./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum05.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum05.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aee69f990ab81a58f1fe8cd275c8a09f43ca6a442f73810f885d3d0c9a85d2b3 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:06:45,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:06:45,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:06:45,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:06:45,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:06:45,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:06:45,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:06:45,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:06:45,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:06:45,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:06:45,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:06:45,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:06:45,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:06:45,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:06:45,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:06:45,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:06:45,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:06:45,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:06:45,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:06:45,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:06:45,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:06:45,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:06:45,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:06:45,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:06:45,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:06:45,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:06:45,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:06:45,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:06:45,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:06:45,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:06:45,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:06:45,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:06:45,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:06:45,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:06:45,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:06:45,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:06:45,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:06:45,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:06:45,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:06:45,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:06:45,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:06:45,983 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:06:46,025 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:06:46,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:06:46,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:06:46,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:06:46,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:06:46,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:06:46,028 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:06:46,028 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:06:46,028 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:06:46,028 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:06:46,028 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:06:46,028 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:06:46,029 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:06:46,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:06:46,029 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:06:46,029 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:06:46,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:06:46,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:06:46,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:06:46,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:06:46,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:06:46,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:06:46,030 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:06:46,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:06:46,031 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:06:46,031 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:06:46,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:06:46,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:06:46,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:06:46,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:06:46,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:06:46,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:06:46,033 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:06:46,034 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_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aee69f990ab81a58f1fe8cd275c8a09f43ca6a442f73810f885d3d0c9a85d2b3 [2021-10-21 19:06:46,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:06:46,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:06:46,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:06:46,314 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:06:46,316 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:06:46,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/reducercommutativity/rangesum05.i [2021-10-21 19:06:46,375 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/data/c52e4a287/06c09ed0a28e477fbdda987112f298fb/FLAG99e0c1405 [2021-10-21 19:06:46,849 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:06:46,850 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/sv-benchmarks/c/reducercommutativity/rangesum05.i [2021-10-21 19:06:46,863 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/data/c52e4a287/06c09ed0a28e477fbdda987112f298fb/FLAG99e0c1405 [2021-10-21 19:06:47,202 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/data/c52e4a287/06c09ed0a28e477fbdda987112f298fb [2021-10-21 19:06:47,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:06:47,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:06:47,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:06:47,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:06:47,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:06:47,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:06:47" (1/1) ... [2021-10-21 19:06:47,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32379f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:47, skipping insertion in model container [2021-10-21 19:06:47,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:06:47" (1/1) ... [2021-10-21 19:06:47,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:06:47,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:06:47,460 WARN L228 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_d279f54a-b178-45c2-bd28-2d854202cbcf/sv-benchmarks/c/reducercommutativity/rangesum05.i[1457,1470] [2021-10-21 19:06:47,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:06:47,467 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:06:47,489 WARN L228 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_d279f54a-b178-45c2-bd28-2d854202cbcf/sv-benchmarks/c/reducercommutativity/rangesum05.i[1457,1470] [2021-10-21 19:06:47,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:06:47,503 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:06:47,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:47 WrapperNode [2021-10-21 19:06:47,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:06:47,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:06:47,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:06:47,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:06:47,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:47" (1/1) ... [2021-10-21 19:06:47,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:47" (1/1) ... [2021-10-21 19:06:47,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:06:47,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:06:47,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:06:47,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:06:47,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:47" (1/1) ... [2021-10-21 19:06:47,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:47" (1/1) ... [2021-10-21 19:06:47,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:47" (1/1) ... [2021-10-21 19:06:47,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:47" (1/1) ... [2021-10-21 19:06:47,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:47" (1/1) ... [2021-10-21 19:06:47,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:47" (1/1) ... [2021-10-21 19:06:47,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:47" (1/1) ... [2021-10-21 19:06:47,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:06:47,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:06:47,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:06:47,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:06:47,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:47" (1/1) ... [2021-10-21 19:06:47,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:47,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:47,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:47,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:06:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:06:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:06:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:06:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:06:47,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:06:47,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:06:47,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:06:47,934 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:06:47,935 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-21 19:06:47,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:47 BoogieIcfgContainer [2021-10-21 19:06:47,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:06:47,938 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:06:47,938 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:06:47,941 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:06:47,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:06:47,942 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:06:47" (1/3) ... [2021-10-21 19:06:47,944 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1051aeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:06:47, skipping insertion in model container [2021-10-21 19:06:47,944 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:06:47,944 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:06:47" (2/3) ... [2021-10-21 19:06:47,945 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1051aeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:06:47, skipping insertion in model container [2021-10-21 19:06:47,945 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:06:47,945 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:06:47" (3/3) ... [2021-10-21 19:06:47,946 INFO L389 chiAutomizerObserver]: Analyzing ICFG rangesum05.i [2021-10-21 19:06:48,009 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:06:48,009 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:06:48,009 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:06:48,010 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:06:48,010 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:06:48,010 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:06:48,010 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:06:48,010 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:06:48,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:48,045 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-10-21 19:06:48,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:48,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:48,063 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:06:48,063 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:06:48,064 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:06:48,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:48,067 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-10-21 19:06:48,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:48,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:48,068 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:06:48,068 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:06:48,075 INFO L791 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 7#L-1true havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 22#L17-3true [2021-10-21 19:06:48,075 INFO L793 eck$LassoCheckResult]: Loop: 22#L17-3true assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 11#L17-2true init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 22#L17-3true [2021-10-21 19:06:48,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:48,081 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-21 19:06:48,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:48,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021148934] [2021-10-21 19:06:48,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:48,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:48,191 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:48,233 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:48,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:48,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-21 19:06:48,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:48,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046269237] [2021-10-21 19:06:48,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:48,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:48,250 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:48,275 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:48,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:48,278 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-21 19:06:48,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:48,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118823817] [2021-10-21 19:06:48,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:48,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:48,333 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:48,381 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:48,964 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:06:48,964 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:06:48,965 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:06:48,965 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:06:48,965 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:06:48,965 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:48,965 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:06:48,965 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:06:48,966 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration1_Lasso [2021-10-21 19:06:48,966 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:06:48,966 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:06:48,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:48,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:48,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:48,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:48,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:49,603 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:06:49,612 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:06:49,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:49,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:49,620 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:49,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:49,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:49,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:49,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:49,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:49,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:49,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:49,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:49,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:06:49,653 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:49,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:49,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:49,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:49,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:49,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:49,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:49,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:49,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:49,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:49,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:49,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:49,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:49,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:06:49,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:49,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:49,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:49,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:49,743 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:49,772 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:49,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:49,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:49,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:49,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:49,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:49,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:49,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:49,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:06:49,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:49,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:49,827 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:49,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:49,828 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:49,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:06:49,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:49,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:49,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:49,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:49,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:49,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:49,844 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:49,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:49,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:49,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:49,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:49,901 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:49,910 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:49,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:49,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:49,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:49,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:49,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:49,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:49,921 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:49,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:06:49,932 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:49,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:49,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:49,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:49,970 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:49,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:06:49,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:49,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:49,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:49,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:49,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:49,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:49,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:49,981 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:49,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:50,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:50,023 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:50,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:50,024 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:50,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:06:50,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:50,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:50,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:50,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:50,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:50,040 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:50,040 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:50,068 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:50,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:50,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:50,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:50,105 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:50,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:06:50,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:50,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:50,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:50,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:50,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:50,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:50,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:50,148 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:06:50,182 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-10-21 19:06:50,182 INFO L444 ModelExtractionUtils]: 15 out of 25 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-10-21 19:06:50,184 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:50,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:50,200 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:50,232 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:06:50,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:06:50,255 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:06:50,256 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:06:50,256 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_init_nondet_~i~0, v_rep(select #length ULTIMATE.start_main_~#x~0.base)_1) = -8*ULTIMATE.start_init_nondet_~i~0 + 9*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_1 Supporting invariants [] [2021-10-21 19:06:50,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:50,342 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2021-10-21 19:06:50,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:50,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:06:50,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:50,433 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:06:50,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:50,513 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:06:50,514 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 28 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:50,619 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. [2021-10-21 19:06:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:06:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:50,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-10-21 19:06:50,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 79 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-21 19:06:50,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:06:50,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 79 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 19:06:50,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:06:50,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 79 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-21 19:06:50,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:06:50,641 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 119 transitions. [2021-10-21 19:06:50,647 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:50,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 22 states and 32 transitions. [2021-10-21 19:06:50,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-21 19:06:50,652 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-21 19:06:50,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 32 transitions. [2021-10-21 19:06:50,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:06:50,653 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 32 transitions. [2021-10-21 19:06:50,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 32 transitions. [2021-10-21 19:06:50,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-21 19:06:50,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:50,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 32 transitions. [2021-10-21 19:06:50,677 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 32 transitions. [2021-10-21 19:06:50,677 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 32 transitions. [2021-10-21 19:06:50,677 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:06:50,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 32 transitions. [2021-10-21 19:06:50,679 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:50,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:50,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:50,679 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 19:06:50,679 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:06:50,680 INFO L791 eck$LassoCheckResult]: Stem: 192#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 193#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 204#L17-3 assume !(init_nondet_~i~0 < 5); 201#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 202#L28-3 [2021-10-21 19:06:50,680 INFO L793 eck$LassoCheckResult]: Loop: 202#L28-3 assume !!(rangesum_~i~1 < 5); 199#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 200#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 202#L28-3 [2021-10-21 19:06:50,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:50,680 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-10-21 19:06:50,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:50,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566000980] [2021-10-21 19:06:50,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:50,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:50,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:50,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:50,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566000980] [2021-10-21 19:06:50,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566000980] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:50,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:06:50,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:06:50,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876226932] [2021-10-21 19:06:50,731 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:06:50,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:50,731 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 1 times [2021-10-21 19:06:50,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:50,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476781256] [2021-10-21 19:06:50,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:50,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:50,740 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:50,748 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:50,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:50,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:06:50,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:06:50,806 INFO L87 Difference]: Start difference. First operand 22 states and 32 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:50,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:50,844 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2021-10-21 19:06:50,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:06:50,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 32 transitions. [2021-10-21 19:06:50,847 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:50,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 32 transitions. [2021-10-21 19:06:50,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-21 19:06:50,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-21 19:06:50,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 32 transitions. [2021-10-21 19:06:50,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:06:50,849 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2021-10-21 19:06:50,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 32 transitions. [2021-10-21 19:06:50,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-10-21 19:06:50,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:50,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 31 transitions. [2021-10-21 19:06:50,852 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2021-10-21 19:06:50,852 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2021-10-21 19:06:50,852 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:06:50,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 31 transitions. [2021-10-21 19:06:50,854 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:50,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:50,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:50,854 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:06:50,855 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:06:50,855 INFO L791 eck$LassoCheckResult]: Stem: 243#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 244#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 255#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 256#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 257#L17-3 assume !(init_nondet_~i~0 < 5); 250#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 251#L28-3 [2021-10-21 19:06:50,855 INFO L793 eck$LassoCheckResult]: Loop: 251#L28-3 assume !!(rangesum_~i~1 < 5); 252#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 253#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 251#L28-3 [2021-10-21 19:06:50,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:50,856 INFO L82 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2021-10-21 19:06:50,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:50,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250447217] [2021-10-21 19:06:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:50,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:50,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:50,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:50,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250447217] [2021-10-21 19:06:50,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250447217] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:50,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735845544] [2021-10-21 19:06:50,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:50,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:50,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:50,940 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:50,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-21 19:06:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:50,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:06:50,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:51,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:51,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735845544] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:51,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:51,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-21 19:06:51,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683442087] [2021-10-21 19:06:51,017 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:06:51,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:51,019 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 2 times [2021-10-21 19:06:51,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:51,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587295996] [2021-10-21 19:06:51,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:51,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:51,026 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:51,034 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:51,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:51,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:06:51,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:06:51,095 INFO L87 Difference]: Start difference. First operand 22 states and 31 transitions. cyclomatic complexity: 14 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:51,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:51,115 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2021-10-21 19:06:51,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:06:51,116 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 34 transitions. [2021-10-21 19:06:51,118 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:51,119 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 34 transitions. [2021-10-21 19:06:51,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-21 19:06:51,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-21 19:06:51,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2021-10-21 19:06:51,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:06:51,120 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-10-21 19:06:51,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2021-10-21 19:06:51,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2021-10-21 19:06:51,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:51,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2021-10-21 19:06:51,123 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-10-21 19:06:51,124 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-10-21 19:06:51,124 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:06:51,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2021-10-21 19:06:51,125 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:51,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:51,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:51,126 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-21 19:06:51,126 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:06:51,126 INFO L791 eck$LassoCheckResult]: Stem: 313#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 314#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 325#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 326#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 327#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 328#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 336#L17-3 assume !(init_nondet_~i~0 < 5); 320#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 321#L28-3 [2021-10-21 19:06:51,126 INFO L793 eck$LassoCheckResult]: Loop: 321#L28-3 assume !!(rangesum_~i~1 < 5); 322#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 323#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 321#L28-3 [2021-10-21 19:06:51,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:51,127 INFO L82 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2021-10-21 19:06:51,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:51,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222238746] [2021-10-21 19:06:51,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:51,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:51,172 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:51,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:51,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222238746] [2021-10-21 19:06:51,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222238746] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:51,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608758278] [2021-10-21 19:06:51,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:06:51,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:51,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:51,198 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:51,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-21 19:06:51,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:06:51,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:51,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:06:51,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:51,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:51,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608758278] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:51,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:51,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-21 19:06:51,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679645503] [2021-10-21 19:06:51,313 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:06:51,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:51,314 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 3 times [2021-10-21 19:06:51,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:51,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708353665] [2021-10-21 19:06:51,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:51,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:51,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:51,342 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:51,351 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:51,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:51,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:06:51,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:06:51,425 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 14 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:51,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:51,463 INFO L93 Difference]: Finished difference Result 27 states and 36 transitions. [2021-10-21 19:06:51,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:06:51,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2021-10-21 19:06:51,468 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:51,472 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 36 transitions. [2021-10-21 19:06:51,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-21 19:06:51,475 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-21 19:06:51,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2021-10-21 19:06:51,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:06:51,477 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-10-21 19:06:51,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2021-10-21 19:06:51,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-10-21 19:06:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:51,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2021-10-21 19:06:51,484 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2021-10-21 19:06:51,484 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2021-10-21 19:06:51,484 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:06:51,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2021-10-21 19:06:51,485 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:51,486 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:51,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:51,489 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1] [2021-10-21 19:06:51,489 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:06:51,489 INFO L791 eck$LassoCheckResult]: Stem: 394#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 395#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 407#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 408#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 409#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 410#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 419#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 418#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 417#L17-3 assume !(init_nondet_~i~0 < 5); 401#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 402#L28-3 [2021-10-21 19:06:51,489 INFO L793 eck$LassoCheckResult]: Loop: 402#L28-3 assume !!(rangesum_~i~1 < 5); 403#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 404#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 402#L28-3 [2021-10-21 19:06:51,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:51,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1489134225, now seen corresponding path program 3 times [2021-10-21 19:06:51,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:51,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086651678] [2021-10-21 19:06:51,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:51,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:51,573 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:51,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:51,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086651678] [2021-10-21 19:06:51,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086651678] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:51,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080852787] [2021-10-21 19:06:51,576 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:06:51,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:51,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:51,577 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:51,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-21 19:06:51,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-21 19:06:51,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:51,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:06:51,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:51,693 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:51,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080852787] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:51,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:51,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-21 19:06:51,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776114112] [2021-10-21 19:06:51,695 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:06:51,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:51,696 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 4 times [2021-10-21 19:06:51,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:51,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70369878] [2021-10-21 19:06:51,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:51,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:51,719 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:51,727 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:51,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:51,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:06:51,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:06:51,808 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. cyclomatic complexity: 14 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:51,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:51,839 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2021-10-21 19:06:51,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:06:51,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2021-10-21 19:06:51,841 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:51,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 38 transitions. [2021-10-21 19:06:51,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-21 19:06:51,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-21 19:06:51,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2021-10-21 19:06:51,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:06:51,845 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2021-10-21 19:06:51,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2021-10-21 19:06:51,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2021-10-21 19:06:51,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 27 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:51,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2021-10-21 19:06:51,858 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-21 19:06:51,858 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-21 19:06:51,858 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 19:06:51,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 37 transitions. [2021-10-21 19:06:51,859 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:51,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:51,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:51,860 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2021-10-21 19:06:51,860 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:06:51,860 INFO L791 eck$LassoCheckResult]: Stem: 486#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 487#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 498#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 499#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 500#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 501#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 506#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 513#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 512#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 511#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 510#L17-3 assume !(init_nondet_~i~0 < 5); 493#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 494#L28-3 [2021-10-21 19:06:51,860 INFO L793 eck$LassoCheckResult]: Loop: 494#L28-3 assume !!(rangesum_~i~1 < 5); 495#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 496#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 494#L28-3 [2021-10-21 19:06:51,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:51,861 INFO L82 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 4 times [2021-10-21 19:06:51,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:51,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063338563] [2021-10-21 19:06:51,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:51,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:51,939 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:51,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:51,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063338563] [2021-10-21 19:06:51,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063338563] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:51,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669410595] [2021-10-21 19:06:51,941 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:06:51,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:51,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:51,943 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:51,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-21 19:06:52,009 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:06:52,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:52,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:06:52,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:52,065 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:52,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669410595] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:52,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:52,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-21 19:06:52,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697211326] [2021-10-21 19:06:52,067 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:06:52,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:52,067 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 5 times [2021-10-21 19:06:52,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:52,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857538344] [2021-10-21 19:06:52,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:52,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,076 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,089 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:52,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:52,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:06:52,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:06:52,150 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. cyclomatic complexity: 14 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:52,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:52,177 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2021-10-21 19:06:52,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:06:52,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2021-10-21 19:06:52,181 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:52,182 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 39 transitions. [2021-10-21 19:06:52,182 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-21 19:06:52,182 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-21 19:06:52,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 39 transitions. [2021-10-21 19:06:52,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:06:52,183 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-10-21 19:06:52,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 39 transitions. [2021-10-21 19:06:52,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-21 19:06:52,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3) internal successors, (39), 29 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:52,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-10-21 19:06:52,190 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-10-21 19:06:52,190 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-10-21 19:06:52,190 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 19:06:52,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2021-10-21 19:06:52,190 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:52,191 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:52,191 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:52,191 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2021-10-21 19:06:52,192 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:06:52,192 INFO L791 eck$LassoCheckResult]: Stem: 588#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 589#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 601#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 602#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 603#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 604#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 617#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 616#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 615#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 614#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 613#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 612#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 611#L17-3 assume !(init_nondet_~i~0 < 5); 595#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 596#L28-3 [2021-10-21 19:06:52,192 INFO L793 eck$LassoCheckResult]: Loop: 596#L28-3 assume !!(rangesum_~i~1 < 5); 597#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 598#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 596#L28-3 [2021-10-21 19:06:52,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:52,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 5 times [2021-10-21 19:06:52,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:52,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138001084] [2021-10-21 19:06:52,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:52,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,227 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,268 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:52,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:52,268 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 6 times [2021-10-21 19:06:52,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:52,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266068564] [2021-10-21 19:06:52,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:52,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,273 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,277 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:52,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:52,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1638582855, now seen corresponding path program 1 times [2021-10-21 19:06:52,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:52,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106044898] [2021-10-21 19:06:52,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:52,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-21 19:06:52,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:52,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106044898] [2021-10-21 19:06:52,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106044898] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:52,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:06:52,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:06:52,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676405528] [2021-10-21 19:06:52,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:52,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:06:52,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:06:52,366 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:52,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:52,401 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-10-21 19:06:52,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:06:52,401 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 48 transitions. [2021-10-21 19:06:52,402 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:52,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 48 transitions. [2021-10-21 19:06:52,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-21 19:06:52,403 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-21 19:06:52,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2021-10-21 19:06:52,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:06:52,404 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2021-10-21 19:06:52,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2021-10-21 19:06:52,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2021-10-21 19:06:52,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.25) internal successors, (45), 35 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:52,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2021-10-21 19:06:52,407 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-10-21 19:06:52,407 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-10-21 19:06:52,407 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 19:06:52,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 45 transitions. [2021-10-21 19:06:52,408 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:52,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:52,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:52,409 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:52,409 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:06:52,409 INFO L791 eck$LassoCheckResult]: Stem: 665#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 666#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 679#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 680#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 681#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 682#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 699#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 698#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 697#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 696#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 693#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 692#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 691#L17-3 assume !(init_nondet_~i~0 < 5); 673#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 674#L28-3 assume !!(rangesum_~i~1 < 5); 671#L29 assume !(rangesum_~i~1 > 2); 672#L28-2 [2021-10-21 19:06:52,409 INFO L793 eck$LassoCheckResult]: Loop: 672#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 675#L28-3 assume !!(rangesum_~i~1 < 5); 695#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 672#L28-2 [2021-10-21 19:06:52,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:52,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1715425498, now seen corresponding path program 1 times [2021-10-21 19:06:52,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:52,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753062747] [2021-10-21 19:06:52,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:52,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,422 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,438 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:52,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:52,439 INFO L82 PathProgramCache]: Analyzing trace with hash 60353, now seen corresponding path program 7 times [2021-10-21 19:06:52,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:52,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056414860] [2021-10-21 19:06:52,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:52,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,443 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,447 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:52,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:52,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1574813624, now seen corresponding path program 1 times [2021-10-21 19:06:52,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:52,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959955595] [2021-10-21 19:06:52,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:52,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:52,483 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-21 19:06:52,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:52,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959955595] [2021-10-21 19:06:52,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959955595] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:52,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121926702] [2021-10-21 19:06:52,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:52,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:52,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:52,486 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:52,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-21 19:06:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:52,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:06:52,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:52,633 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-21 19:06:52,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121926702] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:52,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:52,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-21 19:06:52,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918829638] [2021-10-21 19:06:52,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:52,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:06:52,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:06:52,701 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. cyclomatic complexity: 14 Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:52,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:52,764 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2021-10-21 19:06:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:06:52,765 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 57 transitions. [2021-10-21 19:06:52,766 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:52,767 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 57 transitions. [2021-10-21 19:06:52,767 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2021-10-21 19:06:52,767 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2021-10-21 19:06:52,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 57 transitions. [2021-10-21 19:06:52,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:06:52,767 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 57 transitions. [2021-10-21 19:06:52,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 57 transitions. [2021-10-21 19:06:52,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2021-10-21 19:06:52,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.2) internal successors, (54), 44 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:52,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2021-10-21 19:06:52,771 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 54 transitions. [2021-10-21 19:06:52,771 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 54 transitions. [2021-10-21 19:06:52,771 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-21 19:06:52,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 54 transitions. [2021-10-21 19:06:52,772 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:52,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:52,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:52,773 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 2, 2, 1, 1, 1, 1, 1] [2021-10-21 19:06:52,773 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:06:52,773 INFO L791 eck$LassoCheckResult]: Stem: 813#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 814#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 826#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 827#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 828#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 829#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 852#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 851#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 850#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 849#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 844#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 843#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 842#L17-3 assume !(init_nondet_~i~0 < 5); 819#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 820#L28-3 assume !!(rangesum_~i~1 < 5); 853#L29 assume !(rangesum_~i~1 > 2); 823#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 824#L28-3 assume !!(rangesum_~i~1 < 5); 821#L29 assume !(rangesum_~i~1 > 2); 822#L28-2 [2021-10-21 19:06:52,774 INFO L793 eck$LassoCheckResult]: Loop: 822#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 847#L28-3 assume !!(rangesum_~i~1 < 5); 848#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 822#L28-2 [2021-10-21 19:06:52,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:52,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1574813622, now seen corresponding path program 1 times [2021-10-21 19:06:52,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:52,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875272523] [2021-10-21 19:06:52,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:52,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,786 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,801 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:52,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:52,802 INFO L82 PathProgramCache]: Analyzing trace with hash 60353, now seen corresponding path program 8 times [2021-10-21 19:06:52,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:52,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398701426] [2021-10-21 19:06:52,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:52,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,806 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:52,810 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:52,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:52,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1344808232, now seen corresponding path program 2 times [2021-10-21 19:06:52,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:52,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474017479] [2021-10-21 19:06:52,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:52,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:52,877 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-21 19:06:52,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:52,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474017479] [2021-10-21 19:06:52,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474017479] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:52,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692498132] [2021-10-21 19:06:52,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:06:52,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:52,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:52,885 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:52,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-21 19:06:52,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:06:52,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:52,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:06:52,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:53,039 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-21 19:06:53,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692498132] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:53,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:53,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-21 19:06:53,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042108251] [2021-10-21 19:06:53,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:53,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:06:53,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:06:53,103 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. cyclomatic complexity: 14 Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:53,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:53,167 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2021-10-21 19:06:53,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:06:53,167 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 66 transitions. [2021-10-21 19:06:53,168 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2021-10-21 19:06:53,169 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 57 states and 66 transitions. [2021-10-21 19:06:53,169 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2021-10-21 19:06:53,169 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2021-10-21 19:06:53,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 66 transitions. [2021-10-21 19:06:53,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:06:53,170 INFO L681 BuchiCegarLoop]: Abstraction has 57 states and 66 transitions. [2021-10-21 19:06:53,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 66 transitions. [2021-10-21 19:06:53,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2021-10-21 19:06:53,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 53 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:53,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2021-10-21 19:06:53,175 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 63 transitions. [2021-10-21 19:06:53,175 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 63 transitions. [2021-10-21 19:06:53,175 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-21 19:06:53,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 63 transitions. [2021-10-21 19:06:53,176 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:53,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:53,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:53,177 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 3, 3, 2, 1, 1, 1, 1] [2021-10-21 19:06:53,177 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:06:53,178 INFO L791 eck$LassoCheckResult]: Stem: 989#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 990#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 1002#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1003#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1004#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1005#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1029#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1028#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1027#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1026#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1025#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1019#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1018#L17-3 assume !(init_nondet_~i~0 < 5); 995#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 996#L28-3 assume !!(rangesum_~i~1 < 5); 997#L29 assume !(rangesum_~i~1 > 2); 998#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 999#L28-3 assume !!(rangesum_~i~1 < 5); 1037#L29 assume !(rangesum_~i~1 > 2); 1036#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1035#L28-3 assume !!(rangesum_~i~1 < 5); 1033#L29 assume !(rangesum_~i~1 > 2); 1024#L28-2 [2021-10-21 19:06:53,178 INFO L793 eck$LassoCheckResult]: Loop: 1024#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1022#L28-3 assume !!(rangesum_~i~1 < 5); 1023#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 1024#L28-2 [2021-10-21 19:06:53,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:53,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1344808230, now seen corresponding path program 2 times [2021-10-21 19:06:53,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:53,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230631685] [2021-10-21 19:06:53,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:53,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:53,191 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:53,207 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:53,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:53,209 INFO L82 PathProgramCache]: Analyzing trace with hash 60353, now seen corresponding path program 9 times [2021-10-21 19:06:53,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:53,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680407299] [2021-10-21 19:06:53,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:53,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:53,226 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:53,232 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:53,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:53,233 INFO L82 PathProgramCache]: Analyzing trace with hash 272987720, now seen corresponding path program 3 times [2021-10-21 19:06:53,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:53,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867588517] [2021-10-21 19:06:53,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:53,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:53,259 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:53,294 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:54,938 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:06:54,938 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:06:54,938 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:06:54,938 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:06:54,938 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:06:54,938 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:54,938 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:06:54,939 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:06:54,939 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration10_Lasso [2021-10-21 19:06:54,939 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:06:54,939 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:06:54,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:54,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:55,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:55,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:55,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:55,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:55,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:55,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:55,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:55,644 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:06:55,644 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:06:55,644 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:55,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:55,646 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:55,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:06:55,652 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:55,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:55,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:55,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:55,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:55,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:55,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:55,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:55,664 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:55,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:55,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:55,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:55,688 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:55,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:55,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:55,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:55,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:55,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:55,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:55,715 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:55,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:55,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:06:55,725 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:55,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:55,758 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:55,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:55,759 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:55,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:55,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:55,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:55,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:55,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:55,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:55,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:55,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:55,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:06:55,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:55,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:55,813 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:55,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:55,814 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:55,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:06:55,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:55,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:55,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:55,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:55,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:55,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:55,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:55,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:55,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:55,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:55,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:55,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:55,857 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:55,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:06:55,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:55,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:55,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:55,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:55,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:55,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:55,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:55,869 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:55,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:55,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:55,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:55,890 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:55,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:06:55,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:55,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:55,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:55,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:55,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:55,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:55,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:55,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:55,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:55,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:55,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:55,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:55,929 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:55,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:06:55,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:55,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:55,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:55,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:55,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:55,942 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:55,942 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:55,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:55,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:55,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:55,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:55,970 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:55,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:06:55,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:55,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:55,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:55,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:55,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:55,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:55,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:55,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:55,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:55,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:55,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,000 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:06:56,001 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:56,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,010 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:56,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:56,031 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:56,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,066 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:56,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:56,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:56,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:06:56,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:56,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,129 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,142 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:56,142 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:56,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 19:06:56,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:56,183 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,184 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 19:06:56,186 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:56,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:56,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-21 19:06:56,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,219 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 19:06:56,221 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 [2021-10-21 19:06:56,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:56,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:56,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:56,230 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-21 19:06:56,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,251 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 19:06:56,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:56,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:56,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:56,274 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:56,293 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,294 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 19:06:56,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:56,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:56,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:56,305 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-21 19:06:56,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,327 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 19:06:56,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:56,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,335 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:56,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:56,336 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:56,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,357 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 19:06:56,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,368 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:56,368 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:56,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-21 19:06:56,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,435 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 19:06:56,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,446 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:56,446 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:56,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:56,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,499 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,516 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:56,516 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:56,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 19:06:56,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:56,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,565 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 19:06:56,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,583 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:56,583 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:56,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:56,637 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,638 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 19:06:56,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:56,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:56,672 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:56,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,695 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 19:06:56,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:56,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:56,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:06:56,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-21 19:06:56,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,739 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:56,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:56,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:56,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:56,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:56,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-21 19:06:56,763 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:06:56,763 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:06:56,792 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:06:56,838 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2021-10-21 19:06:56,838 INFO L444 ModelExtractionUtils]: 18 out of 34 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-10-21 19:06:56,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:56,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:56,840 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:56,845 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:06:56,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-21 19:06:56,867 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:06:56,867 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:06:56,867 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_rangesum_~i~1) = -2*ULTIMATE.start_rangesum_~i~1 + 7 Supporting invariants [] [2021-10-21 19:06:56,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:56,941 INFO L297 tatePredicateManager]: 15 out of 15 supporting invariants were superfluous and have been removed [2021-10-21 19:06:56,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:56,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:06:56,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:57,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:06:57,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:57,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:57,068 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-21 19:06:57,069 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 54 states and 63 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:57,107 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 54 states and 63 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 73 transitions. Complement of second has 7 states. [2021-10-21 19:06:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:06:57,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:57,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-10-21 19:06:57,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 22 letters. Loop has 3 letters. [2021-10-21 19:06:57,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:06:57,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 25 letters. Loop has 3 letters. [2021-10-21 19:06:57,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:06:57,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 22 letters. Loop has 6 letters. [2021-10-21 19:06:57,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:06:57,111 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 73 transitions. [2021-10-21 19:06:57,112 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:06:57,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 56 states and 67 transitions. [2021-10-21 19:06:57,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-10-21 19:06:57,113 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2021-10-21 19:06:57,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 67 transitions. [2021-10-21 19:06:57,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:06:57,114 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 67 transitions. [2021-10-21 19:06:57,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 67 transitions. [2021-10-21 19:06:57,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-10-21 19:06:57,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 55 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:57,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2021-10-21 19:06:57,118 INFO L704 BuchiCegarLoop]: Abstraction has 56 states and 67 transitions. [2021-10-21 19:06:57,118 INFO L587 BuchiCegarLoop]: Abstraction has 56 states and 67 transitions. [2021-10-21 19:06:57,118 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-21 19:06:57,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 67 transitions. [2021-10-21 19:06:57,119 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:06:57,119 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:57,119 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:57,120 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:57,120 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:06:57,120 INFO L791 eck$LassoCheckResult]: Stem: 1264#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 1265#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 1280#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1281#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1282#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1283#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1309#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1307#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1306#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1304#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1302#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1298#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1297#L17-3 assume !(init_nondet_~i~0 < 5); 1270#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 1271#L28-3 assume !!(rangesum_~i~1 < 5); 1272#L29 assume !(rangesum_~i~1 > 2); 1273#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1276#L28-3 assume !!(rangesum_~i~1 < 5); 1274#L29 assume !(rangesum_~i~1 > 2); 1275#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1305#L28-3 assume !!(rangesum_~i~1 < 5); 1303#L29 assume !(rangesum_~i~1 > 2); 1301#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1291#L28-3 assume !(rangesum_~i~1 < 5); 1292#L28-4 assume !(0 != rangesum_~cnt~0);rangesum_#res := 0; 1285#L37 main_#t~ret7 := rangesum_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 1286#L28-8 assume !!(rangesum_~i~1 < 5); 1312#L29-2 assume !(rangesum_~i~1 > 2); 1284#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1268#L28-8 assume !!(rangesum_~i~1 < 5); 1269#L29-2 assume !(rangesum_~i~1 > 2); 1296#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1311#L28-8 assume !!(rangesum_~i~1 < 5); 1310#L29-2 assume !(rangesum_~i~1 > 2); 1308#L28-7 [2021-10-21 19:06:57,121 INFO L793 eck$LassoCheckResult]: Loop: 1308#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1299#L28-8 assume !!(rangesum_~i~1 < 5); 1300#L29-2 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 1308#L28-7 [2021-10-21 19:06:57,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:57,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1909073688, now seen corresponding path program 1 times [2021-10-21 19:06:57,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:57,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882582014] [2021-10-21 19:06:57,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:57,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:57,178 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-10-21 19:06:57,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:57,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882582014] [2021-10-21 19:06:57,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882582014] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:57,179 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:06:57,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:06:57,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277031483] [2021-10-21 19:06:57,179 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:06:57,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:57,180 INFO L82 PathProgramCache]: Analyzing trace with hash 85178, now seen corresponding path program 1 times [2021-10-21 19:06:57,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:57,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204009322] [2021-10-21 19:06:57,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:57,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:57,185 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:57,190 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:57,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:57,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:57,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:06:57,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:06:57,244 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:57,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:57,295 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2021-10-21 19:06:57,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:06:57,296 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 86 transitions. [2021-10-21 19:06:57,296 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 16 [2021-10-21 19:06:57,297 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 69 states and 82 transitions. [2021-10-21 19:06:57,298 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2021-10-21 19:06:57,298 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2021-10-21 19:06:57,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 82 transitions. [2021-10-21 19:06:57,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:06:57,298 INFO L681 BuchiCegarLoop]: Abstraction has 69 states and 82 transitions. [2021-10-21 19:06:57,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 82 transitions. [2021-10-21 19:06:57,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2021-10-21 19:06:57,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 57 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:57,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2021-10-21 19:06:57,311 INFO L704 BuchiCegarLoop]: Abstraction has 58 states and 67 transitions. [2021-10-21 19:06:57,312 INFO L587 BuchiCegarLoop]: Abstraction has 58 states and 67 transitions. [2021-10-21 19:06:57,312 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-21 19:06:57,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 67 transitions. [2021-10-21 19:06:57,312 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-10-21 19:06:57,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:57,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:57,314 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:57,314 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:06:57,314 INFO L791 eck$LassoCheckResult]: Stem: 1398#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 1399#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 1414#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1415#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1416#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1417#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1442#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1441#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1440#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1439#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1438#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1433#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1432#L17-3 assume !(init_nondet_~i~0 < 5); 1404#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 1405#L28-3 assume !!(rangesum_~i~1 < 5); 1406#L29 assume !(rangesum_~i~1 > 2); 1407#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1410#L28-3 assume !!(rangesum_~i~1 < 5); 1450#L29 assume !(rangesum_~i~1 > 2); 1411#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1412#L28-3 assume !!(rangesum_~i~1 < 5); 1408#L29 assume !(rangesum_~i~1 > 2); 1409#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1444#L28-3 assume !!(rangesum_~i~1 < 5); 1443#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 1434#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1426#L28-3 assume !(rangesum_~i~1 < 5); 1427#L28-4 assume !(0 != rangesum_~cnt~0);rangesum_#res := 0; 1419#L37 main_#t~ret7 := rangesum_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 1420#L28-8 assume !!(rangesum_~i~1 < 5); 1431#L29-2 assume !(rangesum_~i~1 > 2); 1418#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1402#L28-8 assume !!(rangesum_~i~1 < 5); 1403#L29-2 assume !(rangesum_~i~1 > 2); 1449#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1448#L28-8 assume !!(rangesum_~i~1 < 5); 1447#L29-2 assume !(rangesum_~i~1 > 2); 1445#L28-7 [2021-10-21 19:06:57,315 INFO L793 eck$LassoCheckResult]: Loop: 1445#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1446#L28-8 assume !!(rangesum_~i~1 < 5); 1436#L29-2 assume !(rangesum_~i~1 > 2); 1445#L28-7 [2021-10-21 19:06:57,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:57,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1744047494, now seen corresponding path program 1 times [2021-10-21 19:06:57,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:57,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161177319] [2021-10-21 19:06:57,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:57,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:57,352 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-21 19:06:57,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:57,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161177319] [2021-10-21 19:06:57,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161177319] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:57,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404219416] [2021-10-21 19:06:57,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:57,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:57,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:57,356 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:57,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-21 19:06:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:57,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:06:57,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:57,544 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-21 19:06:57,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404219416] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:57,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:06:57,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-10-21 19:06:57,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852967250] [2021-10-21 19:06:57,545 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:06:57,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:57,547 INFO L82 PathProgramCache]: Analyzing trace with hash 85180, now seen corresponding path program 1 times [2021-10-21 19:06:57,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:57,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16608967] [2021-10-21 19:06:57,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:57,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:57,555 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:57,558 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:57,571 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:06:57,571 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:06:57,571 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:06:57,571 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:06:57,571 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:06:57,572 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:57,572 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:06:57,572 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:06:57,572 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration12_Loop [2021-10-21 19:06:57,572 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:06:57,572 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:06:57,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:57,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:57,590 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:06:57,590 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:06:57,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:57,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:57,593 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:57,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-21 19:06:57,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:06:57,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:06:57,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-21 19:06:57,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:57,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:57,621 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:57,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-21 19:06:57,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:06:57,623 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:06:57,697 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:06:57,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-21 19:06:57,702 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:06:57,702 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:06:57,702 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:06:57,702 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:06:57,703 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:06:57,703 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:57,703 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:06:57,703 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:06:57,703 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration12_Loop [2021-10-21 19:06:57,703 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:06:57,703 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:06:57,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:57,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:06:57,726 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:06:57,726 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:06:57,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:57,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:57,727 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:57,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-21 19:06:57,729 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:06:57,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:06:57,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:06:57,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:06:57,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:06:57,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:06:57,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:06:57,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:06:57,738 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:06:57,739 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:06:57,739 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:06:57,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:06:57,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:57,741 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:06:57,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-21 19:06:57,742 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:06:57,742 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:06:57,742 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:06:57,742 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_rangesum_~i~1) = -2*ULTIMATE.start_rangesum_~i~1 + 3 Supporting invariants [] [2021-10-21 19:06:57,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:57,763 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:06:57,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:57,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:06:57,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:57,925 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:06:57,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:57,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:57,944 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:06:57,945 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 67 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:57,974 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 67 transitions. cyclomatic complexity: 14. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 71 states and 83 transitions. Complement of second has 5 states. [2021-10-21 19:06:57,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:06:57,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:57,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2021-10-21 19:06:57,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 37 letters. Loop has 3 letters. [2021-10-21 19:06:57,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:06:57,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 40 letters. Loop has 3 letters. [2021-10-21 19:06:57,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:06:57,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 37 letters. Loop has 6 letters. [2021-10-21 19:06:57,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:06:57,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 83 transitions. [2021-10-21 19:06:57,977 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:06:57,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 62 states and 72 transitions. [2021-10-21 19:06:57,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-21 19:06:57,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-10-21 19:06:57,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 72 transitions. [2021-10-21 19:06:57,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:06:57,979 INFO L681 BuchiCegarLoop]: Abstraction has 62 states and 72 transitions. [2021-10-21 19:06:57,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 72 transitions. [2021-10-21 19:06:57,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2021-10-21 19:06:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 60 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:57,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2021-10-21 19:06:57,982 INFO L704 BuchiCegarLoop]: Abstraction has 61 states and 71 transitions. [2021-10-21 19:06:57,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:57,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:06:57,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:06:57,983 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:58,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:58,006 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2021-10-21 19:06:58,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:06:58,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 85 transitions. [2021-10-21 19:06:58,007 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:06:58,008 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 72 states and 85 transitions. [2021-10-21 19:06:58,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-10-21 19:06:58,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2021-10-21 19:06:58,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 85 transitions. [2021-10-21 19:06:58,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:06:58,009 INFO L681 BuchiCegarLoop]: Abstraction has 72 states and 85 transitions. [2021-10-21 19:06:58,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 85 transitions. [2021-10-21 19:06:58,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 61. [2021-10-21 19:06:58,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.1311475409836065) internal successors, (69), 60 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:58,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2021-10-21 19:06:58,012 INFO L704 BuchiCegarLoop]: Abstraction has 61 states and 69 transitions. [2021-10-21 19:06:58,012 INFO L587 BuchiCegarLoop]: Abstraction has 61 states and 69 transitions. [2021-10-21 19:06:58,012 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-21 19:06:58,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 69 transitions. [2021-10-21 19:06:58,013 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:06:58,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:58,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:58,014 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:58,014 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:06:58,015 INFO L791 eck$LassoCheckResult]: Stem: 1910#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 1911#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 1927#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1928#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1929#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1930#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1957#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1956#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1955#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1953#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1952#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 1949#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1948#L17-3 assume !(init_nondet_~i~0 < 5); 1918#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 1919#L28-3 assume !!(rangesum_~i~1 < 5); 1920#L29 assume !(rangesum_~i~1 > 2); 1921#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1924#L28-3 assume !!(rangesum_~i~1 < 5); 1958#L29 assume !(rangesum_~i~1 > 2); 1959#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1960#L28-3 assume !!(rangesum_~i~1 < 5); 1922#L29 assume !(rangesum_~i~1 > 2); 1923#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1925#L28-3 assume !!(rangesum_~i~1 < 5); 1942#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 1954#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1940#L28-3 assume !(rangesum_~i~1 < 5); 1941#L28-4 assume 0 != rangesum_~cnt~0;rangesum_#res := (if (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 <= 2147483647 then (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 else (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 - 4294967296); 1934#L37 main_#t~ret7 := rangesum_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 1935#L28-8 assume !!(rangesum_~i~1 < 5); 1946#L29-2 assume !(rangesum_~i~1 > 2); 1931#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1916#L28-8 assume !!(rangesum_~i~1 < 5); 1917#L29-2 assume !(rangesum_~i~1 > 2); 1947#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1966#L28-8 assume !!(rangesum_~i~1 < 5); 1962#L29-2 assume !(rangesum_~i~1 > 2); 1961#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1914#L28-8 assume !!(rangesum_~i~1 < 5); 1915#L29-2 [2021-10-21 19:06:58,015 INFO L793 eck$LassoCheckResult]: Loop: 1915#L29-2 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 1951#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1950#L28-8 assume !!(rangesum_~i~1 < 5); 1915#L29-2 [2021-10-21 19:06:58,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:58,015 INFO L82 PathProgramCache]: Analyzing trace with hash 734232641, now seen corresponding path program 1 times [2021-10-21 19:06:58,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:58,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207270361] [2021-10-21 19:06:58,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:58,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:58,026 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:06:58,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993079468] [2021-10-21 19:06:58,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:58,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:58,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:58,027 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:58,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-21 19:06:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:58,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:06:58,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:58,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-10-21 19:06:58,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:58,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207270361] [2021-10-21 19:06:58,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:06:58,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993079468] [2021-10-21 19:06:58,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993079468] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:58,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:06:58,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-21 19:06:58,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657165034] [2021-10-21 19:06:58,328 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:06:58,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:58,329 INFO L82 PathProgramCache]: Analyzing trace with hash 81548, now seen corresponding path program 2 times [2021-10-21 19:06:58,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:58,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736403805] [2021-10-21 19:06:58,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:58,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:58,333 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:58,336 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:58,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:58,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:06:58,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:06:58,394 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. cyclomatic complexity: 14 Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:58,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:58,481 INFO L93 Difference]: Finished difference Result 80 states and 91 transitions. [2021-10-21 19:06:58,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:06:58,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 91 transitions. [2021-10-21 19:06:58,482 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2021-10-21 19:06:58,483 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 78 states and 89 transitions. [2021-10-21 19:06:58,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-10-21 19:06:58,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2021-10-21 19:06:58,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 89 transitions. [2021-10-21 19:06:58,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:06:58,484 INFO L681 BuchiCegarLoop]: Abstraction has 78 states and 89 transitions. [2021-10-21 19:06:58,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 89 transitions. [2021-10-21 19:06:58,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 67. [2021-10-21 19:06:58,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 67 states have (on average 1.1343283582089552) internal successors, (76), 66 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:58,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 76 transitions. [2021-10-21 19:06:58,486 INFO L704 BuchiCegarLoop]: Abstraction has 67 states and 76 transitions. [2021-10-21 19:06:58,486 INFO L587 BuchiCegarLoop]: Abstraction has 67 states and 76 transitions. [2021-10-21 19:06:58,486 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-21 19:06:58,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 67 states and 76 transitions. [2021-10-21 19:06:58,487 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:06:58,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:58,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:58,488 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:58,489 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:06:58,489 INFO L791 eck$LassoCheckResult]: Stem: 2175#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 2176#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 2194#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 2195#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2196#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 2197#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2229#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 2227#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2225#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 2223#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2219#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 2215#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2214#L17-3 assume !(init_nondet_~i~0 < 5); 2183#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 2184#L28-3 assume !!(rangesum_~i~1 < 5); 2185#L29 assume !(rangesum_~i~1 > 2); 2186#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2189#L28-3 assume !!(rangesum_~i~1 < 5); 2208#L29 assume !(rangesum_~i~1 > 2); 2190#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2191#L28-3 assume !!(rangesum_~i~1 < 5); 2187#L29 assume !(rangesum_~i~1 > 2); 2188#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2235#L28-3 assume !!(rangesum_~i~1 < 5); 2234#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 2222#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2224#L28-3 assume !!(rangesum_~i~1 < 5); 2220#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 2221#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2206#L28-3 assume !(rangesum_~i~1 < 5); 2207#L28-4 assume 0 != rangesum_~cnt~0;rangesum_#res := (if (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 <= 2147483647 then (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 else (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 - 4294967296); 2201#L37 main_#t~ret7 := rangesum_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 2179#L28-8 assume !!(rangesum_~i~1 < 5); 2180#L29-2 assume !(rangesum_~i~1 > 2); 2198#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2199#L28-8 assume !!(rangesum_~i~1 < 5); 2212#L29-2 assume !(rangesum_~i~1 > 2); 2213#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2236#L28-8 assume !!(rangesum_~i~1 < 5); 2233#L29-2 assume !(rangesum_~i~1 > 2); 2232#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2231#L28-8 assume !!(rangesum_~i~1 < 5); 2230#L29-2 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 2228#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2226#L28-8 assume !!(rangesum_~i~1 < 5); 2217#L29-2 [2021-10-21 19:06:58,489 INFO L793 eck$LassoCheckResult]: Loop: 2217#L29-2 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 2218#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2216#L28-8 assume !!(rangesum_~i~1 < 5); 2217#L29-2 [2021-10-21 19:06:58,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:58,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1040814406, now seen corresponding path program 1 times [2021-10-21 19:06:58,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:58,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339613057] [2021-10-21 19:06:58,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:58,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:58,500 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:06:58,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [38222404] [2021-10-21 19:06:58,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:58,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:58,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:58,501 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:58,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-21 19:06:58,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:58,645 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:58,707 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:58,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:58,708 INFO L82 PathProgramCache]: Analyzing trace with hash 81548, now seen corresponding path program 3 times [2021-10-21 19:06:58,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:58,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624437208] [2021-10-21 19:06:58,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:58,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:58,711 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:58,714 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:58,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:58,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1533007565, now seen corresponding path program 2 times [2021-10-21 19:06:58,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:58,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755936936] [2021-10-21 19:06:58,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:58,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:58,724 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:06:58,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766005326] [2021-10-21 19:06:58,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:06:58,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:58,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:58,727 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:58,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-21 19:06:58,870 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:06:58,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:58,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:06:58,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:58,995 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-21 19:06:58,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:58,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755936936] [2021-10-21 19:06:58,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:06:58,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766005326] [2021-10-21 19:06:58,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766005326] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:06:58,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:06:58,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:06:58,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405990538] [2021-10-21 19:06:59,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:59,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:06:59,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:06:59,081 INFO L87 Difference]: Start difference. First operand 67 states and 76 transitions. cyclomatic complexity: 15 Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:59,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:59,132 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2021-10-21 19:06:59,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:06:59,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 82 transitions. [2021-10-21 19:06:59,134 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-21 19:06:59,134 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 66 states and 70 transitions. [2021-10-21 19:06:59,134 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-10-21 19:06:59,135 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-10-21 19:06:59,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 70 transitions. [2021-10-21 19:06:59,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:06:59,135 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 70 transitions. [2021-10-21 19:06:59,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 70 transitions. [2021-10-21 19:06:59,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 56. [2021-10-21 19:06:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.0714285714285714) internal successors, (60), 55 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:59,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-10-21 19:06:59,138 INFO L704 BuchiCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-10-21 19:06:59,138 INFO L587 BuchiCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-10-21 19:06:59,138 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-21 19:06:59,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 60 transitions. [2021-10-21 19:06:59,138 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-10-21 19:06:59,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:06:59,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:06:59,139 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:06:59,139 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:06:59,140 INFO L791 eck$LassoCheckResult]: Stem: 2471#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 2472#L-1 havoc main_#res;havoc main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);init_nondet_#in~x.base, init_nondet_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc init_nondet_#t~nondet4, init_nondet_#t~post3, init_nondet_~x.base, init_nondet_~x.offset, init_nondet_~i~0;init_nondet_~x.base, init_nondet_~x.offset := init_nondet_#in~x.base, init_nondet_#in~x.offset;havoc init_nondet_~i~0;init_nondet_~i~0 := 0; 2491#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 2492#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2493#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 2494#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2521#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 2520#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2518#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 2516#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2514#L17-3 assume !!(init_nondet_~i~0 < 5);call write~int(init_nondet_#t~nondet4, init_nondet_~x.base, init_nondet_~x.offset + 4 * init_nondet_~i~0, 4);havoc init_nondet_#t~nondet4; 2506#L17-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2505#L17-3 assume !(init_nondet_~i~0 < 5); 2479#L15 havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 2480#L28-3 assume !!(rangesum_~i~1 < 5); 2481#L29 assume !(rangesum_~i~1 > 2); 2482#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2486#L28-3 assume !!(rangesum_~i~1 < 5); 2483#L29 assume !(rangesum_~i~1 > 2); 2484#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2487#L28-3 assume !!(rangesum_~i~1 < 5); 2526#L29 assume !(rangesum_~i~1 > 2); 2524#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2525#L28-3 assume !!(rangesum_~i~1 < 5); 2523#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 2522#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2499#L28-3 assume !!(rangesum_~i~1 < 5); 2500#L29 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 2510#L28-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2508#L28-3 assume !(rangesum_~i~1 < 5); 2503#L28-4 assume 0 != rangesum_~cnt~0;rangesum_#res := (if (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 <= 2147483647 then (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 else (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 - 4294967296); 2497#L37 main_#t~ret7 := rangesum_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);rangesum_#in~x.base, rangesum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc rangesum_#res;havoc rangesum_#t~mem6, rangesum_#t~post5, rangesum_~x.base, rangesum_~x.offset, rangesum_~i~1, rangesum_~ret~0, rangesum_~cnt~0;rangesum_~x.base, rangesum_~x.offset := rangesum_#in~x.base, rangesum_#in~x.offset;havoc rangesum_~i~1;havoc rangesum_~ret~0;rangesum_~ret~0 := 0;rangesum_~cnt~0 := 0;rangesum_~i~1 := 0; 2475#L28-8 assume !!(rangesum_~i~1 < 5); 2476#L29-2 assume !(rangesum_~i~1 > 2); 2488#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2489#L28-8 assume !!(rangesum_~i~1 < 5); 2504#L29-2 assume !(rangesum_~i~1 > 2); 2490#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2477#L28-8 assume !!(rangesum_~i~1 < 5); 2478#L29-2 assume !(rangesum_~i~1 > 2); 2519#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2517#L28-8 assume !!(rangesum_~i~1 < 5); 2515#L29-2 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 2513#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2512#L28-8 assume !!(rangesum_~i~1 < 5); 2511#L29-2 assume rangesum_~i~1 > 2;call rangesum_#t~mem6 := read~int(rangesum_~x.base, rangesum_~x.offset + 4 * rangesum_~i~1, 4);rangesum_~ret~0 := rangesum_~ret~0 + rangesum_#t~mem6;havoc rangesum_#t~mem6;rangesum_~cnt~0 := 1 + rangesum_~cnt~0; 2509#L28-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2507#L28-8 assume !(rangesum_~i~1 < 5); 2501#L28-9 assume 0 != rangesum_~cnt~0;rangesum_#res := (if (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 <= 2147483647 then (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 else (if rangesum_~ret~0 < 0 && 0 != rangesum_~ret~0 % rangesum_~cnt~0 then (if rangesum_~cnt~0 < 0 then rangesum_~ret~0 / rangesum_~cnt~0 - 1 else 1 + rangesum_~ret~0 / rangesum_~cnt~0) else rangesum_~ret~0 / rangesum_~cnt~0) % 4294967296 - 4294967296); 2495#L37-1 main_#t~ret10 := rangesum_#res;main_~ret2~0 := main_#t~ret10;havoc main_#t~ret10;call main_#t~mem11 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~2 := 0; 2496#L54-3 [2021-10-21 19:06:59,140 INFO L793 eck$LassoCheckResult]: Loop: 2496#L54-3 assume !!(main_~i~2 < 4);call main_#t~mem13 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~2), 4);call write~int(main_#t~mem13, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~2, 4);havoc main_#t~mem13; 2498#L54-2 main_#t~post12 := main_~i~2;main_~i~2 := 1 + main_#t~post12;havoc main_#t~post12; 2496#L54-3 [2021-10-21 19:06:59,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:59,141 INFO L82 PathProgramCache]: Analyzing trace with hash -46487371, now seen corresponding path program 1 times [2021-10-21 19:06:59,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:59,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650182491] [2021-10-21 19:06:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:59,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:59,153 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:06:59,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945594699] [2021-10-21 19:06:59,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:59,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:59,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:59,156 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:59,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-21 19:06:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:59,354 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:59,412 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:59,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:59,413 INFO L82 PathProgramCache]: Analyzing trace with hash 3331, now seen corresponding path program 1 times [2021-10-21 19:06:59,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:59,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110629715] [2021-10-21 19:06:59,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:59,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:59,419 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:59,424 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:06:59,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:59,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1724688201, now seen corresponding path program 1 times [2021-10-21 19:06:59,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:59,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687012540] [2021-10-21 19:06:59,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:59,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:59,438 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:06:59,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [636706773] [2021-10-21 19:06:59,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:59,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:59,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:59,441 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:59,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-21 19:06:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:59,624 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:06:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:06:59,695 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:07:24,970 WARN L207 SmtUtils]: Spent 25.21 s on a formula simplification. DAG size of input: 387 DAG size of output: 288 [2021-10-21 19:12:48,675 WARN L207 SmtUtils]: Spent 36.54 s on a formula simplification. DAG size of input: 232 DAG size of output: 228 [2021-10-21 19:12:48,681 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:12:48,681 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:12:48,681 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:12:48,681 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:12:48,681 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:12:48,681 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:12:48,681 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:12:48,682 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:12:48,682 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum05.i_Iteration15_Lasso [2021-10-21 19:12:48,682 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:12:48,682 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:12:48,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:12:48,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:12:48,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:12:48,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:12:48,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:12:48,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:12:48,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:12:48,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:12:48,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:12:50,782 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: MapEliminator tries to combine Int and (Array Int Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceSelectStoreTerm(MapEliminator.java:592) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceStoreTerms(MapEliminator.java:542) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:330) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-21 19:12:50,788 INFO L168 Benchmark]: Toolchain (without parser) took 363577.14 ms. Allocated memory was 92.3 MB in the beginning and 167.8 MB in the end (delta: 75.5 MB). Free memory was 50.5 MB in the beginning and 46.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 108.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:50,788 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 92.3 MB. Free memory is still 66.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:12:50,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.25 ms. Allocated memory is still 92.3 MB. Free memory was 50.3 MB in the beginning and 66.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:50,789 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.67 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 64.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:50,789 INFO L168 Benchmark]: Boogie Preprocessor took 38.63 ms. Allocated memory is still 92.3 MB. Free memory was 64.7 MB in the beginning and 63.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:50,790 INFO L168 Benchmark]: RCFGBuilder took 347.13 ms. Allocated memory is still 92.3 MB. Free memory was 63.2 MB in the beginning and 50.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:50,790 INFO L168 Benchmark]: BuchiAutomizer took 362849.49 ms. Allocated memory was 92.3 MB in the beginning and 167.8 MB in the end (delta: 75.5 MB). Free memory was 50.2 MB in the beginning and 46.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 110.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:50,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 92.3 MB. Free memory is still 66.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.25 ms. Allocated memory is still 92.3 MB. Free memory was 50.3 MB in the beginning and 66.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.67 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 64.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.63 ms. Allocated memory is still 92.3 MB. Free memory was 64.7 MB in the beginning and 63.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 347.13 ms. Allocated memory is still 92.3 MB. Free memory was 63.2 MB in the beginning and 50.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 362849.49 ms. Allocated memory was 92.3 MB in the beginning and 167.8 MB in the end (delta: 75.5 MB). Free memory was 50.2 MB in the beginning and 46.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 110.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: MapEliminator tries to combine Int and (Array Int Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-21 19:12:50,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:51,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:51,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:51,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2021-10-21 19:12:51,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:51,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2021-10-21 19:12:52,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-10-21 19:12:52,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-10-21 19:12:52,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-21 19:12:52,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-10-21 19:12:52,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-10-21 19:12:53,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-10-21 19:12:53,430 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forcibly destroying the process [2021-10-21 19:12:53,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d279f54a-b178-45c2-bd28-2d854202cbcf/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...