./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/heapsort.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/heapsort.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt --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 149fdbbcb5d1f0b05c2de89b523b2d2cfc590a6f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:01:52,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:01:52,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:01:52,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:01:52,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:01:52,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:01:52,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:01:52,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:01:52,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:01:52,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:01:52,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:01:52,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:01:52,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:01:52,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:01:52,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:01:52,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:01:52,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:01:52,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:01:52,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:01:52,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:01:52,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:01:52,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:01:52,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:01:52,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:01:52,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:01:52,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:01:52,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:01:52,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:01:52,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:01:52,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:01:52,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:01:52,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:01:52,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:01:52,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:01:52,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:01:52,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:01:52,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:01:52,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:01:52,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:01:52,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:01:52,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:01:52,585 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:01:52,636 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:01:52,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:01:52,642 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:01:52,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:01:52,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:01:52,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:01:52,644 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:01:52,644 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:01:52,645 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:01:52,645 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:01:52,646 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:01:52,646 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:01:52,646 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:01:52,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:01:52,647 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:01:52,647 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:01:52,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:01:52,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:01:52,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:01:52,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:01:52,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:01:52,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:01:52,649 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:01:52,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:01:52,649 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:01:52,649 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:01:52,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:01:52,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:01:52,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:01:52,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:01:52,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:01:52,652 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:01:52,654 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:01:52,654 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_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 149fdbbcb5d1f0b05c2de89b523b2d2cfc590a6f [2021-10-13 00:01:52,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:01:53,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:01:53,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:01:53,027 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:01:53,029 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:01:53,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/loop-invgen/heapsort.i [2021-10-13 00:01:53,124 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/data/605d5aaa0/cfa45fbedf8244a8aa09d4b6b8d996e1/FLAG963e9c18c [2021-10-13 00:01:53,571 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:01:53,572 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/sv-benchmarks/c/loop-invgen/heapsort.i [2021-10-13 00:01:53,585 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/data/605d5aaa0/cfa45fbedf8244a8aa09d4b6b8d996e1/FLAG963e9c18c [2021-10-13 00:01:53,946 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/data/605d5aaa0/cfa45fbedf8244a8aa09d4b6b8d996e1 [2021-10-13 00:01:53,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:01:53,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:01:53,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:01:53,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:01:53,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:01:53,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:01:53" (1/1) ... [2021-10-13 00:01:53,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c20b4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:53, skipping insertion in model container [2021-10-13 00:01:53,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:01:53" (1/1) ... [2021-10-13 00:01:53,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:01:53,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:01:54,165 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_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2021-10-13 00:01:54,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:01:54,197 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:01:54,209 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_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2021-10-13 00:01:54,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:01:54,230 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:01:54,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:54 WrapperNode [2021-10-13 00:01:54,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:01:54,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:01:54,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:01:54,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:01:54,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:54" (1/1) ... [2021-10-13 00:01:54,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:54" (1/1) ... [2021-10-13 00:01:54,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:01:54,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:01:54,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:01:54,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:01:54,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:54" (1/1) ... [2021-10-13 00:01:54,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:54" (1/1) ... [2021-10-13 00:01:54,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:54" (1/1) ... [2021-10-13 00:01:54,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:54" (1/1) ... [2021-10-13 00:01:54,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:54" (1/1) ... [2021-10-13 00:01:54,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:54" (1/1) ... [2021-10-13 00:01:54,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:54" (1/1) ... [2021-10-13 00:01:54,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:01:54,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:01:54,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:01:54,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:01:54,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:54" (1/1) ... [2021-10-13 00:01:54,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:54,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:54,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:54,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:01:54,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:01:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:01:54,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:01:54,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:01:54,717 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:01:54,718 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-10-13 00:01:54,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:54 BoogieIcfgContainer [2021-10-13 00:01:54,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:01:54,721 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:01:54,721 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:01:54,724 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:01:54,724 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:01:54,725 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:01:53" (1/3) ... [2021-10-13 00:01:54,726 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a87e8db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:01:54, skipping insertion in model container [2021-10-13 00:01:54,726 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:01:54,727 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:54" (2/3) ... [2021-10-13 00:01:54,727 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a87e8db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:01:54, skipping insertion in model container [2021-10-13 00:01:54,727 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:01:54,727 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:54" (3/3) ... [2021-10-13 00:01:54,729 INFO L389 chiAutomizerObserver]: Analyzing ICFG heapsort.i [2021-10-13 00:01:54,789 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:01:54,789 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:01:54,789 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:01:54,790 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:01:54,790 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:01:54,790 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:01:54,790 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:01:54,790 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:01:54,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 55 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 54 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) [2021-10-13 00:01:54,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2021-10-13 00:01:54,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:01:54,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:01:54,894 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:01:54,910 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:54,910 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:01:54,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 55 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 54 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) [2021-10-13 00:01:54,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2021-10-13 00:01:54,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:01:54,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:01:54,917 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:01:54,917 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:54,924 INFO L791 eck$LassoCheckResult]: Stem: 48#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(9); 37#L-1true main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 19#L27true assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 4#L30true assume !(main_~l~0 > 1);main_#t~post5 := main_~r~0;main_~r~0 := main_#t~post5 - 1;havoc main_#t~post5; 16#L59-1true [2021-10-13 00:01:54,925 INFO L793 eck$LassoCheckResult]: Loop: 16#L59-1true assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 49#L38-2true assume !true; 35#L38-3true assume main_~l~0 > 1;__VERIFIER_assert_#in~cond := (if 1 <= main_~l~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 15#L18-30true assume !(0 == __VERIFIER_assert_~cond); 20#L18-32true __VERIFIER_assert_#in~cond := (if main_~l~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 33#L18-33true assume !(0 == __VERIFIER_assert_~cond); 14#L18-35true main_#t~post8 := main_~l~0;main_~l~0 := main_#t~post8 - 1;havoc main_#t~post8; 16#L59-1true [2021-10-13 00:01:54,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:54,931 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-10-13 00:01:54,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:54,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701055659] [2021-10-13 00:01:54,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:54,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:55,049 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:55,091 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:55,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:55,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1007028738, now seen corresponding path program 1 times [2021-10-13 00:01:55,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:55,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628507059] [2021-10-13 00:01:55,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:55,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:55,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:55,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628507059] [2021-10-13 00:01:55,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628507059] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:55,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:55,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:01:55,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443094682] [2021-10-13 00:01:55,148 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:01:55,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:55,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:01:55,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:01:55,174 INFO L87 Difference]: Start difference. First operand has 55 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 54 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:55,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:55,211 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2021-10-13 00:01:55,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:01:55,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 62 transitions. [2021-10-13 00:01:55,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2021-10-13 00:01:55,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 37 states and 43 transitions. [2021-10-13 00:01:55,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-10-13 00:01:55,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-10-13 00:01:55,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 43 transitions. [2021-10-13 00:01:55,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:01:55,238 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-10-13 00:01:55,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 43 transitions. [2021-10-13 00:01:55,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-13 00:01:55,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.162162162162162) internal successors, (43), 36 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) [2021-10-13 00:01:55,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2021-10-13 00:01:55,279 INFO L704 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-10-13 00:01:55,279 INFO L587 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-10-13 00:01:55,280 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:01:55,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 43 transitions. [2021-10-13 00:01:55,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2021-10-13 00:01:55,283 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:01:55,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:01:55,283 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:01:55,284 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:55,284 INFO L791 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 129#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 130#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 120#L30 assume !(main_~l~0 > 1);main_#t~post5 := main_~r~0;main_~r~0 := main_#t~post5 - 1;havoc main_#t~post5; 121#L59-1 [2021-10-13 00:01:55,285 INFO L793 eck$LassoCheckResult]: Loop: 121#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 139#L38-2 assume !(main_~j~0 <= main_~r~0); 122#L38-3 assume main_~l~0 > 1;__VERIFIER_assert_#in~cond := (if 1 <= main_~l~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 123#L18-30 assume !(0 == __VERIFIER_assert_~cond); 136#L18-32 __VERIFIER_assert_#in~cond := (if main_~l~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 118#L18-33 assume !(0 == __VERIFIER_assert_~cond); 119#L18-35 main_#t~post8 := main_~l~0;main_~l~0 := main_#t~post8 - 1;havoc main_#t~post8; 121#L59-1 [2021-10-13 00:01:55,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:55,288 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2021-10-13 00:01:55,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:55,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888361514] [2021-10-13 00:01:55,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:55,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:55,329 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:55,363 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:55,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:55,364 INFO L82 PathProgramCache]: Analyzing trace with hash -147559562, now seen corresponding path program 1 times [2021-10-13 00:01:55,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:55,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354682818] [2021-10-13 00:01:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:55,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:55,374 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:55,385 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:55,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:55,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1812261295, now seen corresponding path program 1 times [2021-10-13 00:01:55,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:55,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094506294] [2021-10-13 00:01:55,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:55,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:55,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:55,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:55,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094506294] [2021-10-13 00:01:55,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094506294] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:55,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:55,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:01:55,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847082121] [2021-10-13 00:01:55,701 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:01:55,702 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:01:55,702 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:01:55,703 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:01:55,703 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:01:55,703 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:55,703 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:01:55,703 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:01:55,703 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration2_Loop [2021-10-13 00:01:55,704 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:01:55,704 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:01:55,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:55,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:55,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:55,827 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:01:55,828 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:01:55,830 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:55,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:55,833 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:55,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:01:55,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:01:55,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:01:55,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:55,905 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:55,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:55,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:55,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:01:55,913 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:01:55,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:01:56,159 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:01:56,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:56,167 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:01:56,167 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:01:56,167 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:01:56,167 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:01:56,167 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:01:56,168 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:56,168 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:01:56,168 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:01:56,168 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration2_Loop [2021-10-13 00:01:56,168 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:01:56,168 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:01:56,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:56,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:56,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:56,272 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:01:56,277 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:01:56,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:56,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:56,283 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:56,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:01:56,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:01:56,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:01:56,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:01:56,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:01:56,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:01:56,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:01:56,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:01:56,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:01:56,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:01:56,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:56,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:56,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:56,360 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:56,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:01:56,363 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 [2021-10-13 00:01:56,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:01:56,374 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:01:56,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:01:56,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:01:56,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:01:56,377 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:01:56,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:01:56,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:01:56,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:56,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:56,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:56,419 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:56,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:01:56,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:01:56,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:01:56,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:01:56,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:01:56,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:01:56,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:01:56,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:01:56,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:01:56,452 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:01:56,462 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:01:56,463 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:01:56,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:56,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:56,467 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:56,475 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:01:56,475 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:01:56,476 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:01:56,476 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~l~0) = 1*ULTIMATE.start_main_~l~0 Supporting invariants [] [2021-10-13 00:01:56,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:01:56,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:56,519 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:01:56,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:56,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:01:56,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:01:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:56,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:01:56,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:01:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:56,692 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:01:56,694 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 43 transitions. cyclomatic complexity: 7 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) [2021-10-13 00:01:56,775 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 43 transitions. cyclomatic complexity: 7. 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) Result 106 states and 124 transitions. Complement of second has 6 states. [2021-10-13 00:01:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:01:56,777 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2021-10-13 00:01:56,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2021-10-13 00:01:56,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 4 letters. Loop has 7 letters. [2021-10-13 00:01:56,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:01:56,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 11 letters. Loop has 7 letters. [2021-10-13 00:01:56,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:01:56,786 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 4 letters. Loop has 14 letters. [2021-10-13 00:01:56,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:01:56,787 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 124 transitions. [2021-10-13 00:01:56,789 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2021-10-13 00:01:56,791 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 102 states and 120 transitions. [2021-10-13 00:01:56,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2021-10-13 00:01:56,792 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2021-10-13 00:01:56,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 120 transitions. [2021-10-13 00:01:56,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:01:56,792 INFO L681 BuchiCegarLoop]: Abstraction has 102 states and 120 transitions. [2021-10-13 00:01:56,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 120 transitions. [2021-10-13 00:01:56,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2021-10-13 00:01:56,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 100 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2021-10-13 00:01:56,805 INFO L704 BuchiCegarLoop]: Abstraction has 101 states and 118 transitions. [2021-10-13 00:01:56,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:56,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:01:56,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:01:56,806 INFO L87 Difference]: Start difference. First operand 101 states and 118 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:56,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:56,826 INFO L93 Difference]: Finished difference Result 121 states and 140 transitions. [2021-10-13 00:01:56,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:01:56,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 140 transitions. [2021-10-13 00:01:56,831 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 87 [2021-10-13 00:01:56,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 92 states and 106 transitions. [2021-10-13 00:01:56,835 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2021-10-13 00:01:56,835 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2021-10-13 00:01:56,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 106 transitions. [2021-10-13 00:01:56,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:01:56,837 INFO L681 BuchiCegarLoop]: Abstraction has 92 states and 106 transitions. [2021-10-13 00:01:56,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 106 transitions. [2021-10-13 00:01:56,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 62. [2021-10-13 00:01:56,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.1612903225806452) internal successors, (72), 61 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:56,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2021-10-13 00:01:56,842 INFO L704 BuchiCegarLoop]: Abstraction has 62 states and 72 transitions. [2021-10-13 00:01:56,842 INFO L587 BuchiCegarLoop]: Abstraction has 62 states and 72 transitions. [2021-10-13 00:01:56,843 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:01:56,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 72 transitions. [2021-10-13 00:01:56,843 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 58 [2021-10-13 00:01:56,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:01:56,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:01:56,844 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:01:56,844 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:56,845 INFO L791 eck$LassoCheckResult]: Stem: 572#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 551#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 552#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 542#L30 assume main_~l~0 > 1;main_#t~post4 := main_~l~0;main_~l~0 := main_#t~post4 - 1;havoc main_#t~post4; 543#L59-1 [2021-10-13 00:01:56,845 INFO L793 eck$LassoCheckResult]: Loop: 543#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 581#L38-2 assume !(main_~j~0 <= main_~r~0); 578#L38-3 assume main_~l~0 > 1;__VERIFIER_assert_#in~cond := (if 1 <= main_~l~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 558#L18-30 assume !(0 == __VERIFIER_assert_~cond); 559#L18-32 __VERIFIER_assert_#in~cond := (if main_~l~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 540#L18-33 assume !(0 == __VERIFIER_assert_~cond); 541#L18-35 main_#t~post8 := main_~l~0;main_~l~0 := main_#t~post8 - 1;havoc main_#t~post8; 543#L59-1 [2021-10-13 00:01:56,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:56,845 INFO L82 PathProgramCache]: Analyzing trace with hash 925670, now seen corresponding path program 1 times [2021-10-13 00:01:56,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:56,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098273627] [2021-10-13 00:01:56,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:56,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:56,859 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:56,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:56,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:56,885 INFO L82 PathProgramCache]: Analyzing trace with hash -147559562, now seen corresponding path program 2 times [2021-10-13 00:01:56,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:56,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742150266] [2021-10-13 00:01:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:56,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:56,909 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:56,927 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:56,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:56,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1673359375, now seen corresponding path program 1 times [2021-10-13 00:01:56,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:56,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052133825] [2021-10-13 00:01:56,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:56,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:56,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:56,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:56,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052133825] [2021-10-13 00:01:56,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052133825] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:56,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:56,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:01:56,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561853927] [2021-10-13 00:01:57,138 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:01:57,138 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:01:57,138 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:01:57,138 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:01:57,139 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:01:57,139 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:57,139 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:01:57,139 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:01:57,139 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration3_Loop [2021-10-13 00:01:57,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:01:57,139 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:01:57,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:57,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:57,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:57,251 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:01:57,251 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:01:57,251 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:57,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:57,253 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:57,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:01:57,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:01:57,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:01:57,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:57,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:57,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:57,335 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:57,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:01:57,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:01:57,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:01:57,587 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:01:57,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:57,591 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:01:57,591 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:01:57,597 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:01:57,598 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:01:57,598 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:01:57,598 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:57,598 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:01:57,598 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:01:57,598 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration3_Loop [2021-10-13 00:01:57,598 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:01:57,598 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:01:57,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:57,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:57,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:57,694 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:01:57,694 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:01:57,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:57,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:57,699 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:57,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:57,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:01:57,716 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:01:57,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:01:57,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:01:57,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:01:57,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:01:57,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:01:57,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:01:57,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:01:57,734 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:01:57,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:57,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:57,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:57,754 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:57,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:01:57,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:01:57,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:01:57,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:01:57,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:01:57,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:01:57,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:01:57,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:01:57,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:01:57,774 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:01:57,802 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:01:57,802 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:01:57,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:57,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:57,811 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:57,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:01:57,812 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:01:57,812 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:01:57,812 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:01:57,812 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~l~0) = 1*ULTIMATE.start_main_~l~0 Supporting invariants [] [2021-10-13 00:01:57,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:57,836 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:01:57,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:57,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:01:57,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:01:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:57,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:01:57,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:01:57,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:57,958 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:01:57,958 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 62 states and 72 transitions. cyclomatic complexity: 12 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) [2021-10-13 00:01:57,988 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 62 states and 72 transitions. cyclomatic complexity: 12. 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) Result 150 states and 175 transitions. Complement of second has 6 states. [2021-10-13 00:01:57,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:01:57,989 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2021-10-13 00:01:57,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2021-10-13 00:01:57,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 77 transitions. Stem has 4 letters. Loop has 7 letters. [2021-10-13 00:01:57,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:01:57,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 77 transitions. Stem has 11 letters. Loop has 7 letters. [2021-10-13 00:01:57,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:01:57,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 77 transitions. Stem has 4 letters. Loop has 14 letters. [2021-10-13 00:01:57,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:01:57,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 175 transitions. [2021-10-13 00:01:57,994 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 81 [2021-10-13 00:01:57,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 117 states and 137 transitions. [2021-10-13 00:01:57,996 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 87 [2021-10-13 00:01:57,996 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 88 [2021-10-13 00:01:57,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 117 states and 137 transitions. [2021-10-13 00:01:57,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:01:57,997 INFO L681 BuchiCegarLoop]: Abstraction has 117 states and 137 transitions. [2021-10-13 00:01:57,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states and 137 transitions. [2021-10-13 00:01:58,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 63. [2021-10-13 00:01:58,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.1746031746031746) internal successors, (74), 62 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:58,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2021-10-13 00:01:58,006 INFO L704 BuchiCegarLoop]: Abstraction has 63 states and 74 transitions. [2021-10-13 00:01:58,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:58,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:01:58,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:01:58,007 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:58,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:58,197 INFO L93 Difference]: Finished difference Result 195 states and 219 transitions. [2021-10-13 00:01:58,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:01:58,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 219 transitions. [2021-10-13 00:01:58,200 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 119 [2021-10-13 00:01:58,203 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 195 states and 219 transitions. [2021-10-13 00:01:58,204 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 146 [2021-10-13 00:01:58,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 146 [2021-10-13 00:01:58,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 219 transitions. [2021-10-13 00:01:58,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:01:58,205 INFO L681 BuchiCegarLoop]: Abstraction has 195 states and 219 transitions. [2021-10-13 00:01:58,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 219 transitions. [2021-10-13 00:01:58,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 65. [2021-10-13 00:01:58,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.1692307692307693) internal successors, (76), 64 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:58,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2021-10-13 00:01:58,212 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-10-13 00:01:58,212 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-10-13 00:01:58,212 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:01:58,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 76 transitions. [2021-10-13 00:01:58,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2021-10-13 00:01:58,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:01:58,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:01:58,214 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:01:58,214 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:58,214 INFO L791 eck$LassoCheckResult]: Stem: 1126#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 1089#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 1090#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 1075#L30 assume !(main_~l~0 > 1);main_#t~post5 := main_~r~0;main_~r~0 := main_#t~post5 - 1;havoc main_#t~post5; 1077#L59-1 [2021-10-13 00:01:58,215 INFO L793 eck$LassoCheckResult]: Loop: 1077#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 1105#L38-2 assume !(main_~j~0 <= main_~r~0); 1078#L38-3 assume !(main_~l~0 > 1);__VERIFIER_assert_#in~cond := (if 1 <= main_~r~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1079#L18-36 assume !(0 == __VERIFIER_assert_~cond); 1086#L18-38 __VERIFIER_assert_#in~cond := (if main_~r~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1087#L18-39 assume !(0 == __VERIFIER_assert_~cond); 1088#L18-41 main_#t~post9 := main_~r~0;main_~r~0 := main_#t~post9 - 1;havoc main_#t~post9; 1077#L59-1 [2021-10-13 00:01:58,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:58,215 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 3 times [2021-10-13 00:01:58,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:58,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588063140] [2021-10-13 00:01:58,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:58,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:58,228 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:58,241 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:58,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:58,242 INFO L82 PathProgramCache]: Analyzing trace with hash -126564852, now seen corresponding path program 1 times [2021-10-13 00:01:58,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:58,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390852475] [2021-10-13 00:01:58,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:58,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:58,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:58,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:58,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390852475] [2021-10-13 00:01:58,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390852475] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:58,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:58,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:01:58,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757673518] [2021-10-13 00:01:58,271 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:01:58,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:58,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:01:58,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:01:58,272 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:58,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:58,341 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2021-10-13 00:01:58,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:01:58,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 138 transitions. [2021-10-13 00:01:58,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 57 [2021-10-13 00:01:58,345 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 120 states and 137 transitions. [2021-10-13 00:01:58,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2021-10-13 00:01:58,346 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2021-10-13 00:01:58,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 137 transitions. [2021-10-13 00:01:58,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:01:58,346 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 137 transitions. [2021-10-13 00:01:58,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 137 transitions. [2021-10-13 00:01:58,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 65. [2021-10-13 00:01:58,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.1692307692307693) internal successors, (76), 64 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:58,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2021-10-13 00:01:58,352 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-10-13 00:01:58,352 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-10-13 00:01:58,353 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:01:58,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 76 transitions. [2021-10-13 00:01:58,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2021-10-13 00:01:58,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:01:58,354 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:01:58,354 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:01:58,354 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:58,355 INFO L791 eck$LassoCheckResult]: Stem: 1320#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(9); 1283#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 1284#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 1270#L30 assume !(main_~l~0 > 1);main_#t~post5 := main_~r~0;main_~r~0 := main_#t~post5 - 1;havoc main_#t~post5; 1272#L59-1 [2021-10-13 00:01:58,355 INFO L793 eck$LassoCheckResult]: Loop: 1272#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 1300#L38-2 assume !!(main_~j~0 <= main_~r~0); 1306#L39 assume !(main_~j~0 < main_~r~0); 1307#L39-1 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1286#L18-12 assume !(0 == __VERIFIER_assert_~cond); 1287#L18-14 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1321#L18-15 assume !(0 == __VERIFIER_assert_~cond); 1322#L18-17 assume 0 != main_#t~nondet7;havoc main_#t~nondet7; 1277#L38-3 assume !(main_~l~0 > 1);__VERIFIER_assert_#in~cond := (if 1 <= main_~r~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1278#L18-36 assume !(0 == __VERIFIER_assert_~cond); 1281#L18-38 __VERIFIER_assert_#in~cond := (if main_~r~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1282#L18-39 assume !(0 == __VERIFIER_assert_~cond); 1285#L18-41 main_#t~post9 := main_~r~0;main_~r~0 := main_#t~post9 - 1;havoc main_#t~post9; 1272#L59-1 [2021-10-13 00:01:58,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:58,355 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 4 times [2021-10-13 00:01:58,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:58,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70786422] [2021-10-13 00:01:58,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:58,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:58,367 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:58,379 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:58,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:58,380 INFO L82 PathProgramCache]: Analyzing trace with hash 831355200, now seen corresponding path program 1 times [2021-10-13 00:01:58,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:58,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091535152] [2021-10-13 00:01:58,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:58,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:58,393 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:58,405 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:58,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:58,406 INFO L82 PathProgramCache]: Analyzing trace with hash -490035015, now seen corresponding path program 1 times [2021-10-13 00:01:58,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:58,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692948344] [2021-10-13 00:01:58,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:58,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:58,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:58,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:58,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692948344] [2021-10-13 00:01:58,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692948344] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:58,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:58,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:01:58,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409103448] [2021-10-13 00:01:58,587 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:01:58,588 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:01:58,588 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:01:58,588 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:01:58,588 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:01:58,588 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:58,588 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:01:58,589 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:01:58,589 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration5_Loop [2021-10-13 00:01:58,589 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:01:58,589 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:01:58,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:58,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:58,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:58,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:58,686 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:01:58,686 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:01:58,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:58,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:58,688 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:58,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:01:58,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:01:58,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:01:58,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:58,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:58,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:58,744 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:58,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:01:58,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:01:58,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:01:58,815 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:01:58,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:58,822 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:01:58,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:01:58,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:01:58,822 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:01:58,822 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:01:58,822 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:58,822 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:01:58,822 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:01:58,822 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration5_Loop [2021-10-13 00:01:58,822 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:01:58,822 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:01:58,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:58,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:58,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:58,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:58,936 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:01:58,937 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:01:58,938 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:58,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:58,943 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:58,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:01:58,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:58,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:01:58,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:01:58,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:01:58,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:01:58,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:01:58,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:01:58,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:01:58,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:01:59,006 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:01:59,010 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:01:59,010 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:01:59,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:59,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:59,012 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:59,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:01:59,016 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:01:59,016 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:01:59,017 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:01:59,017 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~r~0) = 1*ULTIMATE.start_main_~r~0 Supporting invariants [] [2021-10-13 00:01:59,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:59,036 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:01:59,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:59,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:01:59,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:01:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:59,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:01:59,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:01:59,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:59,187 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:01:59,187 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 65 states and 76 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:59,228 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 65 states and 76 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 125 states and 145 transitions. Complement of second has 4 states. [2021-10-13 00:01:59,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:01:59,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:59,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2021-10-13 00:01:59,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 76 transitions. Stem has 4 letters. Loop has 13 letters. [2021-10-13 00:01:59,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:01:59,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 76 transitions. Stem has 17 letters. Loop has 13 letters. [2021-10-13 00:01:59,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:01:59,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 76 transitions. Stem has 4 letters. Loop has 26 letters. [2021-10-13 00:01:59,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:01:59,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 145 transitions. [2021-10-13 00:01:59,238 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-13 00:01:59,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 120 states and 139 transitions. [2021-10-13 00:01:59,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-10-13 00:01:59,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2021-10-13 00:01:59,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 139 transitions. [2021-10-13 00:01:59,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:01:59,242 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 139 transitions. [2021-10-13 00:01:59,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 139 transitions. [2021-10-13 00:01:59,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2021-10-13 00:01:59,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.1596638655462186) internal successors, (138), 118 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:59,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2021-10-13 00:01:59,249 INFO L704 BuchiCegarLoop]: Abstraction has 119 states and 138 transitions. [2021-10-13 00:01:59,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:59,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:01:59,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:01:59,251 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:59,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:59,281 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2021-10-13 00:01:59,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:01:59,282 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 76 transitions. [2021-10-13 00:01:59,283 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2021-10-13 00:01:59,283 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 65 states and 75 transitions. [2021-10-13 00:01:59,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-10-13 00:01:59,284 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-10-13 00:01:59,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 75 transitions. [2021-10-13 00:01:59,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:01:59,284 INFO L681 BuchiCegarLoop]: Abstraction has 65 states and 75 transitions. [2021-10-13 00:01:59,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 75 transitions. [2021-10-13 00:01:59,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-10-13 00:01:59,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.1538461538461537) internal successors, (75), 64 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:59,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2021-10-13 00:01:59,288 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 75 transitions. [2021-10-13 00:01:59,288 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 75 transitions. [2021-10-13 00:01:59,289 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 00:01:59,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 75 transitions. [2021-10-13 00:01:59,289 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2021-10-13 00:01:59,289 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:01:59,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:01:59,290 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 00:01:59,290 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:59,290 INFO L791 eck$LassoCheckResult]: Stem: 1770#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(9); 1733#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 1734#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 1720#L30 assume main_~l~0 > 1;main_#t~post4 := main_~l~0;main_~l~0 := main_#t~post4 - 1;havoc main_#t~post4; 1721#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 1754#L38-2 [2021-10-13 00:01:59,291 INFO L793 eck$LassoCheckResult]: Loop: 1754#L38-2 assume !!(main_~j~0 <= main_~r~0); 1764#L39 assume !(main_~j~0 < main_~r~0); 1765#L39-1 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1735#L18-12 assume !(0 == __VERIFIER_assert_~cond); 1736#L18-14 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1771#L18-15 assume !(0 == __VERIFIER_assert_~cond); 1772#L18-17 assume 0 != main_#t~nondet7;havoc main_#t~nondet7; 1726#L38-3 assume !(main_~l~0 > 1);__VERIFIER_assert_#in~cond := (if 1 <= main_~r~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1727#L18-36 assume !(0 == __VERIFIER_assert_~cond); 1730#L18-38 __VERIFIER_assert_#in~cond := (if main_~r~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1731#L18-39 assume !(0 == __VERIFIER_assert_~cond); 1732#L18-41 main_#t~post9 := main_~r~0;main_~r~0 := main_#t~post9 - 1;havoc main_#t~post9; 1744#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 1754#L38-2 [2021-10-13 00:01:59,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:59,291 INFO L82 PathProgramCache]: Analyzing trace with hash 28695791, now seen corresponding path program 1 times [2021-10-13 00:01:59,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:59,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886574654] [2021-10-13 00:01:59,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:59,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:59,302 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:59,313 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:59,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:59,313 INFO L82 PathProgramCache]: Analyzing trace with hash 15893544, now seen corresponding path program 2 times [2021-10-13 00:01:59,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:59,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054493553] [2021-10-13 00:01:59,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:59,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:59,330 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:59,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:59,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:59,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1026319878, now seen corresponding path program 1 times [2021-10-13 00:01:59,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:59,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073227017] [2021-10-13 00:01:59,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:59,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:59,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:59,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:59,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073227017] [2021-10-13 00:01:59,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073227017] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:59,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:59,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:01:59,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156407290] [2021-10-13 00:01:59,600 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:01:59,601 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:01:59,601 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:01:59,601 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:01:59,601 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:01:59,601 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:59,601 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:01:59,601 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:01:59,602 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration6_Loop [2021-10-13 00:01:59,602 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:01:59,602 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:01:59,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:59,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:59,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:59,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:01:59,694 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:01:59,694 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:01:59,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:59,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:59,698 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:59,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:01:59,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:01:59,715 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:01:59,735 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:01:59,735 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet7=-1} Honda state: {ULTIMATE.start_main_#t~nondet7=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:01:59,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:59,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:59,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:59,769 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:59,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:01:59,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:01:59,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:01:59,815 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:01:59,815 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post9=0} Honda state: {ULTIMATE.start_main_#t~post9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:01:59,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:59,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:59,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:59,865 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:59,872 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:01:59,872 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:01:59,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:01:59,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:01:59,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:59,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:59,937 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:59,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:01:59,947 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:01:59,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:02:00,407 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:02:00,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:00,415 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:02:00,415 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:02:00,415 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:02:00,415 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:02:00,415 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:02:00,415 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:00,415 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:02:00,415 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:02:00,416 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration6_Loop [2021-10-13 00:02:00,416 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:02:00,416 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:02:00,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:00,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:00,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:00,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:00,519 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:02:00,519 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:02:00,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:00,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:00,527 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:00,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:02:00,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:00,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:00,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:00,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:00,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:00,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:00,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:00,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:00,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:00,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:00,577 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:00,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:00,577 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:00,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:02:00,579 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:00,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:00,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:00,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:00,586 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 00:02:00,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:00,586 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:02:00,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:00,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:00,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:00,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:00,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:00,607 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:00,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:02:00,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:00,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:00,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:00,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:00,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:00,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:00,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:00,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:00,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:00,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:00,661 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:00,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:00,662 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:00,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:02:00,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:00,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:00,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:00,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:00,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:00,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:00,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:00,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:00,697 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:02:00,703 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:02:00,703 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:02:00,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:00,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:00,711 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:00,714 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:02:00,714 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:02:00,714 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:02:00,714 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~r~0) = 1*ULTIMATE.start_main_~r~0 Supporting invariants [] [2021-10-13 00:02:00,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:02:00,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:00,738 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:02:00,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:00,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:00,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:00,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:02:00,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:00,873 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:02:00,873 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 65 states and 75 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:00,907 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 65 states and 75 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 129 states and 151 transitions. Complement of second has 6 states. [2021-10-13 00:02:00,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:02:00,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:00,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2021-10-13 00:02:00,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 5 letters. Loop has 13 letters. [2021-10-13 00:02:00,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:00,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 18 letters. Loop has 13 letters. [2021-10-13 00:02:00,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:00,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 5 letters. Loop has 26 letters. [2021-10-13 00:02:00,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:00,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 151 transitions. [2021-10-13 00:02:00,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-13 00:02:00,915 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 123 states and 144 transitions. [2021-10-13 00:02:00,915 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-10-13 00:02:00,915 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-10-13 00:02:00,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 144 transitions. [2021-10-13 00:02:00,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:02:00,918 INFO L681 BuchiCegarLoop]: Abstraction has 123 states and 144 transitions. [2021-10-13 00:02:00,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states and 144 transitions. [2021-10-13 00:02:00,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2021-10-13 00:02:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 121 states have (on average 1.165289256198347) internal successors, (141), 120 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2021-10-13 00:02:00,951 INFO L704 BuchiCegarLoop]: Abstraction has 121 states and 141 transitions. [2021-10-13 00:02:00,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:00,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:02:00,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:02:00,952 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:01,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:01,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:01,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:01,103 INFO L93 Difference]: Finished difference Result 402 states and 448 transitions. [2021-10-13 00:02:01,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 00:02:01,103 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 402 states and 448 transitions. [2021-10-13 00:02:01,105 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2021-10-13 00:02:01,108 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 402 states to 354 states and 396 transitions. [2021-10-13 00:02:01,108 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 89 [2021-10-13 00:02:01,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 89 [2021-10-13 00:02:01,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 354 states and 396 transitions. [2021-10-13 00:02:01,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:02:01,108 INFO L681 BuchiCegarLoop]: Abstraction has 354 states and 396 transitions. [2021-10-13 00:02:01,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states and 396 transitions. [2021-10-13 00:02:01,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 122. [2021-10-13 00:02:01,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 122 states have (on average 1.1639344262295082) internal successors, (142), 121 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:01,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 142 transitions. [2021-10-13 00:02:01,113 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 142 transitions. [2021-10-13 00:02:01,113 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 142 transitions. [2021-10-13 00:02:01,113 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 00:02:01,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 142 transitions. [2021-10-13 00:02:01,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-13 00:02:01,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:02:01,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:02:01,115 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:02:01,115 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:01,115 INFO L791 eck$LassoCheckResult]: Stem: 2579#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(9); 2538#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 2539#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 2528#L30 assume main_~l~0 > 1;main_#t~post4 := main_~l~0;main_~l~0 := main_#t~post4 - 1;havoc main_#t~post4; 2529#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 2557#L38-2 assume !!(main_~j~0 <= main_~r~0); 2565#L39 [2021-10-13 00:02:01,116 INFO L793 eck$LassoCheckResult]: Loop: 2565#L39 assume !(main_~j~0 < main_~r~0); 2566#L39-1 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2541#L18-12 assume !(0 == __VERIFIER_assert_~cond); 2542#L18-14 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2580#L18-15 assume !(0 == __VERIFIER_assert_~cond); 2581#L18-17 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;__VERIFIER_assert_#in~cond := (if 1 <= main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2553#L18-18 assume !(0 == __VERIFIER_assert_~cond); 2554#L18-20 __VERIFIER_assert_#in~cond := (if main_~i~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2571#L18-21 assume !(0 == __VERIFIER_assert_~cond); 2572#L18-23 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2575#L18-24 assume !(0 == __VERIFIER_assert_~cond); 2576#L18-26 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2593#L18-27 assume !(0 == __VERIFIER_assert_~cond); 2587#L18-29 main_~i~0 := main_~j~0;main_~j~0 := 2 * main_~j~0; 2559#L38-2 assume !!(main_~j~0 <= main_~r~0); 2565#L39 [2021-10-13 00:02:01,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:01,116 INFO L82 PathProgramCache]: Analyzing trace with hash 889569551, now seen corresponding path program 1 times [2021-10-13 00:02:01,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:01,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669797492] [2021-10-13 00:02:01,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:01,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:01,125 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:01,135 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:01,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:01,135 INFO L82 PathProgramCache]: Analyzing trace with hash -2032341595, now seen corresponding path program 1 times [2021-10-13 00:02:01,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:01,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295807733] [2021-10-13 00:02:01,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:01,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:01,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:01,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:01,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295807733] [2021-10-13 00:02:01,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295807733] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:01,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:02:01,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:02:01,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482578100] [2021-10-13 00:02:01,218 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:02:01,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:01,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:02:01,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:02:01,226 INFO L87 Difference]: Start difference. First operand 122 states and 142 transitions. cyclomatic complexity: 24 Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:01,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:01,364 INFO L93 Difference]: Finished difference Result 213 states and 239 transitions. [2021-10-13 00:02:01,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:02:01,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 213 states and 239 transitions. [2021-10-13 00:02:01,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-13 00:02:01,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 213 states to 199 states and 225 transitions. [2021-10-13 00:02:01,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-10-13 00:02:01,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-10-13 00:02:01,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 199 states and 225 transitions. [2021-10-13 00:02:01,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:02:01,372 INFO L681 BuchiCegarLoop]: Abstraction has 199 states and 225 transitions. [2021-10-13 00:02:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states and 225 transitions. [2021-10-13 00:02:01,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 164. [2021-10-13 00:02:01,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 164 states have (on average 1.1341463414634145) internal successors, (186), 163 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:01,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 186 transitions. [2021-10-13 00:02:01,379 INFO L704 BuchiCegarLoop]: Abstraction has 164 states and 186 transitions. [2021-10-13 00:02:01,379 INFO L587 BuchiCegarLoop]: Abstraction has 164 states and 186 transitions. [2021-10-13 00:02:01,379 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 00:02:01,380 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states and 186 transitions. [2021-10-13 00:02:01,383 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-13 00:02:01,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:02:01,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:02:01,385 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:02:01,385 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:01,385 INFO L791 eck$LassoCheckResult]: Stem: 2931#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 2890#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 2891#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 2880#L30 assume main_~l~0 > 1;main_#t~post4 := main_~l~0;main_~l~0 := main_#t~post4 - 1;havoc main_#t~post4; 2881#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 2908#L38-2 assume !!(main_~j~0 <= main_~r~0); 2918#L39 [2021-10-13 00:02:01,391 INFO L793 eck$LassoCheckResult]: Loop: 2918#L39 assume main_~j~0 < main_~r~0;__VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2919#L18 assume !(0 == __VERIFIER_assert_~cond); 2912#L18-2 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2913#L18-3 assume !(0 == __VERIFIER_assert_~cond); 2882#L18-5 __VERIFIER_assert_#in~cond := (if 1 <= 1 + main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2883#L18-6 assume !(0 == __VERIFIER_assert_~cond); 2897#L18-8 __VERIFIER_assert_#in~cond := (if 1 + main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2898#L18-9 assume !(0 == __VERIFIER_assert_~cond); 2942#L18-11 assume 0 != main_#t~nondet6;havoc main_#t~nondet6;main_~j~0 := 1 + main_~j~0; 2936#L39-1 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2893#L18-12 assume !(0 == __VERIFIER_assert_~cond); 2894#L18-14 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2932#L18-15 assume !(0 == __VERIFIER_assert_~cond); 2933#L18-17 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;__VERIFIER_assert_#in~cond := (if 1 <= main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2904#L18-18 assume !(0 == __VERIFIER_assert_~cond); 2905#L18-20 __VERIFIER_assert_#in~cond := (if main_~i~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2923#L18-21 assume !(0 == __VERIFIER_assert_~cond); 2924#L18-23 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2927#L18-24 assume !(0 == __VERIFIER_assert_~cond); 2928#L18-26 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2952#L18-27 assume !(0 == __VERIFIER_assert_~cond); 2945#L18-29 main_~i~0 := main_~j~0;main_~j~0 := 2 * main_~j~0; 2946#L38-2 assume !!(main_~j~0 <= main_~r~0); 2918#L39 [2021-10-13 00:02:01,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:01,392 INFO L82 PathProgramCache]: Analyzing trace with hash 889569551, now seen corresponding path program 2 times [2021-10-13 00:02:01,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:01,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065168495] [2021-10-13 00:02:01,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:01,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:01,408 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:01,428 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:01,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:01,430 INFO L82 PathProgramCache]: Analyzing trace with hash -20833724, now seen corresponding path program 1 times [2021-10-13 00:02:01,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:01,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992179151] [2021-10-13 00:02:01,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:01,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:01,469 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:01,485 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:01,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:01,486 INFO L82 PathProgramCache]: Analyzing trace with hash -387380874, now seen corresponding path program 1 times [2021-10-13 00:02:01,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:01,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146617161] [2021-10-13 00:02:01,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:01,487 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:01,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:01,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:01,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146617161] [2021-10-13 00:02:01,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146617161] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:02:01,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685958829] [2021-10-13 00:02:01,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:01,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:02:01,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:01,548 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:02:01,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-13 00:02:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:01,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:02:01,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:02,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:02,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685958829] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:02:02,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:02:02,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2021-10-13 00:02:02,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780358832] [2021-10-13 00:02:02,439 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:02:02,439 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:02:02,440 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:02:02,440 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:02:02,440 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:02:02,440 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:02,440 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:02:02,440 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:02:02,440 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration8_Loop [2021-10-13 00:02:02,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:02:02,441 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:02:02,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:02,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:02,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:02,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:02,521 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:02:02,521 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:02:02,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:02,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:02,522 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:02,527 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:02,527 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:02,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 00:02:02,545 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:02:02,545 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=-1} Honda state: {ULTIMATE.start_main_#t~nondet6=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:02:02,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:02,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:02,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:02,567 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:02,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 00:02:02,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:02,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:02,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:02,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:02,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:02,613 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:02,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 00:02:02,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:02:02,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:02,715 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:02:02,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:02,720 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:02:02,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:02:02,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:02:02,720 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:02:02,720 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:02:02,720 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:02,720 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:02:02,720 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:02:02,720 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration8_Loop [2021-10-13 00:02:02,720 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:02:02,720 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:02:02,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:02,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:02,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:02,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:02,805 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:02:02,805 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:02:02,805 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:02,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:02,807 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:02,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:02,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:02,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:02,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:02,818 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 00:02:02,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:02,819 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:02:02,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:02,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-13 00:02:02,828 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:02,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-13 00:02:02,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:02,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:02,852 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:02,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 00:02:02,854 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:02,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:02,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:02,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:02,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:02,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:02,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:02,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:02,884 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:02:02,889 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-13 00:02:02,889 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:02:02,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:02,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:02,890 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:02,891 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:02:02,891 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:02:02,891 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:02:02,891 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~r~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~r~0 - 2*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-10-13 00:02:02,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 00:02:02,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:02,913 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:02:02,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:02,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:02,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:02,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:02:02,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:03,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:03,193 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-13 00:02:03,193 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 164 states and 186 transitions. cyclomatic complexity: 26 Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:03,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:03,578 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 164 states and 186 transitions. cyclomatic complexity: 26. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 806 states and 891 transitions. Complement of second has 19 states. [2021-10-13 00:02:03,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 1 stem states 8 non-accepting loop states 1 accepting loop states [2021-10-13 00:02:03,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:03,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 92 transitions. [2021-10-13 00:02:03,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 92 transitions. Stem has 6 letters. Loop has 23 letters. [2021-10-13 00:02:03,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:03,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 92 transitions. Stem has 29 letters. Loop has 23 letters. [2021-10-13 00:02:03,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:03,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 92 transitions. Stem has 6 letters. Loop has 46 letters. [2021-10-13 00:02:03,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:03,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 806 states and 891 transitions. [2021-10-13 00:02:03,596 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-13 00:02:03,602 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 806 states to 576 states and 640 transitions. [2021-10-13 00:02:03,602 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-10-13 00:02:03,602 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-10-13 00:02:03,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 576 states and 640 transitions. [2021-10-13 00:02:03,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:02:03,604 INFO L681 BuchiCegarLoop]: Abstraction has 576 states and 640 transitions. [2021-10-13 00:02:03,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states and 640 transitions. [2021-10-13 00:02:03,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 396. [2021-10-13 00:02:03,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 396 states have (on average 1.1237373737373737) internal successors, (445), 395 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:03,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 445 transitions. [2021-10-13 00:02:03,616 INFO L704 BuchiCegarLoop]: Abstraction has 396 states and 445 transitions. [2021-10-13 00:02:03,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:03,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:02:03,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:02:03,617 INFO L87 Difference]: Start difference. First operand 396 states and 445 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:03,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:03,833 INFO L93 Difference]: Finished difference Result 548 states and 595 transitions. [2021-10-13 00:02:03,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 00:02:03,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 548 states and 595 transitions. [2021-10-13 00:02:03,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-13 00:02:03,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 548 states to 303 states and 341 transitions. [2021-10-13 00:02:03,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-13 00:02:03,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-13 00:02:03,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 303 states and 341 transitions. [2021-10-13 00:02:03,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:02:03,844 INFO L681 BuchiCegarLoop]: Abstraction has 303 states and 341 transitions. [2021-10-13 00:02:03,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states and 341 transitions. [2021-10-13 00:02:03,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 211. [2021-10-13 00:02:03,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 211 states have (on average 1.132701421800948) internal successors, (239), 210 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:03,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 239 transitions. [2021-10-13 00:02:03,850 INFO L704 BuchiCegarLoop]: Abstraction has 211 states and 239 transitions. [2021-10-13 00:02:03,851 INFO L587 BuchiCegarLoop]: Abstraction has 211 states and 239 transitions. [2021-10-13 00:02:03,851 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-13 00:02:03,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 239 transitions. [2021-10-13 00:02:03,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-13 00:02:03,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:02:03,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:02:03,854 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:03,854 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:03,854 INFO L791 eck$LassoCheckResult]: Stem: 5079#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(9); 5040#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 5041#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 5029#L30 assume main_~l~0 > 1;main_#t~post4 := main_~l~0;main_~l~0 := main_#t~post4 - 1;havoc main_#t~post4; 5030#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 5061#L38-2 assume !!(main_~j~0 <= main_~r~0); 5184#L39 assume !(main_~j~0 < main_~r~0); 5070#L39-1 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5044#L18-12 assume !(0 == __VERIFIER_assert_~cond); 5045#L18-14 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5082#L18-15 assume !(0 == __VERIFIER_assert_~cond); 5083#L18-17 assume 0 != main_#t~nondet7;havoc main_#t~nondet7; 5031#L38-3 assume main_~l~0 > 1;__VERIFIER_assert_#in~cond := (if 1 <= main_~l~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5032#L18-30 assume !(0 == __VERIFIER_assert_~cond); 5052#L18-32 __VERIFIER_assert_#in~cond := (if main_~l~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5027#L18-33 assume !(0 == __VERIFIER_assert_~cond); 5028#L18-35 main_#t~post8 := main_~l~0;main_~l~0 := main_#t~post8 - 1;havoc main_#t~post8; 5050#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 5089#L38-2 [2021-10-13 00:02:03,854 INFO L793 eck$LassoCheckResult]: Loop: 5089#L38-2 assume !!(main_~j~0 <= main_~r~0); 5067#L39 assume main_~j~0 < main_~r~0;__VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5068#L18 assume !(0 == __VERIFIER_assert_~cond); 5057#L18-2 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5058#L18-3 assume !(0 == __VERIFIER_assert_~cond); 5033#L18-5 __VERIFIER_assert_#in~cond := (if 1 <= 1 + main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5034#L18-6 assume !(0 == __VERIFIER_assert_~cond); 5046#L18-8 __VERIFIER_assert_#in~cond := (if 1 + main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5047#L18-9 assume !(0 == __VERIFIER_assert_~cond); 5091#L18-11 assume 0 != main_#t~nondet6;havoc main_#t~nondet6;main_~j~0 := 1 + main_~j~0; 5084#L39-1 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5042#L18-12 assume !(0 == __VERIFIER_assert_~cond); 5043#L18-14 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5080#L18-15 assume !(0 == __VERIFIER_assert_~cond); 5081#L18-17 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;__VERIFIER_assert_#in~cond := (if 1 <= main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5053#L18-18 assume !(0 == __VERIFIER_assert_~cond); 5054#L18-20 __VERIFIER_assert_#in~cond := (if main_~i~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5071#L18-21 assume !(0 == __VERIFIER_assert_~cond); 5072#L18-23 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5075#L18-24 assume !(0 == __VERIFIER_assert_~cond); 5076#L18-26 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 5099#L18-27 assume !(0 == __VERIFIER_assert_~cond); 5088#L18-29 main_~i~0 := main_~j~0;main_~j~0 := 2 * main_~j~0; 5089#L38-2 [2021-10-13 00:02:03,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:03,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1677155888, now seen corresponding path program 1 times [2021-10-13 00:02:03,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:03,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727103501] [2021-10-13 00:02:03,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:03,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:03,875 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:03,906 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:03,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:03,911 INFO L82 PathProgramCache]: Analyzing trace with hash 146732118, now seen corresponding path program 2 times [2021-10-13 00:02:03,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:03,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359363601] [2021-10-13 00:02:03,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:03,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:03,932 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:03,955 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:03,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:03,956 INFO L82 PathProgramCache]: Analyzing trace with hash 601078183, now seen corresponding path program 1 times [2021-10-13 00:02:03,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:03,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768636544] [2021-10-13 00:02:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:03,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:03,977 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:04,018 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:04,339 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:02:04,339 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:02:04,339 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:02:04,339 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:02:04,339 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:02:04,339 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:04,340 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:02:04,340 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:02:04,340 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration9_Loop [2021-10-13 00:02:04,340 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:02:04,340 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:02:04,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:04,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:04,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:04,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:04,448 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:02:04,448 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:02:04,448 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:04,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:04,454 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:04,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:04,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:04,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 00:02:04,482 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:02:04,483 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet7=0} Honda state: {ULTIMATE.start_main_#t~nondet7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:02:04,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-13 00:02:04,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:04,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:04,505 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:04,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 00:02:04,506 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:04,506 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:04,519 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:02:04,519 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:02:04,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:04,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:04,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:04,539 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:04,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 00:02:04,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:04,541 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:04,553 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:02:04,553 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=-1} Honda state: {ULTIMATE.start_main_#t~nondet6=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:02:04,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:04,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:04,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:04,574 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:04,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 00:02:04,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:04,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:04,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:04,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:04,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:04,622 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:04,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 00:02:04,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:02:04,623 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:04,781 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:02:04,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:04,784 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:02:04,784 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:02:04,784 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:02:04,784 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:02:04,784 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:02:04,784 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:04,784 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:02:04,784 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:02:04,784 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration9_Loop [2021-10-13 00:02:04,785 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:02:04,785 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:02:04,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:04,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:04,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:04,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:04,876 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:02:04,876 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:02:04,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:04,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:04,879 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:04,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:04,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:04,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:04,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:04,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:04,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:04,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:04,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:04,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 00:02:04,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:04,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:04,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:04,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:04,936 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:04,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:04,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 00:02:04,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:04,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:04,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:04,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:04,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:04,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:04,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:04,966 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:05,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:05,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:05,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:05,003 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:05,009 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:05,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:05,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:05,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:05,018 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 00:02:05,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:05,019 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:02:05,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:05,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 00:02:05,030 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:05,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:05,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:05,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:05,065 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:05,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-13 00:02:05,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:05,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:05,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:05,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:05,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:05,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:05,079 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:05,079 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:05,087 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:02:05,090 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-13 00:02:05,090 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:02:05,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:05,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:05,091 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:05,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-13 00:02:05,092 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:02:05,092 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:02:05,093 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:02:05,093 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~j~0) = 3*ULTIMATE.start_main_~n~0 - 2*ULTIMATE.start_main_~j~0 Supporting invariants [] [2021-10-13 00:02:05,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:05,116 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:02:05,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:05,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:05,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:05,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-13 00:02:05,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:05,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:05,729 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 10 loop predicates [2021-10-13 00:02:05,729 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 211 states and 239 transitions. cyclomatic complexity: 32 Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:06,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:06,349 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 211 states and 239 transitions. cyclomatic complexity: 32. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 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 405 states and 443 transitions. Complement of second has 25 states. [2021-10-13 00:02:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 11 non-accepting loop states 1 accepting loop states [2021-10-13 00:02:06,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:06,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 53 transitions. [2021-10-13 00:02:06,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 53 transitions. Stem has 18 letters. Loop has 23 letters. [2021-10-13 00:02:06,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:06,350 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:02:06,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:06,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:06,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:06,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-13 00:02:06,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:06,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:06,942 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 10 loop predicates [2021-10-13 00:02:06,942 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 211 states and 239 transitions. cyclomatic complexity: 32 Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:07,572 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 211 states and 239 transitions. cyclomatic complexity: 32. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 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 433 states and 473 transitions. Complement of second has 29 states. [2021-10-13 00:02:07,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 15 states 1 stem states 13 non-accepting loop states 1 accepting loop states [2021-10-13 00:02:07,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:07,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 64 transitions. [2021-10-13 00:02:07,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 64 transitions. Stem has 18 letters. Loop has 23 letters. [2021-10-13 00:02:07,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:07,573 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:02:07,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:07,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:07,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:07,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-13 00:02:07,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:08,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:08,170 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 10 loop predicates [2021-10-13 00:02:08,170 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 211 states and 239 transitions. cyclomatic complexity: 32 Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:08,737 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 211 states and 239 transitions. cyclomatic complexity: 32. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 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 757 states and 816 transitions. Complement of second has 24 states. [2021-10-13 00:02:08,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 11 non-accepting loop states 1 accepting loop states [2021-10-13 00:02:08,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:08,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 101 transitions. [2021-10-13 00:02:08,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 101 transitions. Stem has 18 letters. Loop has 23 letters. [2021-10-13 00:02:08,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:08,739 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:02:08,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:08,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:08,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:08,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-13 00:02:08,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:09,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:09,349 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 10 loop predicates [2021-10-13 00:02:09,349 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 211 states and 239 transitions. cyclomatic complexity: 32 Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:09,891 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 211 states and 239 transitions. cyclomatic complexity: 32. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 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 812 states and 890 transitions. Complement of second has 26 states. [2021-10-13 00:02:09,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 1 stem states 12 non-accepting loop states 1 accepting loop states [2021-10-13 00:02:09,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:09,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 103 transitions. [2021-10-13 00:02:09,899 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 103 transitions. Stem has 18 letters. Loop has 23 letters. [2021-10-13 00:02:09,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:09,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 103 transitions. Stem has 41 letters. Loop has 23 letters. [2021-10-13 00:02:09,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:09,901 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 103 transitions. Stem has 18 letters. Loop has 46 letters. [2021-10-13 00:02:09,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:09,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 812 states and 890 transitions. [2021-10-13 00:02:09,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-13 00:02:09,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 812 states to 568 states and 630 transitions. [2021-10-13 00:02:09,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2021-10-13 00:02:09,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-10-13 00:02:09,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 568 states and 630 transitions. [2021-10-13 00:02:09,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:02:09,915 INFO L681 BuchiCegarLoop]: Abstraction has 568 states and 630 transitions. [2021-10-13 00:02:09,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states and 630 transitions. [2021-10-13 00:02:09,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 384. [2021-10-13 00:02:09,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 384 states have (on average 1.1276041666666667) internal successors, (433), 383 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:09,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 433 transitions. [2021-10-13 00:02:09,929 INFO L704 BuchiCegarLoop]: Abstraction has 384 states and 433 transitions. [2021-10-13 00:02:09,930 INFO L587 BuchiCegarLoop]: Abstraction has 384 states and 433 transitions. [2021-10-13 00:02:09,930 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-13 00:02:09,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 384 states and 433 transitions. [2021-10-13 00:02:09,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-13 00:02:09,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:02:09,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:02:09,934 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:09,934 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:09,935 INFO L791 eck$LassoCheckResult]: Stem: 8423#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(9); 8378#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 8379#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 8367#L30 assume main_~l~0 > 1;main_#t~post4 := main_~l~0;main_~l~0 := main_#t~post4 - 1;havoc main_#t~post4; 8368#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 8401#L38-2 assume !!(main_~j~0 <= main_~r~0); 8435#L39 assume !(main_~j~0 < main_~r~0); 8422#L39-1 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8382#L18-12 assume !(0 == __VERIFIER_assert_~cond); 8383#L18-14 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8429#L18-15 assume !(0 == __VERIFIER_assert_~cond); 8746#L18-17 assume 0 != main_#t~nondet7;havoc main_#t~nondet7; 8496#L38-3 assume main_~l~0 > 1;__VERIFIER_assert_#in~cond := (if 1 <= main_~l~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8391#L18-30 assume !(0 == __VERIFIER_assert_~cond); 8392#L18-32 __VERIFIER_assert_#in~cond := (if main_~l~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8365#L18-33 assume !(0 == __VERIFIER_assert_~cond); 8366#L18-35 main_#t~post8 := main_~l~0;main_~l~0 := main_#t~post8 - 1;havoc main_#t~post8; 8466#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 8464#L38-2 assume !!(main_~j~0 <= main_~r~0); 8460#L39 assume main_~j~0 < main_~r~0;__VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8444#L18 assume !(0 == __VERIFIER_assert_~cond); 8445#L18-2 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8408#L18-3 assume !(0 == __VERIFIER_assert_~cond); 8369#L18-5 __VERIFIER_assert_#in~cond := (if 1 <= 1 + main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8370#L18-6 assume !(0 == __VERIFIER_assert_~cond); 8384#L18-8 __VERIFIER_assert_#in~cond := (if 1 + main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8385#L18-9 assume !(0 == __VERIFIER_assert_~cond); 8437#L18-11 assume !(0 != main_#t~nondet6);havoc main_#t~nondet6; 8428#L39-1 [2021-10-13 00:02:09,935 INFO L793 eck$LassoCheckResult]: Loop: 8428#L39-1 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8380#L18-12 assume !(0 == __VERIFIER_assert_~cond); 8381#L18-14 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8424#L18-15 assume !(0 == __VERIFIER_assert_~cond); 8425#L18-17 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;__VERIFIER_assert_#in~cond := (if 1 <= main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8393#L18-18 assume !(0 == __VERIFIER_assert_~cond); 8394#L18-20 __VERIFIER_assert_#in~cond := (if main_~i~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8411#L18-21 assume !(0 == __VERIFIER_assert_~cond); 8412#L18-23 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8415#L18-24 assume !(0 == __VERIFIER_assert_~cond); 8416#L18-26 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8453#L18-27 assume !(0 == __VERIFIER_assert_~cond); 8440#L18-29 main_~i~0 := main_~j~0;main_~j~0 := 2 * main_~j~0; 8441#L38-2 assume !!(main_~j~0 <= main_~r~0); 8458#L39 assume main_~j~0 < main_~r~0;__VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8459#L18 assume !(0 == __VERIFIER_assert_~cond); 8397#L18-2 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8398#L18-3 assume !(0 == __VERIFIER_assert_~cond); 8457#L18-5 __VERIFIER_assert_#in~cond := (if 1 <= 1 + main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8404#L18-6 assume !(0 == __VERIFIER_assert_~cond); 8405#L18-8 __VERIFIER_assert_#in~cond := (if 1 + main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 8456#L18-9 assume !(0 == __VERIFIER_assert_~cond); 8455#L18-11 assume 0 != main_#t~nondet6;havoc main_#t~nondet6;main_~j~0 := 1 + main_~j~0; 8428#L39-1 [2021-10-13 00:02:09,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:09,935 INFO L82 PathProgramCache]: Analyzing trace with hash 870747555, now seen corresponding path program 1 times [2021-10-13 00:02:09,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:09,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166540136] [2021-10-13 00:02:09,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:09,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:09,949 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:09,962 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:09,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:09,963 INFO L82 PathProgramCache]: Analyzing trace with hash 739173976, now seen corresponding path program 3 times [2021-10-13 00:02:09,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:09,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158501272] [2021-10-13 00:02:09,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:09,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:09,977 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:09,986 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:09,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:09,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1242964598, now seen corresponding path program 1 times [2021-10-13 00:02:09,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:09,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775297559] [2021-10-13 00:02:09,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:09,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:10,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:02:10,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775297559] [2021-10-13 00:02:10,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775297559] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:02:10,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876564148] [2021-10-13 00:02:10,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:10,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:02:10,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:10,091 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:02:10,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-13 00:02:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:10,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:02:10,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:10,734 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:10,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876564148] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:02:10,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:02:10,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-13 00:02:10,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336321042] [2021-10-13 00:02:11,033 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:02:11,033 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:02:11,033 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:02:11,033 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:02:11,033 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:02:11,033 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:11,033 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:02:11,033 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:02:11,034 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration10_Loop [2021-10-13 00:02:11,034 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:02:11,034 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:02:11,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:11,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:11,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:11,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:11,127 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:02:11,127 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:02:11,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:11,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:11,131 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:11,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:11,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:11,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-13 00:02:11,159 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:02:11,159 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet7=0} Honda state: {ULTIMATE.start_main_#t~nondet7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:02:11,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:11,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:11,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:11,199 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:11,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:11,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:11,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-13 00:02:11,221 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:02:11,222 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:02:11,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:11,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:11,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:11,264 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:11,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:11,307 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:11,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-13 00:02:11,335 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:02:11,335 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=-1} Honda state: {ULTIMATE.start_main_#t~nondet6=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:02:11,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:11,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:11,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:11,371 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:11,374 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:11,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:11,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-13 00:02:11,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-13 00:02:11,419 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:11,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:11,420 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:11,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-13 00:02:11,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:02:11,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:11,503 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:02:11,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:11,507 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:02:11,507 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:02:11,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:02:11,507 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:02:11,508 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:02:11,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:11,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:02:11,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:02:11,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration10_Loop [2021-10-13 00:02:11,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:02:11,508 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:02:11,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:11,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:11,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:11,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:11,598 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:02:11,598 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:02:11,598 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:11,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:11,599 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:11,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-13 00:02:11,600 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:11,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:11,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:11,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:11,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:11,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:11,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:11,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:11,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:11,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:11,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:11,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:11,653 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:11,659 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:11,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:11,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:11,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:11,669 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 00:02:11,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:11,670 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:02:11,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:11,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-13 00:02:11,686 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:11,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:11,722 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:11,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:11,723 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:11,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:11,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-13 00:02:11,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:11,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:11,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:11,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:11,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:11,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:11,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:11,754 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:11,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-13 00:02:11,784 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:11,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:11,786 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:11,787 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:11,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-13 00:02:11,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:11,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:11,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:11,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:11,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:11,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:11,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:11,800 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:02:11,804 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-13 00:02:11,804 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:02:11,805 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:11,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:11,805 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:11,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-13 00:02:11,806 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:02:11,807 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:02:11,807 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:02:11,807 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~n~0) = -4*ULTIMATE.start_main_~j~0 + 3*ULTIMATE.start_main_~n~0 Supporting invariants [] [2021-10-13 00:02:11,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-13 00:02:11,827 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:02:11,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:11,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:11,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:11,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 00:02:11,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:12,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:12,217 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-13 00:02:12,217 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 384 states and 433 transitions. cyclomatic complexity: 54 Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:12,611 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 384 states and 433 transitions. cyclomatic complexity: 54. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1275 states and 1405 transitions. Complement of second has 19 states. [2021-10-13 00:02:12,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 1 stem states 8 non-accepting loop states 1 accepting loop states [2021-10-13 00:02:12,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:12,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 162 transitions. [2021-10-13 00:02:12,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 162 transitions. Stem has 28 letters. Loop has 23 letters. [2021-10-13 00:02:12,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:12,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 162 transitions. Stem has 51 letters. Loop has 23 letters. [2021-10-13 00:02:12,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:12,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 162 transitions. Stem has 28 letters. Loop has 46 letters. [2021-10-13 00:02:12,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:12,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1275 states and 1405 transitions. [2021-10-13 00:02:12,621 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-10-13 00:02:12,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1275 states to 1091 states and 1206 transitions. [2021-10-13 00:02:12,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2021-10-13 00:02:12,630 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2021-10-13 00:02:12,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1091 states and 1206 transitions. [2021-10-13 00:02:12,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:02:12,630 INFO L681 BuchiCegarLoop]: Abstraction has 1091 states and 1206 transitions. [2021-10-13 00:02:12,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states and 1206 transitions. [2021-10-13 00:02:12,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 783. [2021-10-13 00:02:12,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 783 states have (on average 1.1174968071519795) internal successors, (875), 782 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:12,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 875 transitions. [2021-10-13 00:02:12,649 INFO L704 BuchiCegarLoop]: Abstraction has 783 states and 875 transitions. [2021-10-13 00:02:12,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:02:12,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 00:02:12,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:02:12,650 INFO L87 Difference]: Start difference. First operand 783 states and 875 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 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) [2021-10-13 00:02:12,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:13,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:02:13,119 INFO L93 Difference]: Finished difference Result 2011 states and 2199 transitions. [2021-10-13 00:02:13,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 00:02:13,119 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2011 states and 2199 transitions. [2021-10-13 00:02:13,134 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-10-13 00:02:13,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2011 states to 1679 states and 1839 transitions. [2021-10-13 00:02:13,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2021-10-13 00:02:13,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2021-10-13 00:02:13,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1679 states and 1839 transitions. [2021-10-13 00:02:13,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:02:13,147 INFO L681 BuchiCegarLoop]: Abstraction has 1679 states and 1839 transitions. [2021-10-13 00:02:13,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states and 1839 transitions. [2021-10-13 00:02:13,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 965. [2021-10-13 00:02:13,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 965 states have (on average 1.1139896373056994) internal successors, (1075), 964 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:13,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1075 transitions. [2021-10-13 00:02:13,175 INFO L704 BuchiCegarLoop]: Abstraction has 965 states and 1075 transitions. [2021-10-13 00:02:13,175 INFO L587 BuchiCegarLoop]: Abstraction has 965 states and 1075 transitions. [2021-10-13 00:02:13,176 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-13 00:02:13,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 965 states and 1075 transitions. [2021-10-13 00:02:13,181 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-10-13 00:02:13,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:02:13,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:02:13,185 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:13,185 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:13,187 INFO L791 eck$LassoCheckResult]: Stem: 13260#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(9); 13220#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 13221#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 13209#L30 assume main_~l~0 > 1;main_#t~post4 := main_~l~0;main_~l~0 := main_#t~post4 - 1;havoc main_#t~post4; 13210#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 13238#L38-2 assume !!(main_~j~0 <= main_~r~0); 13580#L39 assume main_~j~0 < main_~r~0;__VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13725#L18 assume !(0 == __VERIFIER_assert_~cond); 13729#L18-2 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13730#L18-3 assume !(0 == __VERIFIER_assert_~cond); 13705#L18-5 __VERIFIER_assert_#in~cond := (if 1 <= 1 + main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13706#L18-6 assume !(0 == __VERIFIER_assert_~cond); 13679#L18-8 __VERIFIER_assert_#in~cond := (if 1 + main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13680#L18-9 assume !(0 == __VERIFIER_assert_~cond); 13603#L18-11 assume !(0 != main_#t~nondet6);havoc main_#t~nondet6; 13604#L39-1 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 14125#L18-12 assume !(0 == __VERIFIER_assert_~cond); 14124#L18-14 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 14122#L18-15 assume !(0 == __VERIFIER_assert_~cond); 14123#L18-17 assume 0 != main_#t~nondet7;havoc main_#t~nondet7; 13754#L38-3 assume main_~l~0 > 1;__VERIFIER_assert_#in~cond := (if 1 <= main_~l~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13752#L18-30 assume !(0 == __VERIFIER_assert_~cond); 13749#L18-32 __VERIFIER_assert_#in~cond := (if main_~l~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13747#L18-33 assume !(0 == __VERIFIER_assert_~cond); 13483#L18-35 main_#t~post8 := main_~l~0;main_~l~0 := main_#t~post8 - 1;havoc main_#t~post8; 13454#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 13450#L38-2 assume !!(main_~j~0 <= main_~r~0); 13448#L39 assume main_~j~0 < main_~r~0;__VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13283#L18 assume !(0 == __VERIFIER_assert_~cond); 13241#L18-2 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13242#L18-3 assume !(0 == __VERIFIER_assert_~cond); 13213#L18-5 __VERIFIER_assert_#in~cond := (if 1 <= 1 + main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13214#L18-6 assume !(0 == __VERIFIER_assert_~cond); 13226#L18-8 __VERIFIER_assert_#in~cond := (if 1 + main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13227#L18-9 assume !(0 == __VERIFIER_assert_~cond); 13276#L18-11 assume !(0 != main_#t~nondet6);havoc main_#t~nondet6; 13267#L39-1 [2021-10-13 00:02:13,187 INFO L793 eck$LassoCheckResult]: Loop: 13267#L39-1 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13268#L18-12 assume !(0 == __VERIFIER_assert_~cond); 13437#L18-14 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13261#L18-15 assume !(0 == __VERIFIER_assert_~cond); 13262#L18-17 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;__VERIFIER_assert_#in~cond := (if 1 <= main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13289#L18-18 assume !(0 == __VERIFIER_assert_~cond); 13435#L18-20 __VERIFIER_assert_#in~cond := (if main_~i~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13434#L18-21 assume !(0 == __VERIFIER_assert_~cond); 13433#L18-23 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13432#L18-24 assume !(0 == __VERIFIER_assert_~cond); 13431#L18-26 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13430#L18-27 assume !(0 == __VERIFIER_assert_~cond); 13429#L18-29 main_~i~0 := main_~j~0;main_~j~0 := 2 * main_~j~0; 13428#L38-2 assume !!(main_~j~0 <= main_~r~0); 13427#L39 assume main_~j~0 < main_~r~0;__VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13426#L18 assume !(0 == __VERIFIER_assert_~cond); 13425#L18-2 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13424#L18-3 assume !(0 == __VERIFIER_assert_~cond); 13423#L18-5 __VERIFIER_assert_#in~cond := (if 1 <= 1 + main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13422#L18-6 assume !(0 == __VERIFIER_assert_~cond); 13421#L18-8 __VERIFIER_assert_#in~cond := (if 1 + main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13420#L18-9 assume !(0 == __VERIFIER_assert_~cond); 13419#L18-11 assume 0 != main_#t~nondet6;havoc main_#t~nondet6;main_~j~0 := 1 + main_~j~0; 13267#L39-1 [2021-10-13 00:02:13,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:13,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1634846562, now seen corresponding path program 1 times [2021-10-13 00:02:13,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:13,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454447882] [2021-10-13 00:02:13,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:13,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:13,207 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:13,225 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:13,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:13,226 INFO L82 PathProgramCache]: Analyzing trace with hash 739173976, now seen corresponding path program 4 times [2021-10-13 00:02:13,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:13,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140454574] [2021-10-13 00:02:13,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:13,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:13,246 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:13,257 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:13,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:13,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1847878103, now seen corresponding path program 1 times [2021-10-13 00:02:13,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:13,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842349907] [2021-10-13 00:02:13,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:13,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:13,274 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:13,299 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:13,528 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:02:13,528 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:02:13,528 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:02:13,528 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:02:13,528 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:02:13,528 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:13,528 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:02:13,528 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:02:13,529 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration11_Loop [2021-10-13 00:02:13,529 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:02:13,529 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:02:13,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:13,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:13,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:13,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:13,590 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:02:13,590 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:02:13,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:13,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:13,591 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:13,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-13 00:02:13,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:13,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:13,606 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:02:13,606 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=-1} Honda state: {ULTIMATE.start_main_#t~nondet6=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:02:13,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-13 00:02:13,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:13,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:13,625 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:13,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-13 00:02:13,626 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:13,626 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:13,639 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:02:13,639 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:02:13,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-13 00:02:13,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:13,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:13,658 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:13,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-13 00:02:13,659 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:13,659 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:13,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:13,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:13,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:13,691 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:13,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-13 00:02:13,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:02:13,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:13,779 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:02:13,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:13,781 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:02:13,781 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:02:13,781 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:02:13,782 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:02:13,782 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:02:13,782 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:13,782 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:02:13,782 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:02:13,782 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration11_Loop [2021-10-13 00:02:13,782 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:02:13,782 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:02:13,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:13,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:13,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:13,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:13,847 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:02:13,847 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:02:13,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:13,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:13,850 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:13,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-13 00:02:13,851 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:13,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:13,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:13,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:13,859 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 00:02:13,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:13,859 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:02:13,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:13,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:13,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:13,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:13,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:13,880 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:13,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-13 00:02:13,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:13,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:13,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:13,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:13,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:13,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:13,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:13,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:13,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:13,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:13,909 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:13,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:13,910 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:13,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-13 00:02:13,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:13,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:13,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:13,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:13,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:13,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:13,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:13,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:13,930 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:02:13,934 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-13 00:02:13,934 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:02:13,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:13,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:13,947 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:13,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-13 00:02:13,948 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:02:13,948 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:02:13,948 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:02:13,948 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~r~0) = -3*ULTIMATE.start_main_~j~0 + 2*ULTIMATE.start_main_~r~0 Supporting invariants [] [2021-10-13 00:02:13,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:13,979 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:02:13,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:14,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:14,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:14,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:02:14,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:14,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:14,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:14,350 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-13 00:02:14,350 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 965 states and 1075 transitions. cyclomatic complexity: 127 Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:14,692 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 965 states and 1075 transitions. cyclomatic complexity: 127. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1816 states and 1978 transitions. Complement of second has 21 states. [2021-10-13 00:02:14,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 9 non-accepting loop states 1 accepting loop states [2021-10-13 00:02:14,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:14,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 159 transitions. [2021-10-13 00:02:14,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 159 transitions. Stem has 36 letters. Loop has 23 letters. [2021-10-13 00:02:14,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:14,693 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:02:14,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:14,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:14,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:14,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:02:14,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:15,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:15,051 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-13 00:02:15,051 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 965 states and 1075 transitions. cyclomatic complexity: 127 Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:15,362 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 965 states and 1075 transitions. cyclomatic complexity: 127. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1815 states and 1978 transitions. Complement of second has 21 states. [2021-10-13 00:02:15,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 9 non-accepting loop states 1 accepting loop states [2021-10-13 00:02:15,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:15,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 159 transitions. [2021-10-13 00:02:15,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 159 transitions. Stem has 36 letters. Loop has 23 letters. [2021-10-13 00:02:15,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:15,363 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:02:15,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:15,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:15,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:15,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:02:15,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:15,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:15,720 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-13 00:02:15,720 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 965 states and 1075 transitions. cyclomatic complexity: 127 Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:16,094 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 965 states and 1075 transitions. cyclomatic complexity: 127. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 2357 states and 2561 transitions. Complement of second has 32 states. [2021-10-13 00:02:16,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 9 non-accepting loop states 1 accepting loop states [2021-10-13 00:02:16,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:16,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 160 transitions. [2021-10-13 00:02:16,095 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 160 transitions. Stem has 36 letters. Loop has 23 letters. [2021-10-13 00:02:16,095 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:16,095 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 160 transitions. Stem has 59 letters. Loop has 23 letters. [2021-10-13 00:02:16,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:16,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 160 transitions. Stem has 36 letters. Loop has 46 letters. [2021-10-13 00:02:16,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:16,097 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2357 states and 2561 transitions. [2021-10-13 00:02:16,114 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-10-13 00:02:16,125 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2357 states to 1581 states and 1731 transitions. [2021-10-13 00:02:16,125 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2021-10-13 00:02:16,125 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115 [2021-10-13 00:02:16,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1581 states and 1731 transitions. [2021-10-13 00:02:16,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:02:16,126 INFO L681 BuchiCegarLoop]: Abstraction has 1581 states and 1731 transitions. [2021-10-13 00:02:16,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states and 1731 transitions. [2021-10-13 00:02:16,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 785. [2021-10-13 00:02:16,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 785 states have (on average 1.110828025477707) internal successors, (872), 784 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:16,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 872 transitions. [2021-10-13 00:02:16,148 INFO L704 BuchiCegarLoop]: Abstraction has 785 states and 872 transitions. [2021-10-13 00:02:16,148 INFO L587 BuchiCegarLoop]: Abstraction has 785 states and 872 transitions. [2021-10-13 00:02:16,148 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-13 00:02:16,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 785 states and 872 transitions. [2021-10-13 00:02:16,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-13 00:02:16,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:02:16,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:02:16,153 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:16,153 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:02:16,153 INFO L791 eck$LassoCheckResult]: Stem: 20879#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(9); 20841#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 20842#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 20830#L30 assume main_~l~0 > 1;main_#t~post4 := main_~l~0;main_~l~0 := main_#t~post4 - 1;havoc main_#t~post4; 20831#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 20863#L38-2 assume !!(main_~j~0 <= main_~r~0); 20992#L39 assume main_~j~0 < main_~r~0;__VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20993#L18 assume !(0 == __VERIFIER_assert_~cond); 21586#L18-2 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 21585#L18-3 assume !(0 == __VERIFIER_assert_~cond); 21584#L18-5 __VERIFIER_assert_#in~cond := (if 1 <= 1 + main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 21583#L18-6 assume !(0 == __VERIFIER_assert_~cond); 20849#L18-8 __VERIFIER_assert_#in~cond := (if 1 + main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20850#L18-9 assume !(0 == __VERIFIER_assert_~cond); 20903#L18-11 assume 0 != main_#t~nondet6;havoc main_#t~nondet6;main_~j~0 := 1 + main_~j~0; 20904#L39-1 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 21612#L18-12 assume !(0 == __VERIFIER_assert_~cond); 21611#L18-14 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 21610#L18-15 assume !(0 == __VERIFIER_assert_~cond); 21003#L18-17 assume 0 != main_#t~nondet7;havoc main_#t~nondet7; 20836#L38-3 assume main_~l~0 > 1;__VERIFIER_assert_#in~cond := (if 1 <= main_~l~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20837#L18-30 assume !(0 == __VERIFIER_assert_~cond); 20977#L18-32 __VERIFIER_assert_#in~cond := (if main_~l~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20976#L18-33 assume !(0 == __VERIFIER_assert_~cond); 20973#L18-35 main_#t~post8 := main_~l~0;main_~l~0 := main_#t~post8 - 1;havoc main_#t~post8; 20944#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 20942#L38-2 assume !!(main_~j~0 <= main_~r~0); 20939#L39 assume main_~j~0 < main_~r~0;__VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20938#L18 assume !(0 == __VERIFIER_assert_~cond); 20937#L18-2 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20936#L18-3 assume !(0 == __VERIFIER_assert_~cond); 20935#L18-5 __VERIFIER_assert_#in~cond := (if 1 <= 1 + main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20934#L18-6 assume !(0 == __VERIFIER_assert_~cond); 20847#L18-8 __VERIFIER_assert_#in~cond := (if 1 + main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20848#L18-9 assume !(0 == __VERIFIER_assert_~cond); 20901#L18-11 assume !(0 != main_#t~nondet6);havoc main_#t~nondet6; 20902#L39-1 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20843#L18-12 [2021-10-13 00:02:16,154 INFO L793 eck$LassoCheckResult]: Loop: 20843#L18-12 assume !(0 == __VERIFIER_assert_~cond); 20844#L18-14 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20881#L18-15 assume !(0 == __VERIFIER_assert_~cond); 20882#L18-17 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;__VERIFIER_assert_#in~cond := (if 1 <= main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20855#L18-18 assume !(0 == __VERIFIER_assert_~cond); 20856#L18-20 __VERIFIER_assert_#in~cond := (if main_~i~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20867#L18-21 assume !(0 == __VERIFIER_assert_~cond); 20868#L18-23 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20871#L18-24 assume !(0 == __VERIFIER_assert_~cond); 20872#L18-26 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20908#L18-27 assume !(0 == __VERIFIER_assert_~cond); 20892#L18-29 main_~i~0 := main_~j~0;main_~j~0 := 2 * main_~j~0; 20893#L38-2 assume !!(main_~j~0 <= main_~r~0); 20875#L39 assume main_~j~0 < main_~r~0;__VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20876#L18 assume !(0 == __VERIFIER_assert_~cond); 20859#L18-2 __VERIFIER_assert_#in~cond := (if main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20860#L18-3 assume !(0 == __VERIFIER_assert_~cond); 20832#L18-5 __VERIFIER_assert_#in~cond := (if 1 <= 1 + main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20833#L18-6 assume !(0 == __VERIFIER_assert_~cond); 20865#L18-8 __VERIFIER_assert_#in~cond := (if 1 + main_~j~0 <= main_~n~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20896#L18-9 assume !(0 == __VERIFIER_assert_~cond); 20897#L18-11 assume !(0 != main_#t~nondet6);havoc main_#t~nondet6; 20885#L39-1 __VERIFIER_assert_#in~cond := (if 1 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 20843#L18-12 [2021-10-13 00:02:16,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:16,154 INFO L82 PathProgramCache]: Analyzing trace with hash 946074286, now seen corresponding path program 1 times [2021-10-13 00:02:16,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:16,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436694142] [2021-10-13 00:02:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:16,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:16,167 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:16,180 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:16,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:16,180 INFO L82 PathProgramCache]: Analyzing trace with hash 354378664, now seen corresponding path program 1 times [2021-10-13 00:02:16,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:16,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092987617] [2021-10-13 00:02:16,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:16,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:16,191 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:16,203 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:16,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:16,204 INFO L82 PathProgramCache]: Analyzing trace with hash -478626213, now seen corresponding path program 2 times [2021-10-13 00:02:16,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:02:16,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507844757] [2021-10-13 00:02:16,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:02:16,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:02:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:16,218 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:02:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:02:16,236 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:16,551 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:02:16,551 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:02:16,551 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:02:16,551 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:02:16,551 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:02:16,551 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:16,551 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:02:16,551 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:02:16,551 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration12_Loop [2021-10-13 00:02:16,551 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:02:16,551 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:02:16,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:16,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:16,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:16,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:16,638 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:02:16,638 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:02:16,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:16,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:16,641 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:16,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-13 00:02:16,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:16,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:16,656 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:02:16,656 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:02:16,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:16,675 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:16,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:16,676 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:16,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-13 00:02:16,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:16,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:16,685 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:02:16,685 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet7=0} Honda state: {ULTIMATE.start_main_#t~nondet7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:02:16,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:16,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:16,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:16,705 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:16,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-13 00:02:16,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:02:16,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:16,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-10-13 00:02:16,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:16,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:16,738 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:16,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-13 00:02:16,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:02:16,740 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:02:16,848 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:02:16,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:16,851 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:02:16,851 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:02:16,851 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:02:16,851 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:02:16,851 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:02:16,852 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:16,852 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:02:16,852 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:02:16,852 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration12_Loop [2021-10-13 00:02:16,852 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:02:16,852 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:02:16,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:16,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:16,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:16,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:02:16,934 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:02:16,934 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:02:16,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:16,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:16,935 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:16,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-13 00:02:16,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:16,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:16,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:16,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:16,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:16,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:16,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:16,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:16,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:16,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:16,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:16,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:16,966 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:16,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-13 00:02:16,969 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:16,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:16,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:16,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:16,976 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 00:02:16,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:16,977 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:02:16,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:16,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:02:16,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:16,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:16,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:17,000 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:17,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-13 00:02:17,001 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:02:17,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:02:17,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:02:17,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:02:17,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:02:17,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:02:17,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:02:17,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:02:17,012 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:02:17,014 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:02:17,014 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:02:17,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:02:17,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:02:17,015 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:02:17,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-13 00:02:17,016 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:02:17,016 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:02:17,016 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:02:17,016 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~n~0) = -2*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2021-10-13 00:02:17,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:17,036 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:02:17,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:17,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:17,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:17,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 00:02:17,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:17,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:17,424 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-13 00:02:17,424 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 785 states and 872 transitions. cyclomatic complexity: 97 Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:17,581 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 785 states and 872 transitions. cyclomatic complexity: 97. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 1143 states and 1254 transitions. Complement of second has 15 states. [2021-10-13 00:02:17,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2021-10-13 00:02:17,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:17,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 58 transitions. [2021-10-13 00:02:17,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 58 transitions. Stem has 37 letters. Loop has 23 letters. [2021-10-13 00:02:17,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:17,582 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:02:17,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:17,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:17,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:17,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 00:02:17,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:17,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:18,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:18,003 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-13 00:02:18,003 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 785 states and 872 transitions. cyclomatic complexity: 97 Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:18,175 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 785 states and 872 transitions. cyclomatic complexity: 97. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 1143 states and 1254 transitions. Complement of second has 15 states. [2021-10-13 00:02:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2021-10-13 00:02:18,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:18,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 58 transitions. [2021-10-13 00:02:18,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 58 transitions. Stem has 37 letters. Loop has 23 letters. [2021-10-13 00:02:18,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:18,176 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:02:18,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:02:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:18,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:02:18,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:02:18,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 00:02:18,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:02:18,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:02:18,578 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-13 00:02:18,578 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 785 states and 872 transitions. cyclomatic complexity: 97 Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:18,796 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 785 states and 872 transitions. cyclomatic complexity: 97. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 2401 states and 2589 transitions. Complement of second has 44 states. [2021-10-13 00:02:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2021-10-13 00:02:18,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:02:18,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 124 transitions. [2021-10-13 00:02:18,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 124 transitions. Stem has 37 letters. Loop has 23 letters. [2021-10-13 00:02:18,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:18,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 124 transitions. Stem has 60 letters. Loop has 23 letters. [2021-10-13 00:02:18,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:18,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 124 transitions. Stem has 37 letters. Loop has 46 letters. [2021-10-13 00:02:18,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:02:18,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2401 states and 2589 transitions. [2021-10-13 00:02:18,820 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:02:18,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2401 states to 0 states and 0 transitions. [2021-10-13 00:02:18,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:02:18,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:02:18,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:02:18,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:02:18,821 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:02:18,821 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:02:18,821 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:02:18,821 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-13 00:02:18,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:02:18,822 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:02:18,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:02:18,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:02:18 BoogieIcfgContainer [2021-10-13 00:02:18,827 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:02:18,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:02:18,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:02:18,828 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:02:18,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:54" (3/4) ... [2021-10-13 00:02:18,831 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:02:18,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:02:18,833 INFO L168 Benchmark]: Toolchain (without parser) took 24882.11 ms. Allocated memory was 96.5 MB in the beginning and 264.2 MB in the end (delta: 167.8 MB). Free memory was 60.3 MB in the beginning and 163.5 MB in the end (delta: -103.2 MB). Peak memory consumption was 64.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:18,833 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 68.9 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:02:18,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.26 ms. Allocated memory is still 96.5 MB. Free memory was 60.0 MB in the beginning and 70.9 MB in the end (delta: -10.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:18,834 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.32 ms. Allocated memory is still 96.5 MB. Free memory was 70.9 MB in the beginning and 69.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:18,834 INFO L168 Benchmark]: Boogie Preprocessor took 26.72 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 67.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:18,835 INFO L168 Benchmark]: RCFGBuilder took 421.78 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 55.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:18,835 INFO L168 Benchmark]: BuchiAutomizer took 24106.81 ms. Allocated memory was 96.5 MB in the beginning and 264.2 MB in the end (delta: 167.8 MB). Free memory was 55.6 MB in the beginning and 164.5 MB in the end (delta: -108.9 MB). Peak memory consumption was 59.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:18,836 INFO L168 Benchmark]: Witness Printer took 3.88 ms. Allocated memory is still 264.2 MB. Free memory was 164.5 MB in the beginning and 163.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:02:18,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 68.9 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 279.26 ms. Allocated memory is still 96.5 MB. Free memory was 60.0 MB in the beginning and 70.9 MB in the end (delta: -10.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.32 ms. Allocated memory is still 96.5 MB. Free memory was 70.9 MB in the beginning and 69.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.72 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 67.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 421.78 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 55.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 24106.81 ms. Allocated memory was 96.5 MB in the beginning and 264.2 MB in the end (delta: 167.8 MB). Free memory was 55.6 MB in the beginning and 164.5 MB in the end (delta: -108.9 MB). Peak memory consumption was 59.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.88 ms. Allocated memory is still 264.2 MB. Free memory was 164.5 MB in the beginning and 163.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 18 terminating modules (9 trivial, 6 deterministic, 3 nondeterministic). One deterministic module has affine ranking function l and consists of 4 locations. One deterministic module has affine ranking function l and consists of 4 locations. One deterministic module has affine ranking function r and consists of 3 locations. One deterministic module has affine ranking function r and consists of 4 locations. One deterministic module has affine ranking function r + -2 * j and consists of 10 locations. One deterministic module has affine ranking function 3 * n + -4 * j and consists of 10 locations. One nondeterministic module has affine ranking function 3 * n + -2 * j and consists of 14 locations. One nondeterministic module has affine ranking function -3 * j + 2 * r and consists of 11 locations. One nondeterministic module has affine ranking function n + -2 * j and consists of 9 locations. 9 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 24.0s and 13 iterations. TraceHistogramMax:2. Analysis of lassos took 11.1s. Construction of modules took 2.5s. Büchi inclusion checks took 9.6s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 15. Automata minimization 211.2ms AutomataMinimizationTime, 17 MinimizatonAttempts, 2814 StatesRemovedByMinimization, 15 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had 965 states and ocurred in iteration 10. Nontrivial modules had stage [6, 0, 2, 1, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1375 SDtfs, 2525 SDslu, 1926 SDs, 0 SdLazy, 3201 SolverSat, 412 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2579.2ms Time LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT3 conc0 concLT6 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital39 mio100 ax100 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq149 hnf94 smp98 dnf100 smp100 tf105 neg99 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 00:02:18,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-10-13 00:02:19,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2021-10-13 00:02:19,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b855b82a-471d-4e94-a46a-c0f4c4f2fb3e/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...