./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4dc91bf2fc8981aab63c1ee768384f1c8f580edfe4618d65089a78f799b6ddb8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:45:37,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:45:37,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:45:37,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:45:37,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:45:37,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:45:37,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:45:37,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:45:37,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:45:37,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:45:37,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:45:37,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:45:37,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:45:37,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:45:37,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:45:37,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:45:37,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:45:37,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:45:37,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:45:37,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:45:37,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:45:37,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:45:37,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:45:37,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:45:37,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:45:37,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:45:37,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:45:37,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:45:37,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:45:37,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:45:37,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:45:37,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:45:37,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:45:37,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:45:37,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:45:37,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:45:37,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:45:37,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:45:37,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:45:37,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:45:37,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:45:37,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 10:45:37,581 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:45:37,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:45:37,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:45:37,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:45:37,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:45:37,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:45:37,585 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:45:37,585 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 10:45:37,585 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 10:45:37,585 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 10:45:37,587 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 10:45:37,587 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 10:45:37,587 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 10:45:37,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:45:37,588 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:45:37,588 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 10:45:37,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:45:37,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:45:37,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:45:37,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 10:45:37,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 10:45:37,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 10:45:37,590 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:45:37,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:45:37,590 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 10:45:37,591 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:45:37,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 10:45:37,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:45:37,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:45:37,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:45:37,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:45:37,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:45:37,596 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 10:45:37,596 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_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc91bf2fc8981aab63c1ee768384f1c8f580edfe4618d65089a78f799b6ddb8 [2021-11-09 10:45:37,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:45:37,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:45:37,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:45:37,966 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:45:37,967 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:45:37,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/reducercommutativity/rangesum.i [2021-11-09 10:45:38,022 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/data/34a5402ed/41f668bef84345328102d291ef2dce79/FLAGb717944ad [2021-11-09 10:45:38,480 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:45:38,480 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/sv-benchmarks/c/reducercommutativity/rangesum.i [2021-11-09 10:45:38,486 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/data/34a5402ed/41f668bef84345328102d291ef2dce79/FLAGb717944ad [2021-11-09 10:45:38,876 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/data/34a5402ed/41f668bef84345328102d291ef2dce79 [2021-11-09 10:45:38,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:45:38,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:45:38,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:45:38,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:45:38,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:45:38,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:45:38" (1/1) ... [2021-11-09 10:45:38,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ce737f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:38, skipping insertion in model container [2021-11-09 10:45:38,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:45:38" (1/1) ... [2021-11-09 10:45:38,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:45:38,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:45:39,088 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_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/sv-benchmarks/c/reducercommutativity/rangesum.i[1544,1557] [2021-11-09 10:45:39,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:45:39,097 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:45:39,117 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_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/sv-benchmarks/c/reducercommutativity/rangesum.i[1544,1557] [2021-11-09 10:45:39,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:45:39,130 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:45:39,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:39 WrapperNode [2021-11-09 10:45:39,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:45:39,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:45:39,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:45:39,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:45:39,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:39" (1/1) ... [2021-11-09 10:45:39,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:39" (1/1) ... [2021-11-09 10:45:39,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:45:39,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:45:39,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:45:39,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:45:39,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:39" (1/1) ... [2021-11-09 10:45:39,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:39" (1/1) ... [2021-11-09 10:45:39,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:39" (1/1) ... [2021-11-09 10:45:39,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:39" (1/1) ... [2021-11-09 10:45:39,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:39" (1/1) ... [2021-11-09 10:45:39,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:39" (1/1) ... [2021-11-09 10:45:39,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:39" (1/1) ... [2021-11-09 10:45:39,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:45:39,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:45:39,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:45:39,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:45:39,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:39" (1/1) ... [2021-11-09 10:45:39,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:39,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:39,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:39,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 10:45:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:45:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:45:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 10:45:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:45:39,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:45:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 10:45:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 10:45:39,664 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:45:39,664 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-09 10:45:39,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:45:39 BoogieIcfgContainer [2021-11-09 10:45:39,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:45:39,667 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 10:45:39,668 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 10:45:39,671 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 10:45:39,672 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:45:39,672 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 10:45:38" (1/3) ... [2021-11-09 10:45:39,674 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c515f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:45:39, skipping insertion in model container [2021-11-09 10:45:39,674 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:45:39,674 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:45:39" (2/3) ... [2021-11-09 10:45:39,675 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c515f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:45:39, skipping insertion in model container [2021-11-09 10:45:39,675 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:45:39,675 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:45:39" (3/3) ... [2021-11-09 10:45:39,676 INFO L389 chiAutomizerObserver]: Analyzing ICFG rangesum.i [2021-11-09 10:45:39,719 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 10:45:39,719 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 10:45:39,719 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 10:45:39,719 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 10:45:39,720 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 10:45:39,720 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 10:45:39,720 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 10:45:39,720 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 10:45:39,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 30 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 29 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:39,753 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-11-09 10:45:39,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:45:39,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:45:39,759 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-09 10:45:39,760 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 10:45:39,760 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 10:45:39,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 30 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 29 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:39,764 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-11-09 10:45:39,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:45:39,764 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:45:39,765 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-09 10:45:39,765 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 10:45:39,772 INFO L791 eck$LassoCheckResult]: Stem: 18#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(11);~N~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 9#L44true assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 14#L18-3true [2021-11-09 10:45:39,772 INFO L793 eck$LassoCheckResult]: Loop: 14#L18-3true assume !!(init_nondet_~i~0 < ~N~0);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; 13#L18-2true init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 14#L18-3true [2021-11-09 10:45:39,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:39,780 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-09 10:45:39,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:39,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525092969] [2021-11-09 10:45:39,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:39,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:39,924 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:40,009 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:40,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:40,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1379, now seen corresponding path program 1 times [2021-11-09 10:45:40,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:40,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155029998] [2021-11-09 10:45:40,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:40,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:40,041 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:40,062 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:40,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:40,068 INFO L85 PathProgramCache]: Analyzing trace with hash 28693956, now seen corresponding path program 1 times [2021-11-09 10:45:40,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:40,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270465964] [2021-11-09 10:45:40,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:40,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:40,114 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:40,153 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:40,837 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 10:45:40,838 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 10:45:40,838 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 10:45:40,838 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 10:45:40,838 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 10:45:40,838 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:40,839 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 10:45:40,839 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 10:45:40,839 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration1_Lasso [2021-11-09 10:45:40,840 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 10:45:40,840 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 10:45:40,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:40,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:41,539 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 10:45:41,543 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 10:45:41,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:41,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:41,550 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:41,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-09 10:45:41,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:41,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:41,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:41,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:41,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:41,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:41,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:41,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:41,584 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:41,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:41,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:41,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:41,622 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:41,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-09 10:45:41,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:41,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:41,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:41,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:41,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:41,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:41,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:41,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:41,641 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:41,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:41,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:41,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:41,679 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:41,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-09 10:45:41,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:41,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:41,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:41,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:41,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:41,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:41,704 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:41,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:41,717 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:41,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-09 10:45:41,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:41,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:41,746 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:41,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:41,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:41,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:41,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:41,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:41,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:45:41,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:45:41,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-09 10:45:41,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:41,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:41,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:41,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:41,818 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:41,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-09 10:45:41,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:41,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:41,853 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:41,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:41,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:41,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:41,854 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:41,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:41,869 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:41,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:41,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:41,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:41,907 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:41,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-09 10:45:41,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:41,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:41,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:41,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:41,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:41,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:41,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:41,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:41,937 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:41,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:41,973 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:41,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:41,975 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:41,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-09 10:45:41,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:41,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:41,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:41,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:41,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:41,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:41,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:41,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:42,005 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:42,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,043 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-09 10:45:42,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,051 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:42,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:42,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:42,066 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:42,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,086 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-09 10:45:42,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:45:42,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:45:42,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:42,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,163 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:42,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:42,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:42,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-09 10:45:42,197 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:42,224 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,225 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-09 10:45:42,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:42,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:42,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:42,241 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-11-09 10:45:42,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,261 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-09 10:45:42,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,278 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:45:42,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:45:42,321 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:42,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,358 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:42,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:42,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:42,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-09 10:45:42,389 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:42,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,423 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,428 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-09 10:45:42,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:42,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:42,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:42,438 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:42,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,459 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-09 10:45:42,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:42,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,471 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:42,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:42,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-11-09 10:45:42,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,495 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-09 10:45:42,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:42,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:42,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:42,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:42,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,534 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-09 10:45:42,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:42,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:42,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:42,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:42,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,589 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-09 10:45:42,594 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:42,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:42,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:42,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:42,629 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,632 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-09 10:45:42,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:42,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:42,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:42,646 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:42,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,667 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-09 10:45:42,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,677 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:42,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,679 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:42,679 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:42,685 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:42,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:42,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,707 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-09 10:45:42,708 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:42,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:42,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:42,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:42,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:42,728 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:45:42,728 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:45:42,756 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 10:45:42,788 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-11-09 10:45:42,788 INFO L444 ModelExtractionUtils]: 15 out of 28 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-11-09 10:45:42,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:42,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:42,798 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:42,803 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 10:45:42,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-09 10:45:42,839 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-09 10:45:42,839 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 10:45:42,839 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_init_nondet_~i~0, ~N~0) = -1*ULTIMATE.start_init_nondet_~i~0 + 1*~N~0 Supporting invariants [] [2021-11-09 10:45:42,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:42,953 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-11-09 10:45:42,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:43,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:45:43,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:45:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:43,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 10:45:43,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:45:43,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:45:43,083 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 10:45:43,085 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 30 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 29 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:43,216 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 30 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 29 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 130 transitions. Complement of second has 7 states. [2021-11-09 10:45:43,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-09 10:45:43,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:43,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2021-11-09 10:45:43,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 89 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-09 10:45:43,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:45:43,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 89 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-09 10:45:43,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:45:43,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 89 transitions. Stem has 3 letters. Loop has 4 letters. [2021-11-09 10:45:43,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:45:43,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 130 transitions. [2021-11-09 10:45:43,246 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-09 10:45:43,254 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 23 states and 33 transitions. [2021-11-09 10:45:43,255 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-11-09 10:45:43,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-11-09 10:45:43,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 33 transitions. [2021-11-09 10:45:43,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:45:43,256 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 33 transitions. [2021-11-09 10:45:43,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 33 transitions. [2021-11-09 10:45:43,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-11-09 10:45:43,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.434782608695652) internal successors, (33), 22 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:43,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 33 transitions. [2021-11-09 10:45:43,282 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 33 transitions. [2021-11-09 10:45:43,283 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 33 transitions. [2021-11-09 10:45:43,283 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 10:45:43,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 33 transitions. [2021-11-09 10:45:43,284 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-09 10:45:43,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:45:43,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:45:43,285 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-09 10:45:43,285 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 10:45:43,285 INFO L791 eck$LassoCheckResult]: Stem: 208#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(11);~N~0 := 0; 209#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 217#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 218#L18-3 assume !(init_nondet_~i~0 < ~N~0); 202#L16 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; 203#L29-3 [2021-11-09 10:45:43,286 INFO L793 eck$LassoCheckResult]: Loop: 203#L29-3 assume !!(rangesum_~i~1 < ~N~0); 210#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 211#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 203#L29-3 [2021-11-09 10:45:43,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:43,286 INFO L85 PathProgramCache]: Analyzing trace with hash 28693898, now seen corresponding path program 1 times [2021-11-09 10:45:43,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:43,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131290508] [2021-11-09 10:45:43,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:43,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:43,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:45:43,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:45:43,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131290508] [2021-11-09 10:45:43,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131290508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:45:43,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:45:43,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:45:43,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091254589] [2021-11-09 10:45:43,369 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 10:45:43,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:43,370 INFO L85 PathProgramCache]: Analyzing trace with hash 56764, now seen corresponding path program 1 times [2021-11-09 10:45:43,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:43,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043307039] [2021-11-09 10:45:43,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:43,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:43,396 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:43,421 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:43,466 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 10:45:43,466 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 10:45:43,466 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 10:45:43,466 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 10:45:43,466 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 10:45:43,466 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:43,467 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 10:45:43,467 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 10:45:43,467 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration2_Loop [2021-11-09 10:45:43,467 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 10:45:43,467 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 10:45:43,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:43,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:43,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:43,510 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 10:45:43,511 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 10:45:43,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:43,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:43,522 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:43,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 10:45:43,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:45:43,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-09 10:45:43,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:43,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:43,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:43,598 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:43,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 10:45:43,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:45:43,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-09 10:45:43,827 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 10:45:43,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:43,830 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 10:45:43,830 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 10:45:43,830 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 10:45:43,830 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 10:45:43,830 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 10:45:43,830 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:43,830 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 10:45:43,830 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 10:45:43,830 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration2_Loop [2021-11-09 10:45:43,830 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 10:45:43,830 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 10:45:43,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:43,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:43,880 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 10:45:43,880 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 10:45:43,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:43,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:43,881 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:43,906 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:43,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:43,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:43,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:43,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:43,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:43,918 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:43,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:43,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-09 10:45:43,930 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 10:45:43,937 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-09 10:45:43,937 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-09 10:45:43,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:43,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:43,939 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:43,940 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 10:45:43,940 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 10:45:43,940 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 10:45:43,941 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_rangesum_~i~1, ~N~0) = -4*ULTIMATE.start_rangesum_~i~1 + 3*~N~0 Supporting invariants [] [2021-11-09 10:45:43,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-09 10:45:43,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:43,978 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 10:45:43,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:44,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:45:44,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:45:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:44,049 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 10:45:44,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:45:44,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:45:44,162 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-09 10:45:44,162 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 33 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:44,197 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 33 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 53 transitions. Complement of second has 9 states. [2021-11-09 10:45:44,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-09 10:45:44,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:44,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-11-09 10:45:44,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 3 letters. [2021-11-09 10:45:44,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:45:44,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 3 letters. [2021-11-09 10:45:44,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:45:44,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 6 letters. [2021-11-09 10:45:44,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:45:44,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 53 transitions. [2021-11-09 10:45:44,202 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-09 10:45:44,205 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 31 states and 46 transitions. [2021-11-09 10:45:44,205 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-11-09 10:45:44,206 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-11-09 10:45:44,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 46 transitions. [2021-11-09 10:45:44,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 10:45:44,206 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 46 transitions. [2021-11-09 10:45:44,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 46 transitions. [2021-11-09 10:45:44,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-11-09 10:45:44,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 28 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:44,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2021-11-09 10:45:44,211 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 43 transitions. [2021-11-09 10:45:44,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:45:44,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:45:44,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:45:44,215 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:44,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:45:44,257 INFO L93 Difference]: Finished difference Result 30 states and 43 transitions. [2021-11-09 10:45:44,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:45:44,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 43 transitions. [2021-11-09 10:45:44,260 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-09 10:45:44,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 43 transitions. [2021-11-09 10:45:44,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-11-09 10:45:44,262 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-11-09 10:45:44,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 43 transitions. [2021-11-09 10:45:44,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 10:45:44,262 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 43 transitions. [2021-11-09 10:45:44,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 43 transitions. [2021-11-09 10:45:44,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2021-11-09 10:45:44,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 28 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:44,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 42 transitions. [2021-11-09 10:45:44,268 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2021-11-09 10:45:44,268 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2021-11-09 10:45:44,268 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 10:45:44,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 42 transitions. [2021-11-09 10:45:44,273 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-09 10:45:44,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:45:44,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:45:44,274 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:45:44,274 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 10:45:44,275 INFO L791 eck$LassoCheckResult]: Stem: 373#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(11);~N~0 := 0; 374#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 387#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 388#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 395#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 396#L18-3 assume !(init_nondet_~i~0 < ~N~0); 369#L16 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; 370#L29-3 assume !!(rangesum_~i~1 < ~N~0); 375#L30 [2021-11-09 10:45:44,275 INFO L793 eck$LassoCheckResult]: Loop: 375#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 376#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 393#L29-3 assume !!(rangesum_~i~1 < ~N~0); 375#L30 [2021-11-09 10:45:44,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash 123162479, now seen corresponding path program 1 times [2021-11-09 10:45:44,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:44,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444977072] [2021-11-09 10:45:44,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:44,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:45:44,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:45:44,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444977072] [2021-11-09 10:45:44,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444977072] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:45:44,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87845472] [2021-11-09 10:45:44,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:44,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:45:44,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:44,362 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:45:44,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-09 10:45:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:44,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 10:45:44,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:45:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:45:44,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87845472] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:45:44,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:45:44,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-09 10:45:44,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018111499] [2021-11-09 10:45:44,483 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 10:45:44,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:44,484 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 1 times [2021-11-09 10:45:44,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:44,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549733583] [2021-11-09 10:45:44,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:44,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:44,499 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:44,522 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:44,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:45:44,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 10:45:44,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 10:45:44,630 INFO L87 Difference]: Start difference. First operand 29 states and 42 transitions. cyclomatic complexity: 19 Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:44,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:45:44,701 INFO L93 Difference]: Finished difference Result 32 states and 45 transitions. [2021-11-09 10:45:44,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 10:45:44,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 45 transitions. [2021-11-09 10:45:44,702 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-09 10:45:44,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 32 states and 45 transitions. [2021-11-09 10:45:44,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-11-09 10:45:44,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-11-09 10:45:44,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 45 transitions. [2021-11-09 10:45:44,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 10:45:44,704 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 45 transitions. [2021-11-09 10:45:44,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 45 transitions. [2021-11-09 10:45:44,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-11-09 10:45:44,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 30 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:44,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2021-11-09 10:45:44,714 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 44 transitions. [2021-11-09 10:45:44,714 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 44 transitions. [2021-11-09 10:45:44,714 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-09 10:45:44,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 44 transitions. [2021-11-09 10:45:44,715 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-09 10:45:44,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:45:44,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:45:44,715 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-11-09 10:45:44,715 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 10:45:44,716 INFO L791 eck$LassoCheckResult]: Stem: 468#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(11);~N~0 := 0; 469#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 478#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 479#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 486#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 487#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 488#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 490#L18-3 assume !(init_nondet_~i~0 < ~N~0); 460#L16 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; 461#L29-3 assume !!(rangesum_~i~1 < ~N~0); 470#L30 [2021-11-09 10:45:44,716 INFO L793 eck$LassoCheckResult]: Loop: 470#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 471#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 484#L29-3 assume !!(rangesum_~i~1 < ~N~0); 470#L30 [2021-11-09 10:45:44,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:44,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1898228851, now seen corresponding path program 2 times [2021-11-09 10:45:44,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:44,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883397435] [2021-11-09 10:45:44,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:44,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:44,743 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:44,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:44,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:44,785 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 2 times [2021-11-09 10:45:44,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:44,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941979883] [2021-11-09 10:45:44,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:44,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:44,801 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:44,808 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:44,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:44,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1698716202, now seen corresponding path program 1 times [2021-11-09 10:45:44,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:44,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404944692] [2021-11-09 10:45:44,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:44,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-09 10:45:44,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:45:44,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404944692] [2021-11-09 10:45:44,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404944692] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:45:44,884 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:45:44,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:45:44,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255283467] [2021-11-09 10:45:44,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:45:44,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:45:44,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:45:44,983 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. cyclomatic complexity: 19 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:45,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:45,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:45:45,050 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2021-11-09 10:45:45,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:45:45,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 51 transitions. [2021-11-09 10:45:45,052 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-09 10:45:45,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 39 states and 50 transitions. [2021-11-09 10:45:45,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-11-09 10:45:45,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2021-11-09 10:45:45,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 50 transitions. [2021-11-09 10:45:45,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 10:45:45,053 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2021-11-09 10:45:45,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 50 transitions. [2021-11-09 10:45:45,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2021-11-09 10:45:45,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 35 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:45,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2021-11-09 10:45:45,055 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2021-11-09 10:45:45,055 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2021-11-09 10:45:45,055 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-09 10:45:45,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 47 transitions. [2021-11-09 10:45:45,056 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-09 10:45:45,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:45:45,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:45:45,057 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:45:45,057 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 10:45:45,058 INFO L791 eck$LassoCheckResult]: Stem: 552#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(11);~N~0 := 0; 553#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 557#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 558#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 565#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 566#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 567#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 572#L18-3 assume !(init_nondet_~i~0 < ~N~0); 540#L16 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; 541#L29-3 assume !!(rangesum_~i~1 < ~N~0); 546#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 547#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 573#L29-3 assume !!(rangesum_~i~1 < ~N~0); 544#L30 [2021-11-09 10:45:45,058 INFO L793 eck$LassoCheckResult]: Loop: 544#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 545#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 570#L29-3 assume !!(rangesum_~i~1 < ~N~0); 544#L30 [2021-11-09 10:45:45,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:45,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1698718124, now seen corresponding path program 1 times [2021-11-09 10:45:45,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:45,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326309094] [2021-11-09 10:45:45,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:45,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:45,073 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:45,091 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:45,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:45,092 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 3 times [2021-11-09 10:45:45,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:45,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880221376] [2021-11-09 10:45:45,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:45,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:45,097 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:45,103 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:45,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:45,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1087986773, now seen corresponding path program 1 times [2021-11-09 10:45:45,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:45,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681295197] [2021-11-09 10:45:45,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:45,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:45,170 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:45:45,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:45:45,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681295197] [2021-11-09 10:45:45,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681295197] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:45:45,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79020909] [2021-11-09 10:45:45,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:45,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:45:45,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:45,173 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:45:45,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-09 10:45:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:45,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 10:45:45,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:45:45,361 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:45:45,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79020909] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:45:45,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:45:45,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-11-09 10:45:45,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331179660] [2021-11-09 10:45:45,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:45:45,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-09 10:45:45,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-11-09 10:45:45,443 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. cyclomatic complexity: 17 Second operand has 13 states, 12 states have (on average 2.25) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:45,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:45:45,700 INFO L93 Difference]: Finished difference Result 82 states and 104 transitions. [2021-11-09 10:45:45,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 10:45:45,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 104 transitions. [2021-11-09 10:45:45,701 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 15 [2021-11-09 10:45:45,702 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 70 states and 90 transitions. [2021-11-09 10:45:45,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2021-11-09 10:45:45,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2021-11-09 10:45:45,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 90 transitions. [2021-11-09 10:45:45,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 10:45:45,703 INFO L681 BuchiCegarLoop]: Abstraction has 70 states and 90 transitions. [2021-11-09 10:45:45,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states and 90 transitions. [2021-11-09 10:45:45,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 60. [2021-11-09 10:45:45,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.3) internal successors, (78), 59 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:45,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions. [2021-11-09 10:45:45,707 INFO L704 BuchiCegarLoop]: Abstraction has 60 states and 78 transitions. [2021-11-09 10:45:45,707 INFO L587 BuchiCegarLoop]: Abstraction has 60 states and 78 transitions. [2021-11-09 10:45:45,707 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-09 10:45:45,707 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 78 transitions. [2021-11-09 10:45:45,708 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-11-09 10:45:45,708 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:45:45,708 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:45:45,709 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:45:45,709 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 10:45:45,709 INFO L791 eck$LassoCheckResult]: Stem: 743#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(11);~N~0 := 0; 744#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 748#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 749#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 759#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 760#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 761#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 785#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 786#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 787#L18-3 assume !(init_nondet_~i~0 < ~N~0); 731#L16 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; 732#L29-3 assume !!(rangesum_~i~1 < ~N~0); 737#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 738#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 779#L29-3 assume !!(rangesum_~i~1 < ~N~0); 780#L30 [2021-11-09 10:45:45,709 INFO L793 eck$LassoCheckResult]: Loop: 780#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 782#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 781#L29-3 assume !!(rangesum_~i~1 < ~N~0); 780#L30 [2021-11-09 10:45:45,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:45,710 INFO L85 PathProgramCache]: Analyzing trace with hash -154124210, now seen corresponding path program 2 times [2021-11-09 10:45:45,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:45,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479853928] [2021-11-09 10:45:45,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:45,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:45,722 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:45,738 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:45,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:45,739 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 4 times [2021-11-09 10:45:45,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:45,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420393550] [2021-11-09 10:45:45,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:45,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:45,744 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:45,749 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:45,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:45,750 INFO L85 PathProgramCache]: Analyzing trace with hash -194270775, now seen corresponding path program 2 times [2021-11-09 10:45:45,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:45,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782120758] [2021-11-09 10:45:45,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:45,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:45,940 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:45:45,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:45:45,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782120758] [2021-11-09 10:45:45,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782120758] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:45:45,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066162116] [2021-11-09 10:45:45,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 10:45:45,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:45:45,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:45,947 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:45:45,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-09 10:45:46,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 10:45:46,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 10:45:46,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 10:45:46,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:45:46,203 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:45:46,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066162116] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:45:46,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:45:46,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-11-09 10:45:46,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827633528] [2021-11-09 10:45:46,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:45:46,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-09 10:45:46,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-11-09 10:45:46,288 INFO L87 Difference]: Start difference. First operand 60 states and 78 transitions. cyclomatic complexity: 25 Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:46,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:45:46,725 INFO L93 Difference]: Finished difference Result 75 states and 89 transitions. [2021-11-09 10:45:46,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 10:45:46,725 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 89 transitions. [2021-11-09 10:45:46,726 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-11-09 10:45:46,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 73 states and 87 transitions. [2021-11-09 10:45:46,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2021-11-09 10:45:46,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2021-11-09 10:45:46,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 87 transitions. [2021-11-09 10:45:46,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 10:45:46,728 INFO L681 BuchiCegarLoop]: Abstraction has 73 states and 87 transitions. [2021-11-09 10:45:46,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 87 transitions. [2021-11-09 10:45:46,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2021-11-09 10:45:46,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.2058823529411764) internal successors, (82), 67 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:46,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2021-11-09 10:45:46,732 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 82 transitions. [2021-11-09 10:45:46,733 INFO L587 BuchiCegarLoop]: Abstraction has 68 states and 82 transitions. [2021-11-09 10:45:46,733 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-09 10:45:46,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 82 transitions. [2021-11-09 10:45:46,733 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-11-09 10:45:46,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:45:46,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:45:46,734 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2021-11-09 10:45:46,734 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 10:45:46,735 INFO L791 eck$LassoCheckResult]: Stem: 966#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(11);~N~0 := 0; 967#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 972#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 973#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 982#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 983#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 984#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1018#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 1017#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1016#L18-3 assume !(init_nondet_~i~0 < ~N~0); 1014#L16 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; 979#L29-3 assume !!(rangesum_~i~1 < ~N~0); 960#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 961#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1012#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1009#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1000#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 995#L29-3 assume !!(rangesum_~i~1 < ~N~0); 996#L30 [2021-11-09 10:45:46,735 INFO L793 eck$LassoCheckResult]: Loop: 996#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 1011#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1008#L29-3 assume !!(rangesum_~i~1 < ~N~0); 996#L30 [2021-11-09 10:45:46,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:46,735 INFO L85 PathProgramCache]: Analyzing trace with hash -194268853, now seen corresponding path program 3 times [2021-11-09 10:45:46,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:46,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277391030] [2021-11-09 10:45:46,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:46,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:46,747 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:46,762 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:46,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:46,762 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 5 times [2021-11-09 10:45:46,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:46,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154479031] [2021-11-09 10:45:46,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:46,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:46,767 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:46,772 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:46,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:46,773 INFO L85 PathProgramCache]: Analyzing trace with hash -2142422100, now seen corresponding path program 3 times [2021-11-09 10:45:46,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:46,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244281880] [2021-11-09 10:45:46,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:46,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-09 10:45:46,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:45:46,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244281880] [2021-11-09 10:45:46,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244281880] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:45:46,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502296359] [2021-11-09 10:45:46,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 10:45:46,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:45:46,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:46,867 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:45:46,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-09 10:45:46,952 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-09 10:45:46,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 10:45:46,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-09 10:45:46,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:45:47,134 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:45:47,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502296359] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:45:47,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:45:47,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 14 [2021-11-09 10:45:47,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365514347] [2021-11-09 10:45:47,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:45:47,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-09 10:45:47,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-11-09 10:45:47,219 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. cyclomatic complexity: 21 Second operand has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 15 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) [2021-11-09 10:45:47,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:45:47,574 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2021-11-09 10:45:47,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-09 10:45:47,575 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 141 transitions. [2021-11-09 10:45:47,576 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 17 [2021-11-09 10:45:47,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 104 states and 125 transitions. [2021-11-09 10:45:47,577 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2021-11-09 10:45:47,577 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2021-11-09 10:45:47,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 125 transitions. [2021-11-09 10:45:47,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 10:45:47,578 INFO L681 BuchiCegarLoop]: Abstraction has 104 states and 125 transitions. [2021-11-09 10:45:47,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 125 transitions. [2021-11-09 10:45:47,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 91. [2021-11-09 10:45:47,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.1978021978021978) internal successors, (109), 90 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:47,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 109 transitions. [2021-11-09 10:45:47,583 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 109 transitions. [2021-11-09 10:45:47,583 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 109 transitions. [2021-11-09 10:45:47,583 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-09 10:45:47,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 109 transitions. [2021-11-09 10:45:47,584 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-11-09 10:45:47,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:45:47,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:45:47,585 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1] [2021-11-09 10:45:47,585 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 10:45:47,585 INFO L791 eck$LassoCheckResult]: Stem: 1247#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(11);~N~0 := 0; 1248#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 1261#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 1262#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 1270#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1271#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 1268#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1269#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1306#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1303#L18-3 assume !(init_nondet_~i~0 < ~N~0); 1302#L16 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; 1300#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1251#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1252#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1278#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1298#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1296#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1293#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1294#L30 [2021-11-09 10:45:47,586 INFO L793 eck$LassoCheckResult]: Loop: 1294#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 1297#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1295#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1294#L30 [2021-11-09 10:45:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:47,586 INFO L85 PathProgramCache]: Analyzing trace with hash -326653975, now seen corresponding path program 4 times [2021-11-09 10:45:47,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:47,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100437674] [2021-11-09 10:45:47,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:47,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:47,600 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:47,617 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:47,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:47,617 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 6 times [2021-11-09 10:45:47,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:47,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260334051] [2021-11-09 10:45:47,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:47,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:47,622 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:47,626 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:47,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:47,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1047353422, now seen corresponding path program 4 times [2021-11-09 10:45:47,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:47,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201003435] [2021-11-09 10:45:47,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:47,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:47,716 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-09 10:45:47,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:45:47,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201003435] [2021-11-09 10:45:47,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201003435] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:45:47,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019668191] [2021-11-09 10:45:47,717 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 10:45:47,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:45:47,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:47,719 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:45:47,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-09 10:45:47,816 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 10:45:47,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 10:45:47,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-09 10:45:47,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:45:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:45:48,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019668191] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 10:45:48,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 10:45:48,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2021-11-09 10:45:48,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654847065] [2021-11-09 10:45:48,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:45:48,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-09 10:45:48,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2021-11-09 10:45:48,160 INFO L87 Difference]: Start difference. First operand 91 states and 109 transitions. cyclomatic complexity: 25 Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:48,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:45:48,897 INFO L93 Difference]: Finished difference Result 164 states and 191 transitions. [2021-11-09 10:45:48,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-09 10:45:48,897 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 191 transitions. [2021-11-09 10:45:48,899 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 23 [2021-11-09 10:45:48,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 158 states and 185 transitions. [2021-11-09 10:45:48,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 124 [2021-11-09 10:45:48,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 124 [2021-11-09 10:45:48,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 185 transitions. [2021-11-09 10:45:48,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 10:45:48,902 INFO L681 BuchiCegarLoop]: Abstraction has 158 states and 185 transitions. [2021-11-09 10:45:48,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 185 transitions. [2021-11-09 10:45:48,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 139. [2021-11-09 10:45:48,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 139 states have (on average 1.1870503597122302) internal successors, (165), 138 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:48,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 165 transitions. [2021-11-09 10:45:48,918 INFO L704 BuchiCegarLoop]: Abstraction has 139 states and 165 transitions. [2021-11-09 10:45:48,918 INFO L587 BuchiCegarLoop]: Abstraction has 139 states and 165 transitions. [2021-11-09 10:45:48,919 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-09 10:45:48,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states and 165 transitions. [2021-11-09 10:45:48,920 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 21 [2021-11-09 10:45:48,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:45:48,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:45:48,924 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 3, 3, 1, 1, 1, 1, 1] [2021-11-09 10:45:48,924 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 10:45:48,924 INFO L791 eck$LassoCheckResult]: Stem: 1643#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(11);~N~0 := 0; 1644#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 1648#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 1649#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 1658#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1714#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 1713#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1711#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 1712#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1729#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 1730#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1740#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 1656#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 1657#L18-3 assume !(init_nondet_~i~0 < ~N~0); 1631#L16 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; 1632#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1738#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1737#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1654#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1655#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1735#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1736#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1682#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 1679#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1675#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1678#L30 [2021-11-09 10:45:48,925 INFO L793 eck$LassoCheckResult]: Loop: 1678#L30 assume rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 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; 1715#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 1716#L29-3 assume !!(rangesum_~i~1 < ~N~0); 1678#L30 [2021-11-09 10:45:48,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:48,925 INFO L85 PathProgramCache]: Analyzing trace with hash -185017358, now seen corresponding path program 5 times [2021-11-09 10:45:48,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:48,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962639872] [2021-11-09 10:45:48,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:48,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:48,939 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:48,964 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:48,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:48,965 INFO L85 PathProgramCache]: Analyzing trace with hash 59702, now seen corresponding path program 7 times [2021-11-09 10:45:48,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:48,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315121187] [2021-11-09 10:45:48,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:48,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:48,974 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:48,978 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:48,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:48,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1409041499, now seen corresponding path program 5 times [2021-11-09 10:45:48,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:48,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641995596] [2021-11-09 10:45:48,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:48,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:49,003 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:49,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:50,598 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 10:45:50,598 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 10:45:50,598 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 10:45:50,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 10:45:50,599 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 10:45:50,599 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:50,599 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 10:45:50,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 10:45:50,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration9_Lasso [2021-11-09 10:45:50,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 10:45:50,599 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 10:45:50,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:50,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:51,183 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 10:45:51,183 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 10:45:51,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:51,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:51,185 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:51,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-09 10:45:51,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:51,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:51,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:51,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:51,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:51,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:51,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:51,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:51,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:51,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:51,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:51,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:51,215 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:51,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-09 10:45:51,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:51,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:51,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:51,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:51,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:51,226 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:45:51,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:45:51,245 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:51,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:51,264 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:51,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:51,265 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:51,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-09 10:45:51,266 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:51,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:51,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:51,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:51,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:51,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:45:51,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:45:51,303 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:51,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:51,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:51,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:51,338 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:51,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:51,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:51,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:51,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:51,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:51,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:45:51,354 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:45:51,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-09 10:45:51,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:51,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:51,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:51,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:51,407 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:51,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:51,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:51,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:51,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:51,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:51,421 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:45:51,421 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:45:51,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-09 10:45:51,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:51,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:51,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:51,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:51,478 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:51,482 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:51,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:51,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:51,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:51,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:51,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:45:51,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:45:51,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-09 10:45:51,509 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:51,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:51,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:51,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:51,547 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:51,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:51,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:51,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:51,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:51,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:51,560 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:45:51,560 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:45:51,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-09 10:45:51,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:51,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:51,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:51,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:51,615 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:51,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:51,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:51,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:51,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:51,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:51,631 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:45:51,631 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:45:51,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-09 10:45:51,649 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:51,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:51,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:51,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:51,690 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:51,692 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:51,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:51,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:45:51,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:51,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:51,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:51,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:45:51,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:45:51,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-09 10:45:51,725 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:45:51,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:51,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:51,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:51,764 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:51,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 10:45:51,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:45:51,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:45:51,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:45:51,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:45:51,784 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 10:45:51,784 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 10:45:51,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-09 10:45:51,823 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 10:45:51,844 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-11-09 10:45:51,844 INFO L444 ModelExtractionUtils]: 20 out of 34 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-11-09 10:45:51,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:51,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:45:51,846 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:45:51,847 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 10:45:51,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-09 10:45:51,871 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-09 10:45:51,871 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 10:45:51,871 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_rangesum_~i~1, ~N~0) = -1*ULTIMATE.start_rangesum_~i~1 + 1*~N~0 Supporting invariants [] [2021-11-09 10:45:51,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:51,943 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-11-09 10:45:51,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:51,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 10:45:51,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:45:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:45:52,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 10:45:52,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:45:52,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:45:52,081 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 10:45:52,081 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 139 states and 165 transitions. cyclomatic complexity: 37 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:52,112 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 139 states and 165 transitions. cyclomatic complexity: 37. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 178 states and 215 transitions. Complement of second has 7 states. [2021-11-09 10:45:52,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-09 10:45:52,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:52,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-11-09 10:45:52,115 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 25 letters. Loop has 3 letters. [2021-11-09 10:45:52,116 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:45:52,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 28 letters. Loop has 3 letters. [2021-11-09 10:45:52,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:45:52,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 25 letters. Loop has 6 letters. [2021-11-09 10:45:52,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:45:52,118 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 215 transitions. [2021-11-09 10:45:52,121 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 18 [2021-11-09 10:45:52,122 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 148 states and 176 transitions. [2021-11-09 10:45:52,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2021-11-09 10:45:52,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 114 [2021-11-09 10:45:52,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 176 transitions. [2021-11-09 10:45:52,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 10:45:52,124 INFO L681 BuchiCegarLoop]: Abstraction has 148 states and 176 transitions. [2021-11-09 10:45:52,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 176 transitions. [2021-11-09 10:45:52,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 142. [2021-11-09 10:45:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 142 states have (on average 1.1971830985915493) internal successors, (170), 141 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:45:52,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 170 transitions. [2021-11-09 10:45:52,147 INFO L704 BuchiCegarLoop]: Abstraction has 142 states and 170 transitions. [2021-11-09 10:45:52,147 INFO L587 BuchiCegarLoop]: Abstraction has 142 states and 170 transitions. [2021-11-09 10:45:52,147 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-09 10:45:52,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 170 transitions. [2021-11-09 10:45:52,148 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 18 [2021-11-09 10:45:52,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:45:52,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:45:52,150 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:45:52,150 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 10:45:52,151 INFO L791 eck$LassoCheckResult]: Stem: 2113#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(11);~N~0 := 0; 2114#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~2, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 2118#L44 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);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; 2119#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 2128#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2173#L18-3 assume !!(init_nondet_~i~0 < ~N~0);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; 2172#L18-2 init_nondet_#t~post3 := init_nondet_~i~0;init_nondet_~i~0 := 1 + init_nondet_#t~post3;havoc init_nondet_#t~post3; 2170#L18-3 assume !(init_nondet_~i~0 < ~N~0); 2169#L16 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; 2168#L29-3 assume !!(rangesum_~i~1 < ~N~0); 2167#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2166#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2165#L29-3 assume !!(rangesum_~i~1 < ~N~0); 2164#L30 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2163#L29-2 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2161#L29-3 assume !(rangesum_~i~1 < ~N~0); 2159#L29-4 assume !(0 != rangesum_~cnt~0);rangesum_#res := 0; 2157#L38 main_#t~ret8 := rangesum_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;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; 2155#L29-8 assume !!(rangesum_~i~1 < ~N~0); 2153#L30-2 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2151#L29-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2149#L29-8 assume !!(rangesum_~i~1 < ~N~0); 2147#L30-2 assume !(rangesum_~i~1 > (if ~N~0 < 0 && 0 != ~N~0 % 2 then 1 + ~N~0 / 2 else ~N~0 / 2)); 2146#L29-7 rangesum_#t~post5 := rangesum_~i~1;rangesum_~i~1 := 1 + rangesum_#t~post5;havoc rangesum_#t~post5; 2141#L29-8 assume !(rangesum_~i~1 < ~N~0); 2140#L29-9 assume !(0 != rangesum_~cnt~0);rangesum_#res := 0; 2109#L38-1 main_#t~ret11 := rangesum_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~2 := 0; 2110#L57-3 [2021-11-09 10:45:52,152 INFO L793 eck$LassoCheckResult]: Loop: 2110#L57-3 assume !!(main_~i~2 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~2), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~2, 4);havoc main_#t~mem14; 2121#L57-2 main_#t~post13 := main_~i~2;main_~i~2 := 1 + main_#t~post13;havoc main_#t~post13; 2110#L57-3 [2021-11-09 10:45:52,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:52,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1751120697, now seen corresponding path program 1 times [2021-11-09 10:45:52,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:52,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70649271] [2021-11-09 10:45:52,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:52,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:52,171 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:52,195 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:52,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:52,196 INFO L85 PathProgramCache]: Analyzing trace with hash 3427, now seen corresponding path program 1 times [2021-11-09 10:45:52,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:52,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621719010] [2021-11-09 10:45:52,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:52,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:52,205 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:52,210 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:52,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:45:52,212 INFO L85 PathProgramCache]: Analyzing trace with hash 800192681, now seen corresponding path program 1 times [2021-11-09 10:45:52,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:45:52,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086367662] [2021-11-09 10:45:52,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:45:52,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:45:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:52,244 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:45:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:45:52,267 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:45:53,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:53,790 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 10:45:53,791 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 10:45:53,791 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 10:45:53,791 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 10:45:53,791 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 10:45:53,791 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:45:53,791 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 10:45:53,791 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 10:45:53,791 INFO L133 ssoRankerPreferences]: Filename of dumped script: rangesum.i_Iteration10_Lasso [2021-11-09 10:45:53,791 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 10:45:53,791 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 10:45:53,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:53,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:53,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:53,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:45:53,942 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) [2021-11-09 10:45:53,951 INFO L168 Benchmark]: Toolchain (without parser) took 15064.10 ms. Allocated memory was 104.9 MB in the beginning and 192.9 MB in the end (delta: 88.1 MB). Free memory was 76.9 MB in the beginning and 122.2 MB in the end (delta: -45.3 MB). Peak memory consumption was 117.0 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:53,952 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 104.9 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:45:53,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.49 ms. Allocated memory is still 104.9 MB. Free memory was 76.6 MB in the beginning and 80.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:53,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.44 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 78.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:53,958 INFO L168 Benchmark]: Boogie Preprocessor took 30.16 ms. Allocated memory is still 104.9 MB. Free memory was 78.1 MB in the beginning and 76.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:53,959 INFO L168 Benchmark]: RCFGBuilder took 444.63 ms. Allocated memory is still 104.9 MB. Free memory was 76.5 MB in the beginning and 63.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:53,959 INFO L168 Benchmark]: BuchiAutomizer took 14276.34 ms. Allocated memory was 104.9 MB in the beginning and 192.9 MB in the end (delta: 88.1 MB). Free memory was 63.4 MB in the beginning and 122.2 MB in the end (delta: -58.8 MB). Peak memory consumption was 106.0 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:53,961 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 104.9 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 249.49 ms. Allocated memory is still 104.9 MB. Free memory was 76.6 MB in the beginning and 80.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.44 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 78.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.16 ms. Allocated memory is still 104.9 MB. Free memory was 78.1 MB in the beginning and 76.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 444.63 ms. Allocated memory is still 104.9 MB. Free memory was 76.5 MB in the beginning and 63.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 14276.34 ms. Allocated memory was 104.9 MB in the beginning and 192.9 MB in the end (delta: 88.1 MB). Free memory was 63.4 MB in the beginning and 122.2 MB in the end (delta: -58.8 MB). Peak memory consumption was 106.0 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. [2021-11-09 10:45:53,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:54,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:54,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-11-09 10:45:54,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-09 10:45:54,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-11-09 10:45:55,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01c6f8a4-1232-439e-a38c-7fa5cb4f03af/bin/uautomizer-IVEQpCNsaX/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)