-02 20:16:37,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2022-11-02 20:16:37,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 79 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-02 20:16:37,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:16:37,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 79 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-02 20:16:37,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:16:37,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 79 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-02 20:16:37,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:16:37,263 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 119 transitions. [2022-11-02 20:16:37,267 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-02 20:16:37,270 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 22 states and 32 transitions. [2022-11-02 20:16:37,271 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-11-02 20:16:37,271 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-02 20:16:37,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 32 transitions. [2022-11-02 20:16:37,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:37,272 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 32 transitions. [2022-11-02 20:16:37,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 32 transitions. [2022-11-02 20:16:37,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-02 20:16:37,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 32 transitions. [2022-11-02 20:16:37,299 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 32 transitions. [2022-11-02 20:16:37,299 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 32 transitions. [2022-11-02 20:16:37,299 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:16:37,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 32 transitions. [2022-11-02 20:16:37,300 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-02 20:16:37,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:37,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:37,301 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-02 20:16:37,301 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:16:37,301 INFO L748 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 184#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);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; 195#L17-3 assume !(init_nondet_~i~0#1 < 10); 190#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 191#L28-3 [2022-11-02 20:16:37,301 INFO L750 eck$LassoCheckResult]: Loop: 191#L28-3 assume !!(rangesum_~i~1#1 < 10); 192#L29 assume rangesum_~i~1#1 > 5;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; 193#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 191#L28-3 [2022-11-02 20:16:37,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:37,302 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2022-11-02 20:16:37,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:37,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540723435] [2022-11-02 20:16:37,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:37,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:37,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:37,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:37,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540723435] [2022-11-02 20:16:37,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540723435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:37,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:37,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:16:37,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397071986] [2022-11-02 20:16:37,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:37,378 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:16:37,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:37,378 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 1 times [2022-11-02 20:16:37,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:37,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826246945] [2022-11-02 20:16:37,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:37,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:37,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:37,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:37,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:37,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:37,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:37,467 INFO L87 Difference]: Start difference. First operand 22 states and 32 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:37,480 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2022-11-02 20:16:37,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 32 transitions. [2022-11-02 20:16:37,481 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-02 20:16:37,481 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 32 transitions. [2022-11-02 20:16:37,481 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-02 20:16:37,482 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-02 20:16:37,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 32 transitions. [2022-11-02 20:16:37,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:37,496 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 32 transitions. [2022-11-02 20:16:37,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 32 transitions. [2022-11-02 20:16:37,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2022-11-02 20:16:37,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 31 transitions. [2022-11-02 20:16:37,499 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 31 transitions. [2022-11-02 20:16:37,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:37,500 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2022-11-02 20:16:37,500 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 20:16:37,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 31 transitions. [2022-11-02 20:16:37,501 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-02 20:16:37,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:37,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:37,502 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:16:37,502 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:16:37,502 INFO L748 eck$LassoCheckResult]: Stem: 234#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 235#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);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; 247#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 248#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 249#L17-3 assume !(init_nondet_~i~0#1 < 10); 241#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 242#L28-3 [2022-11-02 20:16:37,502 INFO L750 eck$LassoCheckResult]: Loop: 242#L28-3 assume !!(rangesum_~i~1#1 < 10); 243#L29 assume rangesum_~i~1#1 > 5;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; 244#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 242#L28-3 [2022-11-02 20:16:37,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:37,503 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2022-11-02 20:16:37,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:37,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675685882] [2022-11-02 20:16:37,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:37,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:37,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:37,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:37,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675685882] [2022-11-02 20:16:37,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675685882] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:16:37,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852409693] [2022-11-02 20:16:37,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:37,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:16:37,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:37,616 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:16:37,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-02 20:16:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:37,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:16:37,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:37,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:37,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:16:37,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:37,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852409693] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:16:37,744 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:16:37,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-02 20:16:37,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932730413] [2022-11-02 20:16:37,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:16:37,749 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:16:37,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:37,752 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 2 times [2022-11-02 20:16:37,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:37,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838477814] [2022-11-02 20:16:37,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:37,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:37,773 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:37,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:37,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:37,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:37,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:16:37,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:16:37,869 INFO L87 Difference]: Start difference. First operand 22 states and 31 transitions. cyclomatic complexity: 14 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:37,903 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2022-11-02 20:16:37,903 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2022-11-02 20:16:37,906 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-02 20:16:37,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 37 transitions. [2022-11-02 20:16:37,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-02 20:16:37,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-02 20:16:37,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 37 transitions. [2022-11-02 20:16:37,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:37,907 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 37 transitions. [2022-11-02 20:16:37,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 37 transitions. [2022-11-02 20:16:37,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-02 20:16:37,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 27 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:37,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2022-11-02 20:16:37,910 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 37 transitions. [2022-11-02 20:16:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:16:37,914 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2022-11-02 20:16:37,915 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-02 20:16:37,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 37 transitions. [2022-11-02 20:16:37,916 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-02 20:16:37,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:37,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:37,920 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2022-11-02 20:16:37,921 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:16:37,921 INFO L748 eck$LassoCheckResult]: Stem: 324#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 325#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);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; 336#L17-3 assume !!(init_nondet_~i~0#1 < 10);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 337#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 338#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 339#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 351#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 350#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 349#L17-3 assume !!(init_nondet_~i~0#1 < 10);call write~int(init_nondet_#t~nondet2#1, init_nondet_~x#1.base, init_nondet_~x#1.offset + 4 * init_nondet_~i~0#1, 4);havoc init_nondet_#t~nondet2#1; 348#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 347#L17-3 assume !(init_nondet_~i~0#1 < 10); 331#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 332#L28-3 [2022-11-02 20:16:37,921 INFO L750 eck$LassoCheckResult]: Loop: 332#L28-3 assume !!(rangesum_~i~1#1 < 10); 333#L29 assume rangesum_~i~1#1 > 5;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; 334#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 332#L28-3 [2022-11-02 20:16:37,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:37,922 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 2 times [2022-11-02 20:16:37,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:37,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175903179] [2022-11-02 20:16:37,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:37,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:38,094 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:38,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:38,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175903179] [2022-11-02 20:16:38,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175903179] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:16:38,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284481637] [2022-11-02 20:16:38,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:16:38,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:16:38,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:38,097 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:16:38,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-02 20:16:38,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:16:38,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:16:38,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:16:38,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:38,188 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:38,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:16:38,264 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:38,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284481637] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:16:38,266 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:16:38,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-02 20:16:38,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675741954] [2022-11-02 20:16:38,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:16:38,267 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:16:38,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:38,268 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 3 times [2022-11-02 20:16:38,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:38,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243967531] [2022-11-02 20:16:38,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:38,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:38,276 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:38,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:38,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:38,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:16:38,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:16:38,370 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. cyclomatic complexity: 14 Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:38,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:38,432 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2022-11-02 20:16:38,432 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 49 transitions. [2022-11-02 20:16:38,439 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-02 20:16:38,441 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 40 states and 49 transitions. [2022-11-02 20:16:38,441 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-02 20:16:38,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-02 20:16:38,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 49 transitions. [2022-11-02 20:16:38,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:38,442 INFO L218 hiAutomatonCegarLoop]: Abstraction has 40 states and 49 transitions. [2022-11-02 20:16:38,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 49 transitions. [2022-11-02 20:16:38,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-02 20:16:38,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.225) internal successors, (49), 39 states have internal predecessors, (49), 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) [2022-11-02 20:16:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2022-11-02 20:16:38,450 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 49 transitions. [2022-11-02 20:16:38,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:16:38,451 INFO L428 stractBuchiCegarLoop]: Abstraction has 40 states and 49 transitions. [2022-11-02 20:16:38,451 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-02 20:16:38,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 49 transitions. [2022-11-02 20:16:38,454 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-02 20:16:38,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:38,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:38,457 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1] [2022-11-02 20:16:38,458 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:16:38,458 INFO L748 eck$LassoCheckResult]: Stem: 474#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 475#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);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; 486#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 487#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 488#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 489#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 494#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 513#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 512#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 511#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 510#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 509#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 508#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 507#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 506#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 505#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 504#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 503#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 502#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 501#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 500#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 499#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 498#L17-3 assume !(init_nondet_~i~0#1 < 10); 481#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 482#L28-3 [2022-11-02 20:16:38,458 INFO L750 eck$LassoCheckResult]: Loop: 482#L28-3 assume !!(rangesum_~i~1#1 < 10); 483#L29 assume rangesum_~i~1#1 > 5;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; 484#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 482#L28-3 [2022-11-02 20:16:38,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:38,459 INFO L85 PathProgramCache]: Analyzing trace with hash 2127272351, now seen corresponding path program 3 times [2022-11-02 20:16:38,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:38,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907528590] [2022-11-02 20:16:38,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:38,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:38,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:38,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:38,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:38,554 INFO L85 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 4 times [2022-11-02 20:16:38,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:38,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638657835] [2022-11-02 20:16:38,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:38,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:38,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:38,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:38,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:38,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1328180093, now seen corresponding path program 1 times [2022-11-02 20:16:38,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:38,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948555475] [2022-11-02 20:16:38,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:38,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:38,718 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-02 20:16:38,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:38,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948555475] [2022-11-02 20:16:38,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948555475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:38,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:38,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:16:38,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744259244] [2022-11-02 20:16:38,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:38,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:38,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:16:38,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:16:38,790 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:38,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:38,831 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-11-02 20:16:38,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 58 transitions. [2022-11-02 20:16:38,832 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-02 20:16:38,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 58 transitions. [2022-11-02 20:16:38,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-11-02 20:16:38,833 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2022-11-02 20:16:38,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 58 transitions. [2022-11-02 20:16:38,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:38,833 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 58 transitions. [2022-11-02 20:16:38,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 58 transitions. [2022-11-02 20:16:38,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2022-11-02 20:16:38,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 45 states have internal predecessors, (55), 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) [2022-11-02 20:16:38,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2022-11-02 20:16:38,837 INFO L240 hiAutomatonCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-11-02 20:16:38,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:16:38,838 INFO L428 stractBuchiCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-11-02 20:16:38,838 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-02 20:16:38,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 55 transitions. [2022-11-02 20:16:38,839 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-02 20:16:38,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:38,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:38,840 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:38,840 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:16:38,840 INFO L748 eck$LassoCheckResult]: Stem: 571#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 572#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);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; 584#L17-3 assume !!(init_nondet_~i~0#1 < 10);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#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 586#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 587#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 616#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 615#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 614#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 613#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 612#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 611#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 610#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 609#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 608#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 607#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 606#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 605#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 604#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 603#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 602#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 599#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 598#L17-3 assume !(init_nondet_~i~0#1 < 10); 577#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 578#L28-3 assume !!(rangesum_~i~1#1 < 10); 579#L29 assume !(rangesum_~i~1#1 > 5); 580#L28-2 [2022-11-02 20:16:38,840 INFO L750 eck$LassoCheckResult]: Loop: 580#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 581#L28-3 assume !!(rangesum_~i~1#1 < 10); 601#L29 assume rangesum_~i~1#1 > 5;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; 580#L28-2 [2022-11-02 20:16:38,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:38,841 INFO L85 PathProgramCache]: Analyzing trace with hash -95702812, now seen corresponding path program 1 times [2022-11-02 20:16:38,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:38,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4292881] [2022-11-02 20:16:38,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:38,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:38,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:38,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:38,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:38,881 INFO L85 PathProgramCache]: Analyzing trace with hash 60353, now seen corresponding path program 5 times [2022-11-02 20:16:38,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:38,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615589251] [2022-11-02 20:16:38,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:38,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:38,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:38,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:38,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:38,895 INFO L85 PathProgramCache]: Analyzing trace with hash 775842814, now seen corresponding path program 1 times [2022-11-02 20:16:38,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:38,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021382304] [2022-11-02 20:16:38,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:38,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:38,981 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-02 20:16:38,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:38,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021382304] [2022-11-02 20:16:38,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021382304] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:16:38,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745910244] [2022-11-02 20:16:38,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:38,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:16:38,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:38,985 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:16:38,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-02 20:16:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:39,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:16:39,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:39,112 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-02 20:16:39,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:16:39,134 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-02 20:16:39,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745910244] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:16:39,135 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:16:39,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-02 20:16:39,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909353432] [2022-11-02 20:16:39,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:16:39,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:39,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:16:39,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:16:39,199 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. cyclomatic complexity: 14 Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 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) [2022-11-02 20:16:39,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:39,302 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2022-11-02 20:16:39,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 85 transitions. [2022-11-02 20:16:39,303 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2022-11-02 20:16:39,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 76 states and 85 transitions. [2022-11-02 20:16:39,304 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-11-02 20:16:39,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2022-11-02 20:16:39,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 85 transitions. [2022-11-02 20:16:39,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:39,304 INFO L218 hiAutomatonCegarLoop]: Abstraction has 76 states and 85 transitions. [2022-11-02 20:16:39,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 85 transitions. [2022-11-02 20:16:39,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2022-11-02 20:16:39,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 73 states have (on average 1.1232876712328768) internal successors, (82), 72 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) [2022-11-02 20:16:39,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 82 transitions. [2022-11-02 20:16:39,308 INFO L240 hiAutomatonCegarLoop]: Abstraction has 73 states and 82 transitions. [2022-11-02 20:16:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:16:39,309 INFO L428 stractBuchiCegarLoop]: Abstraction has 73 states and 82 transitions. [2022-11-02 20:16:39,309 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-02 20:16:39,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 82 transitions. [2022-11-02 20:16:39,310 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-02 20:16:39,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:39,310 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:39,311 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 4, 4, 3, 1, 1, 1, 1] [2022-11-02 20:16:39,311 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:16:39,311 INFO L748 eck$LassoCheckResult]: Stem: 873#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 874#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);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; 886#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 887#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 888#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 889#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 923#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 922#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 921#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 920#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 919#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 918#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 917#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 916#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 915#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 914#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 913#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 912#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 911#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 910#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 909#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 902#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 901#L17-3 assume !(init_nondet_~i~0#1 < 10); 879#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 880#L28-3 assume !!(rangesum_~i~1#1 < 10); 930#L29 assume !(rangesum_~i~1#1 > 5); 883#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 884#L28-3 assume !!(rangesum_~i~1#1 < 10); 881#L29 assume !(rangesum_~i~1#1 > 5); 882#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 928#L28-3 assume !!(rangesum_~i~1#1 < 10); 927#L29 assume !(rangesum_~i~1#1 > 5); 926#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 925#L28-3 assume !!(rangesum_~i~1#1 < 10); 924#L29 assume !(rangesum_~i~1#1 > 5); 908#L28-2 [2022-11-02 20:16:39,311 INFO L750 eck$LassoCheckResult]: Loop: 908#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 905#L28-3 assume !!(rangesum_~i~1#1 < 10); 906#L29 assume rangesum_~i~1#1 > 5;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; 908#L28-2 [2022-11-02 20:16:39,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:39,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1594065280, now seen corresponding path program 1 times [2022-11-02 20:16:39,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:39,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368669664] [2022-11-02 20:16:39,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:39,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:39,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:39,350 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:39,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:39,351 INFO L85 PathProgramCache]: Analyzing trace with hash 60353, now seen corresponding path program 6 times [2022-11-02 20:16:39,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:39,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004753720] [2022-11-02 20:16:39,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:39,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:39,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:39,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:39,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:39,359 INFO L85 PathProgramCache]: Analyzing trace with hash -654604830, now seen corresponding path program 2 times [2022-11-02 20:16:39,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:39,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099114915] [2022-11-02 20:16:39,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:39,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-02 20:16:39,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:39,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099114915] [2022-11-02 20:16:39,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099114915] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:16:39,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938430348] [2022-11-02 20:16:39,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:16:39,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:16:39,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:39,512 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:16:39,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-02 20:16:39,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:16:39,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:16:39,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:16:39,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:39,656 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-02 20:16:39,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:16:39,710 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-02 20:16:39,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938430348] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:16:39,710 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:16:39,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2022-11-02 20:16:39,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595843570] [2022-11-02 20:16:39,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:16:39,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:39,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:16:39,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:16:39,780 INFO L87 Difference]: Start difference. First operand 73 states and 82 transitions. cyclomatic complexity: 14 Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:39,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:39,901 INFO L93 Difference]: Finished difference Result 94 states and 103 transitions. [2022-11-02 20:16:39,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 103 transitions. [2022-11-02 20:16:39,902 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2022-11-02 20:16:39,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 94 states and 103 transitions. [2022-11-02 20:16:39,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2022-11-02 20:16:39,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2022-11-02 20:16:39,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 103 transitions. [2022-11-02 20:16:39,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:16:39,909 INFO L218 hiAutomatonCegarLoop]: Abstraction has 94 states and 103 transitions. [2022-11-02 20:16:39,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 103 transitions. [2022-11-02 20:16:39,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2022-11-02 20:16:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.098901098901099) internal successors, (100), 90 states have internal predecessors, (100), 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) [2022-11-02 20:16:39,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2022-11-02 20:16:39,914 INFO L240 hiAutomatonCegarLoop]: Abstraction has 91 states and 100 transitions. [2022-11-02 20:16:39,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:16:39,918 INFO L428 stractBuchiCegarLoop]: Abstraction has 91 states and 100 transitions. [2022-11-02 20:16:39,918 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-02 20:16:39,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 100 transitions. [2022-11-02 20:16:39,920 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-02 20:16:39,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:39,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:39,921 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 6, 6, 5, 1, 1, 1, 1] [2022-11-02 20:16:39,921 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:16:39,924 INFO L748 eck$LassoCheckResult]: Stem: 1276#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 1277#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);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; 1289#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1290#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1291#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1292#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1328#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1327#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1326#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1325#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1324#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1323#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1322#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1321#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1320#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1319#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1318#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1317#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1316#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1315#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1314#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1307#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1306#L17-3 assume !(init_nondet_~i~0#1 < 10); 1282#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 1283#L28-3 assume !!(rangesum_~i~1#1 < 10); 1341#L29 assume !(rangesum_~i~1#1 > 5); 1286#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1287#L28-3 assume !!(rangesum_~i~1#1 < 10); 1284#L29 assume !(rangesum_~i~1#1 > 5); 1285#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1339#L28-3 assume !!(rangesum_~i~1#1 < 10); 1338#L29 assume !(rangesum_~i~1#1 > 5); 1337#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1336#L28-3 assume !!(rangesum_~i~1#1 < 10); 1335#L29 assume !(rangesum_~i~1#1 > 5); 1334#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1333#L28-3 assume !!(rangesum_~i~1#1 < 10); 1332#L29 assume !(rangesum_~i~1#1 > 5); 1331#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1330#L28-3 assume !!(rangesum_~i~1#1 < 10); 1329#L29 assume !(rangesum_~i~1#1 > 5); 1313#L28-2 [2022-11-02 20:16:39,924 INFO L750 eck$LassoCheckResult]: Loop: 1313#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1310#L28-3 assume !!(rangesum_~i~1#1 < 10); 1311#L29 assume rangesum_~i~1#1 > 5;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; 1313#L28-2 [2022-11-02 20:16:39,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:39,925 INFO L85 PathProgramCache]: Analyzing trace with hash 2114090752, now seen corresponding path program 2 times [2022-11-02 20:16:39,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:39,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082948498] [2022-11-02 20:16:39,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:39,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:39,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:39,983 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:39,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:39,985 INFO L85 PathProgramCache]: Analyzing trace with hash 60353, now seen corresponding path program 7 times [2022-11-02 20:16:39,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:39,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713270790] [2022-11-02 20:16:39,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:39,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:39,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:39,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:39,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:39,993 INFO L85 PathProgramCache]: Analyzing trace with hash -522805150, now seen corresponding path program 3 times [2022-11-02 20:16:39,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:39,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323513226] [2022-11-02 20:16:39,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:39,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:40,023 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:40,060 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:48,158 WARN L234 SmtUtils]: Spent 8.01s on a formula simplification. DAG size of input: 260 DAG size of output: 197 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-02 20:16:49,167 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:16:49,167 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:16:49,167 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:16:49,167 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:16:49,167 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:16:49,167 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:49,167 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:16:49,167 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:16:49,167 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum10.i_Iteration8_Lasso [2022-11-02 20:16:49,167 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:16:49,167 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:16:49,172 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:49,181 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:49,183 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:49,185 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,397 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,400 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,405 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,408 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,411 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,413 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,416 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,420 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,422 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,425 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,428 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,433 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,435 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,438 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,441 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,443 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,446 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,449 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,453 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:51,998 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:16:51,999 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:16:51,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:51,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,005 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-02 20:16:52,009 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 [2022-11-02 20:16:52,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:16:52,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:16:52,020 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:16:52,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:52,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:52,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,044 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-02 20:16:52,046 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 [2022-11-02 20:16:52,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:16:52,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:16:52,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:16:52,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:52,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:52,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,098 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,100 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 [2022-11-02 20:16:52,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-02 20:16:52,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:16:52,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:16:52,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:16:52,148 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:52,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:52,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,189 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,198 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 [2022-11-02 20:16:52,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-02 20:16:52,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,214 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:52,214 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:52,224 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:52,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:52,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,262 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,269 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 [2022-11-02 20:16:52,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-02 20:16:52,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,283 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:52,283 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:52,287 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:52,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:52,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,359 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-02 20:16:52,360 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 [2022-11-02 20:16:52,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:52,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:52,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:52,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:52,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,424 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-02 20:16:52,426 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 [2022-11-02 20:16:52,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,438 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:52,438 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:52,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:52,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:52,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,466 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-02 20:16:52,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:16:52,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:52,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:52,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:52,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:52,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,528 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-02 20:16:52,530 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:16:52,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,542 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:52,542 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:52,546 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:52,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:52,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,570 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-02 20:16:52,572 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 [2022-11-02 20:16:52,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:52,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:52,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:52,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:52,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,614 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-02 20:16:52,615 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 [2022-11-02 20:16:52,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:52,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:52,631 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:52,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:52,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,657 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-02 20:16:52,660 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 [2022-11-02 20:16:52,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,673 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:52,673 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:52,692 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:52,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-11-02 20:16:52,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,721 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-02 20:16:52,725 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 [2022-11-02 20:16:52,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,737 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:52,737 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:52,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:52,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-11-02 20:16:52,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,763 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-02 20:16:52,766 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 [2022-11-02 20:16:52,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:52,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:52,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:52,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:52,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:16:52,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:16:52,802 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:16:52,835 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-11-02 20:16:52,835 INFO L444 ModelExtractionUtils]: 20 out of 31 variables were initially zero. Simplification set additionally 8 variables to zero. [2022-11-02 20:16:52,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:52,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:52,837 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:52,839 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:16:52,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-02 20:16:52,866 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-02 20:16:52,867 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:16:52,867 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_rangesum_~i~1#1) = -2*ULTIMATE.start_rangesum_~i~1#1 + 17 Supporting invariants [] [2022-11-02 20:16:52,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:53,135 INFO L156 tatePredicateManager]: 41 out of 41 supporting invariants were superfluous and have been removed [2022-11-02 20:16:53,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:53,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:16:53,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:53,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:16:53,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:53,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:53,314 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 [2022-11-02 20:16:53,315 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 91 states and 100 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:53,346 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 91 states and 100 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 104 states and 116 transitions. Complement of second has 7 states. [2022-11-02 20:16:53,347 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 [2022-11-02 20:16:53,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:53,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-02 20:16:53,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 41 letters. Loop has 3 letters. [2022-11-02 20:16:53,349 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:16:53,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 44 letters. Loop has 3 letters. [2022-11-02 20:16:53,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:16:53,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 41 letters. Loop has 6 letters. [2022-11-02 20:16:53,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:16:53,351 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 116 transitions. [2022-11-02 20:16:53,352 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-02 20:16:53,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 93 states and 104 transitions. [2022-11-02 20:16:53,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2022-11-02 20:16:53,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2022-11-02 20:16:53,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 104 transitions. [2022-11-02 20:16:53,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:16:53,353 INFO L218 hiAutomatonCegarLoop]: Abstraction has 93 states and 104 transitions. [2022-11-02 20:16:53,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 104 transitions. [2022-11-02 20:16:53,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-11-02 20:16:53,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.118279569892473) internal successors, (104), 92 states have internal predecessors, (104), 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) [2022-11-02 20:16:53,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 104 transitions. [2022-11-02 20:16:53,367 INFO L240 hiAutomatonCegarLoop]: Abstraction has 93 states and 104 transitions. [2022-11-02 20:16:53,367 INFO L428 stractBuchiCegarLoop]: Abstraction has 93 states and 104 transitions. [2022-11-02 20:16:53,367 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-02 20:16:53,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states and 104 transitions. [2022-11-02 20:16:53,368 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-02 20:16:53,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:53,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:53,370 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:53,370 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:16:53,370 INFO L748 eck$LassoCheckResult]: Stem: 1791#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 1792#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);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; 1807#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1808#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1809#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1810#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1868#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1867#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1866#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1865#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1864#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1863#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1862#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1861#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1860#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1859#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1858#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1857#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1856#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1855#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1854#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 1824#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 1823#L17-3 assume !(init_nondet_~i~0#1 < 10); 1797#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 1798#L28-3 assume !!(rangesum_~i~1#1 < 10); 1799#L29 assume !(rangesum_~i~1#1 > 5); 1800#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1803#L28-3 assume !!(rangesum_~i~1#1 < 10); 1848#L29 assume !(rangesum_~i~1#1 > 5); 1804#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1805#L28-3 assume !!(rangesum_~i~1#1 < 10); 1801#L29 assume !(rangesum_~i~1#1 > 5); 1802#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1845#L28-3 assume !!(rangesum_~i~1#1 < 10); 1843#L29 assume !(rangesum_~i~1#1 > 5); 1841#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1839#L28-3 assume !!(rangesum_~i~1#1 < 10); 1837#L29 assume !(rangesum_~i~1#1 > 5); 1835#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1833#L28-3 assume !!(rangesum_~i~1#1 < 10); 1830#L29 assume !(rangesum_~i~1#1 > 5); 1825#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1818#L28-3 assume !(rangesum_~i~1#1 < 10); 1819#L28-4 assume !(0 != rangesum_~cnt~0#1);rangesum_#res#1 := 0; 1813#L37 main_#t~ret5#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 1795#L28-8 assume !!(rangesum_~i~1#1 < 10); 1796#L29-2 assume !(rangesum_~i~1#1 > 5); 1811#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1812#L28-8 assume !!(rangesum_~i~1#1 < 10); 1853#L29-2 assume !(rangesum_~i~1#1 > 5); 1852#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1851#L28-8 assume !!(rangesum_~i~1#1 < 10); 1850#L29-2 assume !(rangesum_~i~1#1 > 5); 1849#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1847#L28-8 assume !!(rangesum_~i~1#1 < 10); 1846#L29-2 assume !(rangesum_~i~1#1 > 5); 1844#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1842#L28-8 assume !!(rangesum_~i~1#1 < 10); 1840#L29-2 assume !(rangesum_~i~1#1 > 5); 1838#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1836#L28-8 assume !!(rangesum_~i~1#1 < 10); 1834#L29-2 assume !(rangesum_~i~1#1 > 5); 1831#L28-7 [2022-11-02 20:16:53,370 INFO L750 eck$LassoCheckResult]: Loop: 1831#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 1826#L28-8 assume !!(rangesum_~i~1#1 < 10); 1827#L29-2 assume rangesum_~i~1#1 > 5;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; 1831#L28-7 [2022-11-02 20:16:53,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:53,371 INFO L85 PathProgramCache]: Analyzing trace with hash -365260545, now seen corresponding path program 1 times [2022-11-02 20:16:53,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:53,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807628939] [2022-11-02 20:16:53,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:53,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:53,456 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-02 20:16:53,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:53,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807628939] [2022-11-02 20:16:53,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807628939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:53,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:53,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:16:53,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005345199] [2022-11-02 20:16:53,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:53,457 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:16:53,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:53,458 INFO L85 PathProgramCache]: Analyzing trace with hash 85178, now seen corresponding path program 1 times [2022-11-02 20:16:53,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:53,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129254958] [2022-11-02 20:16:53,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:53,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:53,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:53,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:53,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:53,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:53,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:16:53,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:16:53,587 INFO L87 Difference]: Start difference. First operand 93 states and 104 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:53,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:53,645 INFO L93 Difference]: Finished difference Result 108 states and 123 transitions. [2022-11-02 20:16:53,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 123 transitions. [2022-11-02 20:16:53,646 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 16 [2022-11-02 20:16:53,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 106 states and 119 transitions. [2022-11-02 20:16:53,647 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2022-11-02 20:16:53,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2022-11-02 20:16:53,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 106 states and 119 transitions. [2022-11-02 20:16:53,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:16:53,648 INFO L218 hiAutomatonCegarLoop]: Abstraction has 106 states and 119 transitions. [2022-11-02 20:16:53,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states and 119 transitions. [2022-11-02 20:16:53,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 95. [2022-11-02 20:16:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.0947368421052632) internal successors, (104), 94 states have internal predecessors, (104), 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) [2022-11-02 20:16:53,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 104 transitions. [2022-11-02 20:16:53,653 INFO L240 hiAutomatonCegarLoop]: Abstraction has 95 states and 104 transitions. [2022-11-02 20:16:53,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:16:53,654 INFO L428 stractBuchiCegarLoop]: Abstraction has 95 states and 104 transitions. [2022-11-02 20:16:53,654 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-11-02 20:16:53,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 104 transitions. [2022-11-02 20:16:53,655 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2022-11-02 20:16:53,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:53,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:53,656 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 7, 7, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:53,657 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:16:53,657 INFO L748 eck$LassoCheckResult]: Stem: 1999#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 2000#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);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; 2015#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2016#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2017#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2018#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2051#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2050#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2049#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2048#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2047#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2046#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2045#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2044#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2043#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2042#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2041#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2040#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2039#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2038#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2037#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2032#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2031#L17-3 assume !(init_nondet_~i~0#1 < 10); 2005#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 2006#L28-3 assume !!(rangesum_~i~1#1 < 10); 2007#L29 assume !(rangesum_~i~1#1 > 5); 2008#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2011#L28-3 assume !!(rangesum_~i~1#1 < 10); 2077#L29 assume !(rangesum_~i~1#1 > 5); 2012#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2013#L28-3 assume !!(rangesum_~i~1#1 < 10); 2009#L29 assume !(rangesum_~i~1#1 > 5); 2010#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2076#L28-3 assume !!(rangesum_~i~1#1 < 10); 2075#L29 assume !(rangesum_~i~1#1 > 5); 2074#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2073#L28-3 assume !!(rangesum_~i~1#1 < 10); 2072#L29 assume !(rangesum_~i~1#1 > 5); 2071#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2070#L28-3 assume !!(rangesum_~i~1#1 < 10); 2069#L29 assume !(rangesum_~i~1#1 > 5); 2054#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2068#L28-3 assume !!(rangesum_~i~1#1 < 10); 2053#L29 assume rangesum_~i~1#1 > 5;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; 2033#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2026#L28-3 assume !(rangesum_~i~1#1 < 10); 2027#L28-4 assume !(0 != rangesum_~cnt~0#1);rangesum_#res#1 := 0; 2020#L37 main_#t~ret5#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 2021#L28-8 assume !!(rangesum_~i~1#1 < 10); 2030#L29-2 assume !(rangesum_~i~1#1 > 5); 2019#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2003#L28-8 assume !!(rangesum_~i~1#1 < 10); 2004#L29-2 assume !(rangesum_~i~1#1 > 5); 2067#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2066#L28-8 assume !!(rangesum_~i~1#1 < 10); 2065#L29-2 assume !(rangesum_~i~1#1 > 5); 2064#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2063#L28-8 assume !!(rangesum_~i~1#1 < 10); 2062#L29-2 assume !(rangesum_~i~1#1 > 5); 2061#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2060#L28-8 assume !!(rangesum_~i~1#1 < 10); 2059#L29-2 assume !(rangesum_~i~1#1 > 5); 2058#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2057#L28-8 assume !!(rangesum_~i~1#1 < 10); 2056#L29-2 assume !(rangesum_~i~1#1 > 5); 2052#L28-7 [2022-11-02 20:16:53,657 INFO L750 eck$LassoCheckResult]: Loop: 2052#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2055#L28-8 assume !!(rangesum_~i~1#1 < 10); 2035#L29-2 assume !(rangesum_~i~1#1 > 5); 2052#L28-7 [2022-11-02 20:16:53,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:53,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1039890653, now seen corresponding path program 1 times [2022-11-02 20:16:53,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:53,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068779557] [2022-11-02 20:16:53,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:53,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:53,739 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-11-02 20:16:53,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:53,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068779557] [2022-11-02 20:16:53,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068779557] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:16:53,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700742171] [2022-11-02 20:16:53,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:53,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:16:53,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:53,741 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:16:53,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-11-02 20:16:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:53,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:16:53,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:53,920 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-11-02 20:16:53,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:53,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700742171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:53,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:16:53,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-02 20:16:53,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983689595] [2022-11-02 20:16:53,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:53,922 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:16:53,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:53,923 INFO L85 PathProgramCache]: Analyzing trace with hash 85180, now seen corresponding path program 1 times [2022-11-02 20:16:53,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:53,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599848840] [2022-11-02 20:16:53,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:53,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:53,926 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:53,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:53,945 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:16:53,945 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:16:53,945 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:16:53,945 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:16:53,945 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:16:53,945 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:53,945 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:16:53,945 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:16:53,946 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum10.i_Iteration10_Loop [2022-11-02 20:16:53,946 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:16:53,946 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:16:53,948 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:53,951 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:53,976 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:16:53,977 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:16:53,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:53,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:53,980 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:53,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:16:53,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:16:54,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-02 20:16:54,021 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:16:54,021 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: [] [2022-11-02 20:16:54,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:54,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:54,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:54,060 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:54,064 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:16:54,064 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:16:54,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-02 20:16:54,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:54,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:54,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:54,140 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:54,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:16:54,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:16:54,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-02 20:16:54,288 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:16:54,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:54,298 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:16:54,298 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:16:54,298 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:16:54,298 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:16:54,298 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:16:54,298 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:54,298 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:16:54,299 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:16:54,299 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum10.i_Iteration10_Loop [2022-11-02 20:16:54,299 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:16:54,299 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:16:54,299 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:54,302 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:16:54,322 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:16:54,322 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:16:54,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:54,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:54,324 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:54,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-02 20:16:54,327 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 [2022-11-02 20:16:54,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:54,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:16:54,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:54,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:54,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:54,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:16:54,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:16:54,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:16:54,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:54,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:54,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:54,381 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:54,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-02 20:16:54,389 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 [2022-11-02 20:16:54,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:16:54,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:16:54,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:16:54,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:16:54,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:16:54,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:16:54,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:16:54,402 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:16:54,405 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:16:54,405 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:16:54,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:16:54,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:54,407 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:16:54,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-02 20:16:54,409 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:16:54,409 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:16:54,409 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:16:54,409 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_rangesum_~i~1#1) = -2*ULTIMATE.start_rangesum_~i~1#1 + 9 Supporting invariants [] [2022-11-02 20:16:54,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-11-02 20:16:54,431 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:16:54,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:54,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:16:54,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:54,621 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:16:54,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:54,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:16:54,634 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 [2022-11-02 20:16:54,634 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 95 states and 104 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:54,673 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 95 states and 104 transitions. cyclomatic complexity: 14. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 114 states and 126 transitions. Complement of second has 5 states. [2022-11-02 20:16:54,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-02 20:16:54,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:54,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2022-11-02 20:16:54,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 65 letters. Loop has 3 letters. [2022-11-02 20:16:54,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:16:54,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 68 letters. Loop has 3 letters. [2022-11-02 20:16:54,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:16:54,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 65 letters. Loop has 6 letters. [2022-11-02 20:16:54,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:16:54,677 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 126 transitions. [2022-11-02 20:16:54,678 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-02 20:16:54,679 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 99 states and 109 transitions. [2022-11-02 20:16:54,679 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-02 20:16:54,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-02 20:16:54,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 109 transitions. [2022-11-02 20:16:54,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:16:54,680 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 109 transitions. [2022-11-02 20:16:54,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 109 transitions. [2022-11-02 20:16:54,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2022-11-02 20:16:54,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.1020408163265305) internal successors, (108), 97 states have internal predecessors, (108), 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) [2022-11-02 20:16:54,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2022-11-02 20:16:54,684 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 108 transitions. [2022-11-02 20:16:54,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:54,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:16:54,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:16:54,685 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:16:54,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:54,728 INFO L93 Difference]: Finished difference Result 109 states and 122 transitions. [2022-11-02 20:16:54,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 122 transitions. [2022-11-02 20:16:54,730 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2022-11-02 20:16:54,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 109 states and 122 transitions. [2022-11-02 20:16:54,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2022-11-02 20:16:54,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2022-11-02 20:16:54,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 122 transitions. [2022-11-02 20:16:54,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:16:54,731 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 122 transitions. [2022-11-02 20:16:54,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 122 transitions. [2022-11-02 20:16:54,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 98. [2022-11-02 20:16:54,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.0816326530612246) internal successors, (106), 97 states have internal predecessors, (106), 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) [2022-11-02 20:16:54,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2022-11-02 20:16:54,736 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 106 transitions. [2022-11-02 20:16:54,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:16:54,737 INFO L428 stractBuchiCegarLoop]: Abstraction has 98 states and 106 transitions. [2022-11-02 20:16:54,737 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-11-02 20:16:54,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 106 transitions. [2022-11-02 20:16:54,738 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-02 20:16:54,738 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:54,738 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:54,740 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:54,740 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:16:54,740 INFO L748 eck$LassoCheckResult]: Stem: 2832#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 2833#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);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; 2850#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2851#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2852#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2853#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2889#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2888#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2887#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2886#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2885#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2884#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2883#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2882#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2881#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2880#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2879#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2878#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2875#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2873#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2872#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 2869#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 2868#L17-3 assume !(init_nondet_~i~0#1 < 10); 2840#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 2841#L28-3 assume !!(rangesum_~i~1#1 < 10); 2842#L29 assume !(rangesum_~i~1#1 > 5); 2843#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2847#L28-3 assume !!(rangesum_~i~1#1 < 10); 2902#L29 assume !(rangesum_~i~1#1 > 5); 2848#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2849#L28-3 assume !!(rangesum_~i~1#1 < 10); 2844#L29 assume !(rangesum_~i~1#1 > 5); 2845#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2901#L28-3 assume !!(rangesum_~i~1#1 < 10); 2900#L29 assume !(rangesum_~i~1#1 > 5); 2899#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2898#L28-3 assume !!(rangesum_~i~1#1 < 10); 2897#L29 assume !(rangesum_~i~1#1 > 5); 2896#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2895#L28-3 assume !!(rangesum_~i~1#1 < 10); 2894#L29 assume !(rangesum_~i~1#1 > 5); 2877#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2893#L28-3 assume !!(rangesum_~i~1#1 < 10); 2876#L29 assume rangesum_~i~1#1 > 5;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; 2874#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2863#L28-3 assume !(rangesum_~i~1#1 < 10); 2864#L28-4 assume 0 != rangesum_~cnt~0#1;rangesum_#res#1 := (if (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 <= 2147483647 then (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 else (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 - 4294967296); 2858#L37 main_#t~ret5#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 2859#L28-8 assume !!(rangesum_~i~1#1 < 10); 2867#L29-2 assume !(rangesum_~i~1#1 > 5); 2854#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2838#L28-8 assume !!(rangesum_~i~1#1 < 10); 2839#L29-2 assume !(rangesum_~i~1#1 > 5); 2855#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2856#L28-8 assume !!(rangesum_~i~1#1 < 10); 2913#L29-2 assume !(rangesum_~i~1#1 > 5); 2912#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2911#L28-8 assume !!(rangesum_~i~1#1 < 10); 2910#L29-2 assume !(rangesum_~i~1#1 > 5); 2909#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2908#L28-8 assume !!(rangesum_~i~1#1 < 10); 2905#L29-2 assume !(rangesum_~i~1#1 > 5); 2906#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2907#L28-8 assume !!(rangesum_~i~1#1 < 10); 2892#L29-2 assume !(rangesum_~i~1#1 > 5); 2890#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2836#L28-8 assume !!(rangesum_~i~1#1 < 10); 2837#L29-2 [2022-11-02 20:16:54,741 INFO L750 eck$LassoCheckResult]: Loop: 2837#L29-2 assume rangesum_~i~1#1 > 5;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; 2871#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 2870#L28-8 assume !!(rangesum_~i~1#1 < 10); 2837#L29-2 [2022-11-02 20:16:54,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:54,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1815162476, now seen corresponding path program 1 times [2022-11-02 20:16:54,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:54,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434741985] [2022-11-02 20:16:54,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:54,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:54,786 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:16:54,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697596438] [2022-11-02 20:16:54,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:54,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:16:54,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:54,803 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:16:54,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-02 20:16:54,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-11-02 20:16:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:16:54,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:16:54,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:55,047 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-02 20:16:55,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:16:55,169 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-02 20:16:55,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:55,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434741985] [2022-11-02 20:16:55,170 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:16:55,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697596438] [2022-11-02 20:16:55,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697596438] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:16:55,171 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:16:55,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2022-11-02 20:16:55,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618810528] [2022-11-02 20:16:55,171 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:16:55,172 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:16:55,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:55,172 INFO L85 PathProgramCache]: Analyzing trace with hash 81548, now seen corresponding path program 2 times [2022-11-02 20:16:55,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:55,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905748485] [2022-11-02 20:16:55,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:55,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:55,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:55,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:55,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:55,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:16:55,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:16:55,262 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. cyclomatic complexity: 14 Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 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) [2022-11-02 20:16:55,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:55,458 INFO L93 Difference]: Finished difference Result 145 states and 162 transitions. [2022-11-02 20:16:55,458 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 145 states and 162 transitions. [2022-11-02 20:16:55,460 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2022-11-02 20:16:55,461 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 145 states to 139 states and 156 transitions. [2022-11-02 20:16:55,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2022-11-02 20:16:55,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2022-11-02 20:16:55,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 156 transitions. [2022-11-02 20:16:55,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:16:55,462 INFO L218 hiAutomatonCegarLoop]: Abstraction has 139 states and 156 transitions. [2022-11-02 20:16:55,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states and 156 transitions. [2022-11-02 20:16:55,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 116. [2022-11-02 20:16:55,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 116 states have (on average 1.0948275862068966) internal successors, (127), 115 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) [2022-11-02 20:16:55,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 127 transitions. [2022-11-02 20:16:55,466 INFO L240 hiAutomatonCegarLoop]: Abstraction has 116 states and 127 transitions. [2022-11-02 20:16:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:16:55,467 INFO L428 stractBuchiCegarLoop]: Abstraction has 116 states and 127 transitions. [2022-11-02 20:16:55,468 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-11-02 20:16:55,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 127 transitions. [2022-11-02 20:16:55,469 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-02 20:16:55,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:55,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:55,470 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 10, 10, 10, 9, 6, 6, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:55,470 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:16:55,470 INFO L748 eck$LassoCheckResult]: Stem: 3486#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 3487#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);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; 3505#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 3506#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 3507#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 3508#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 3561#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 3559#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 3557#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 3555#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 3553#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 3551#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 3549#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 3547#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 3545#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 3543#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 3541#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 3539#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 3537#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 3535#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 3530#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 3526#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 3525#L17-3 assume !(init_nondet_~i~0#1 < 10); 3494#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 3495#L28-3 assume !!(rangesum_~i~1#1 < 10); 3496#L29 assume !(rangesum_~i~1#1 > 5); 3497#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3500#L28-3 assume !!(rangesum_~i~1#1 < 10); 3520#L29 assume !(rangesum_~i~1#1 > 5); 3501#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3502#L28-3 assume !!(rangesum_~i~1#1 < 10); 3498#L29 assume !(rangesum_~i~1#1 > 5); 3499#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3577#L28-3 assume !!(rangesum_~i~1#1 < 10); 3576#L29 assume !(rangesum_~i~1#1 > 5); 3575#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3574#L28-3 assume !!(rangesum_~i~1#1 < 10); 3573#L29 assume !(rangesum_~i~1#1 > 5); 3572#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3571#L28-3 assume !!(rangesum_~i~1#1 < 10); 3570#L29 assume !(rangesum_~i~1#1 > 5); 3534#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3569#L28-3 assume !!(rangesum_~i~1#1 < 10); 3568#L29 assume rangesum_~i~1#1 > 5;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; 3567#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3566#L28-3 assume !!(rangesum_~i~1#1 < 10); 3565#L29 assume rangesum_~i~1#1 > 5;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; 3564#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3563#L28-3 assume !!(rangesum_~i~1#1 < 10); 3562#L29 assume rangesum_~i~1#1 > 5;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; 3533#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3536#L28-3 assume !!(rangesum_~i~1#1 < 10); 3531#L29 assume rangesum_~i~1#1 > 5;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; 3532#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3518#L28-3 assume !(rangesum_~i~1#1 < 10); 3519#L28-4 assume 0 != rangesum_~cnt~0#1;rangesum_#res#1 := (if (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 <= 2147483647 then (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 else (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 - 4294967296); 3512#L37 main_#t~ret5#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 3490#L28-8 assume !!(rangesum_~i~1#1 < 10); 3491#L29-2 assume !(rangesum_~i~1#1 > 5); 3509#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3510#L28-8 assume !!(rangesum_~i~1#1 < 10); 3581#L29-2 assume !(rangesum_~i~1#1 > 5); 3580#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3578#L28-8 assume !!(rangesum_~i~1#1 < 10); 3579#L29-2 assume !(rangesum_~i~1#1 > 5); 3586#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3585#L28-8 assume !!(rangesum_~i~1#1 < 10); 3584#L29-2 assume !(rangesum_~i~1#1 > 5); 3583#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3582#L28-8 assume !!(rangesum_~i~1#1 < 10); 3523#L29-2 assume !(rangesum_~i~1#1 > 5); 3524#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3587#L28-8 assume !!(rangesum_~i~1#1 < 10); 3560#L29-2 assume !(rangesum_~i~1#1 > 5); 3558#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3556#L28-8 assume !!(rangesum_~i~1#1 < 10); 3554#L29-2 assume rangesum_~i~1#1 > 5;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; 3552#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3550#L28-8 assume !!(rangesum_~i~1#1 < 10); 3548#L29-2 assume rangesum_~i~1#1 > 5;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; 3546#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3544#L28-8 assume !!(rangesum_~i~1#1 < 10); 3542#L29-2 assume rangesum_~i~1#1 > 5;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; 3540#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3538#L28-8 assume !!(rangesum_~i~1#1 < 10); 3528#L29-2 [2022-11-02 20:16:55,471 INFO L750 eck$LassoCheckResult]: Loop: 3528#L29-2 assume rangesum_~i~1#1 > 5;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; 3529#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 3527#L28-8 assume !!(rangesum_~i~1#1 < 10); 3528#L29-2 [2022-11-02 20:16:55,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:55,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1484601769, now seen corresponding path program 1 times [2022-11-02 20:16:55,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:55,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782276028] [2022-11-02 20:16:55,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:55,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:55,497 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:16:55,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005237295] [2022-11-02 20:16:55,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:55,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:16:55,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:55,499 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:16:55,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-11-02 20:16:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:55,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:55,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:55,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:55,852 INFO L85 PathProgramCache]: Analyzing trace with hash 81548, now seen corresponding path program 3 times [2022-11-02 20:16:55,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:55,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813648091] [2022-11-02 20:16:55,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:55,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:55,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:55,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:55,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:55,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1801965686, now seen corresponding path program 2 times [2022-11-02 20:16:55,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:55,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683479488] [2022-11-02 20:16:55,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:55,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:55,886 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:16:55,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1938783295] [2022-11-02 20:16:55,886 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:16:55,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:16:55,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:55,908 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:16:55,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-11-02 20:16:56,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:16:56,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:16:56,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:16:56,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:16:56,111 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2022-11-02 20:16:56,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:16:56,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:16:56,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683479488] [2022-11-02 20:16:56,111 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:16:56,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938783295] [2022-11-02 20:16:56,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938783295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:16:56,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:16:56,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:16:56,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511525173] [2022-11-02 20:16:56,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:16:56,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:16:56,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:16:56,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:16:56,167 INFO L87 Difference]: Start difference. First operand 116 states and 127 transitions. cyclomatic complexity: 17 Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 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) [2022-11-02 20:16:56,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:16:56,294 INFO L93 Difference]: Finished difference Result 139 states and 143 transitions. [2022-11-02 20:16:56,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 139 states and 143 transitions. [2022-11-02 20:16:56,295 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-02 20:16:56,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 139 states to 115 states and 119 transitions. [2022-11-02 20:16:56,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2022-11-02 20:16:56,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 61 [2022-11-02 20:16:56,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 119 transitions. [2022-11-02 20:16:56,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:16:56,297 INFO L218 hiAutomatonCegarLoop]: Abstraction has 115 states and 119 transitions. [2022-11-02 20:16:56,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 119 transitions. [2022-11-02 20:16:56,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 96. [2022-11-02 20:16:56,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.0416666666666667) internal successors, (100), 95 states have internal predecessors, (100), 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) [2022-11-02 20:16:56,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 100 transitions. [2022-11-02 20:16:56,300 INFO L240 hiAutomatonCegarLoop]: Abstraction has 96 states and 100 transitions. [2022-11-02 20:16:56,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:16:56,301 INFO L428 stractBuchiCegarLoop]: Abstraction has 96 states and 100 transitions. [2022-11-02 20:16:56,301 INFO L335 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2022-11-02 20:16:56,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 100 transitions. [2022-11-02 20:16:56,302 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-02 20:16:56,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:16:56,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:16:56,304 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:16:56,304 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 20:16:56,304 INFO L748 eck$LassoCheckResult]: Stem: 4014#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2); 4015#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem11#1, main_#t~post10#1, main_~i~2#1, main_#t~ret12#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(40);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; 4031#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 4032#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 4033#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 4034#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 4098#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 4096#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 4094#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 4092#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 4090#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 4088#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 4086#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 4085#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 4083#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 4080#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 4075#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 4074#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 4073#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 4072#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 4071#L17-3 assume !!(init_nondet_~i~0#1 < 10);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; 4051#L17-2 init_nondet_#t~post1#1 := init_nondet_~i~0#1;init_nondet_~i~0#1 := 1 + init_nondet_#t~post1#1;havoc init_nondet_#t~post1#1; 4050#L17-3 assume !(init_nondet_~i~0#1 < 10); 4022#L15 assume { :end_inline_init_nondet } true;havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 4023#L28-3 assume !!(rangesum_~i~1#1 < 10); 4024#L29 assume !(rangesum_~i~1#1 > 5); 4025#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4028#L28-3 assume !!(rangesum_~i~1#1 < 10); 4026#L29 assume !(rangesum_~i~1#1 > 5); 4027#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4029#L28-3 assume !!(rangesum_~i~1#1 < 10); 4102#L29 assume !(rangesum_~i~1#1 > 5); 4101#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4100#L28-3 assume !!(rangesum_~i~1#1 < 10); 4099#L29 assume !(rangesum_~i~1#1 > 5); 4097#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4095#L28-3 assume !!(rangesum_~i~1#1 < 10); 4093#L29 assume !(rangesum_~i~1#1 > 5); 4091#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4089#L28-3 assume !!(rangesum_~i~1#1 < 10); 4087#L29 assume !(rangesum_~i~1#1 > 5); 4082#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4084#L28-3 assume !!(rangesum_~i~1#1 < 10); 4081#L29 assume rangesum_~i~1#1 > 5;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; 4079#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4043#L28-3 assume !!(rangesum_~i~1#1 < 10); 4044#L29 assume rangesum_~i~1#1 > 5;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; 4068#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4066#L28-3 assume !!(rangesum_~i~1#1 < 10); 4064#L29 assume rangesum_~i~1#1 > 5;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; 4062#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4060#L28-3 assume !!(rangesum_~i~1#1 < 10); 4058#L29 assume rangesum_~i~1#1 > 5;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; 4056#L28-2 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4054#L28-3 assume !(rangesum_~i~1#1 < 10); 4046#L28-4 assume 0 != rangesum_~cnt~0#1;rangesum_#res#1 := (if (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 <= 2147483647 then (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 else (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 - 4294967296); 4038#L37 main_#t~ret5#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret~1#1 := main_#t~ret5#1;havoc main_#t~ret5#1;call main_#t~mem6#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem6#1;havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem7#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem7#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_rangesum } true;rangesum_#in~x#1.base, rangesum_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc rangesum_#res#1;havoc rangesum_#t~mem4#1, rangesum_#t~post3#1, rangesum_~x#1.base, rangesum_~x#1.offset, rangesum_~i~1#1, rangesum_~ret~0#1, rangesum_~cnt~0#1;rangesum_~x#1.base, rangesum_~x#1.offset := rangesum_#in~x#1.base, rangesum_#in~x#1.offset;havoc rangesum_~i~1#1;havoc rangesum_~ret~0#1;rangesum_~ret~0#1 := 0;rangesum_~cnt~0#1 := 0;rangesum_~i~1#1 := 0; 4039#L28-8 assume !!(rangesum_~i~1#1 < 10); 4048#L29-2 assume !(rangesum_~i~1#1 > 5); 4035#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4036#L28-8 assume !!(rangesum_~i~1#1 < 10); 4109#L29-2 assume !(rangesum_~i~1#1 > 5); 4037#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4020#L28-8 assume !!(rangesum_~i~1#1 < 10); 4021#L29-2 assume !(rangesum_~i~1#1 > 5); 4049#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4108#L28-8 assume !!(rangesum_~i~1#1 < 10); 4107#L29-2 assume !(rangesum_~i~1#1 > 5); 4106#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4105#L28-8 assume !!(rangesum_~i~1#1 < 10); 4104#L29-2 assume !(rangesum_~i~1#1 > 5); 4103#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4077#L28-8 assume !!(rangesum_~i~1#1 < 10); 4078#L29-2 assume !(rangesum_~i~1#1 > 5); 4076#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4018#L28-8 assume !!(rangesum_~i~1#1 < 10); 4019#L29-2 assume rangesum_~i~1#1 > 5;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; 4070#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4069#L28-8 assume !!(rangesum_~i~1#1 < 10); 4067#L29-2 assume rangesum_~i~1#1 > 5;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; 4065#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4063#L28-8 assume !!(rangesum_~i~1#1 < 10); 4061#L29-2 assume rangesum_~i~1#1 > 5;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; 4059#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4057#L28-8 assume !!(rangesum_~i~1#1 < 10); 4055#L29-2 assume rangesum_~i~1#1 > 5;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; 4053#L28-7 rangesum_#t~post3#1 := rangesum_~i~1#1;rangesum_~i~1#1 := 1 + rangesum_#t~post3#1;havoc rangesum_#t~post3#1; 4052#L28-8 assume !(rangesum_~i~1#1 < 10); 4045#L28-9 assume 0 != rangesum_~cnt~0#1;rangesum_#res#1 := (if (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 <= 2147483647 then (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 else (if rangesum_~ret~0#1 < 0 && 0 != rangesum_~ret~0#1 % rangesum_~cnt~0#1 then (if rangesum_~cnt~0#1 < 0 then rangesum_~ret~0#1 / rangesum_~cnt~0#1 - 1 else 1 + rangesum_~ret~0#1 / rangesum_~cnt~0#1) else rangesum_~ret~0#1 / rangesum_~cnt~0#1) % 4294967296 - 4294967296); 4040#L37-1 main_#t~ret8#1 := rangesum_#res#1;assume { :end_inline_rangesum } true;main_~ret2~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;main_~i~2#1 := 0; 4041#L54-3 [2022-11-02 20:16:56,330 INFO L750 eck$LassoCheckResult]: Loop: 4041#L54-3 assume !!(main_~i~2#1 < 9);call main_#t~mem11#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~2#1), 4);call write~int(main_#t~mem11#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~2#1, 4);havoc main_#t~mem11#1; 4042#L54-2 main_#t~post10#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 4041#L54-3 [2022-11-02 20:16:56,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:56,332 INFO L85 PathProgramCache]: Analyzing trace with hash 817204024, now seen corresponding path program 1 times [2022-11-02 20:16:56,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:56,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884686117] [2022-11-02 20:16:56,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:56,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:56,358 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:16:56,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31379802] [2022-11-02 20:16:56,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:56,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:16:56,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:56,361 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:16:56,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2022-11-02 20:16:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:56,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:56,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:56,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:56,720 INFO L85 PathProgramCache]: Analyzing trace with hash 3331, now seen corresponding path program 1 times [2022-11-02 20:16:56,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:56,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587355318] [2022-11-02 20:16:56,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:56,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:56,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:56,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:16:56,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:16:56,730 INFO L85 PathProgramCache]: Analyzing trace with hash -645945734, now seen corresponding path program 1 times [2022-11-02 20:16:56,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:16:56,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558286195] [2022-11-02 20:16:56,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:56,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:16:56,750 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:16:56,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886015255] [2022-11-02 20:16:56,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:16:56,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:16:56,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:16:56,756 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:16:56,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bb089a-10d1-4cd4-9c4c-53182623891f/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2022-11-02 20:16:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:56,998 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:16:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:16:57,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:19:25,896 WARN L234 SmtUtils]: Spent 2.48m on a formula simplification. DAG size of input: 533 DAG size of output: 391 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)