./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/heapsort.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg --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 8e7c8e5dc2a9e8f11b25d1bb9948f05f37b9553e3dc9f8bd8213088dea43cb37 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:41:36,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:41:36,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:41:36,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:41:36,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:41:36,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:41:36,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:41:36,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:41:36,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:41:36,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:41:36,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:41:36,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:41:36,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:41:36,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:41:36,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:41:36,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:41:36,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:41:36,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:41:36,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:41:36,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:41:36,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:41:36,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:41:36,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:41:36,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:41:36,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:41:36,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:41:36,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:41:36,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:41:36,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:41:36,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:41:36,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:41:36,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:41:36,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:41:36,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:41:36,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:41:36,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:41:36,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:41:36,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:41:36,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:41:36,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:41:36,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:41:36,330 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:41:36,386 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:41:36,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:41:36,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:41:36,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:41:36,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:41:36,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:41:36,398 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:41:36,398 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:41:36,399 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:41:36,399 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:41:36,400 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:41:36,400 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:41:36,401 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:41:36,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:41:36,401 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:41:36,402 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:41:36,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:41:36,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:41:36,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:41:36,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:41:36,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:41:36,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:41:36,404 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:41:36,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:41:36,405 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:41:36,405 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:41:36,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:41:36,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:41:36,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:41:36,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:41:36,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:41:36,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:41:36,411 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:41:36,411 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_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e7c8e5dc2a9e8f11b25d1bb9948f05f37b9553e3dc9f8bd8213088dea43cb37 [2021-10-28 08:41:36,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:41:36,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:41:36,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:41:36,862 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:41:36,864 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:41:36,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/loop-invgen/heapsort.i [2021-10-28 08:41:36,960 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/data/9a9b7f92e/e9cc7c4213f44166956243bafd87022b/FLAGe973c8442 [2021-10-28 08:41:37,518 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:41:37,525 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/sv-benchmarks/c/loop-invgen/heapsort.i [2021-10-28 08:41:37,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/data/9a9b7f92e/e9cc7c4213f44166956243bafd87022b/FLAGe973c8442 [2021-10-28 08:41:37,837 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/data/9a9b7f92e/e9cc7c4213f44166956243bafd87022b [2021-10-28 08:41:37,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:41:37,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:41:37,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:41:37,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:41:37,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:41:37,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:41:37" (1/1) ... [2021-10-28 08:41:37,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e79f856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:37, skipping insertion in model container [2021-10-28 08:41:37,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:41:37" (1/1) ... [2021-10-28 08:41:37,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:41:37,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:41:38,108 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_279fe9ba-333c-4f70-b4a7-3f58b36c444f/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2021-10-28 08:41:38,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:41:38,152 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:41:38,167 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_279fe9ba-333c-4f70-b4a7-3f58b36c444f/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2021-10-28 08:41:38,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:41:38,190 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:41:38,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:38 WrapperNode [2021-10-28 08:41:38,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:41:38,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:41:38,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:41:38,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:41:38,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:38" (1/1) ... [2021-10-28 08:41:38,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:38" (1/1) ... [2021-10-28 08:41:38,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:41:38,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:41:38,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:41:38,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:41:38,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:38" (1/1) ... [2021-10-28 08:41:38,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:38" (1/1) ... [2021-10-28 08:41:38,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:38" (1/1) ... [2021-10-28 08:41:38,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:38" (1/1) ... [2021-10-28 08:41:38,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:38" (1/1) ... [2021-10-28 08:41:38,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:38" (1/1) ... [2021-10-28 08:41:38,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:38" (1/1) ... [2021-10-28 08:41:38,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:41:38,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:41:38,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:41:38,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:41:38,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:38" (1/1) ... [2021-10-28 08:41:38,318 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:38,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:38,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:38,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:41:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:41:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:41:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:41:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:41:38,786 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:41:38,787 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-10-28 08:41:38,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:41:38 BoogieIcfgContainer [2021-10-28 08:41:38,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:41:38,791 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:41:38,791 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:41:38,795 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:41:38,796 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:41:38,797 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:41:37" (1/3) ... [2021-10-28 08:41:38,799 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a69f385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:41:38, skipping insertion in model container [2021-10-28 08:41:38,799 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:41:38,799 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:38" (2/3) ... [2021-10-28 08:41:38,800 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a69f385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:41:38, skipping insertion in model container [2021-10-28 08:41:38,800 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:41:38,801 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:41:38" (3/3) ... [2021-10-28 08:41:38,802 INFO L389 chiAutomizerObserver]: Analyzing ICFG heapsort.i [2021-10-28 08:41:38,855 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:41:38,855 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:41:38,855 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:41:38,856 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:41:38,856 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:41:38,856 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:41:38,856 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:41:38,856 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:41:38,878 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) [2021-10-28 08:41:38,908 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2021-10-28 08:41:38,908 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:38,908 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:38,918 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 08:41:38,918 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:38,918 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:41:38,919 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) [2021-10-28 08:41:38,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2021-10-28 08:41:38,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:38,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:38,929 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 08:41:38,929 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:38,936 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 [2021-10-28 08:41:38,936 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 [2021-10-28 08:41:38,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:38,944 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-10-28 08:41:38,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:38,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204945200] [2021-10-28 08:41:38,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:38,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:39,100 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:39,146 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:39,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:39,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1007028738, now seen corresponding path program 1 times [2021-10-28 08:41:39,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:39,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858741590] [2021-10-28 08:41:39,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:39,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:39,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:39,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:39,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858741590] [2021-10-28 08:41:39,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858741590] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:39,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:39,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:41:39,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853551610] [2021-10-28 08:41:39,239 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:41:39,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:39,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:41:39,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:41:39,264 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) [2021-10-28 08:41:39,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:39,280 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2021-10-28 08:41:39,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:41:39,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 62 transitions. [2021-10-28 08:41:39,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2021-10-28 08:41:39,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 37 states and 43 transitions. [2021-10-28 08:41:39,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-10-28 08:41:39,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-10-28 08:41:39,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 43 transitions. [2021-10-28 08:41:39,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:41:39,309 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-10-28 08:41:39,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 43 transitions. [2021-10-28 08:41:39,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-28 08:41:39,345 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) [2021-10-28 08:41:39,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2021-10-28 08:41:39,348 INFO L704 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-10-28 08:41:39,349 INFO L587 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-10-28 08:41:39,349 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:41:39,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 43 transitions. [2021-10-28 08:41:39,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2021-10-28 08:41:39,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:39,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:39,353 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 08:41:39,353 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:39,353 INFO L791 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 129#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 130#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 120#L30 assume !(main_~l~0 > 1);main_#t~post5 := main_~r~0;main_~r~0 := main_#t~post5 - 1;havoc main_#t~post5; 121#L59-1 [2021-10-28 08:41:39,354 INFO L793 eck$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 [2021-10-28 08:41:39,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:39,355 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2021-10-28 08:41:39,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:39,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978315412] [2021-10-28 08:41:39,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:39,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:39,376 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:39,402 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:39,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:39,404 INFO L85 PathProgramCache]: Analyzing trace with hash -147559562, now seen corresponding path program 1 times [2021-10-28 08:41:39,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:39,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690215110] [2021-10-28 08:41:39,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:39,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:39,416 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:39,429 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:39,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:39,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1812261295, now seen corresponding path program 1 times [2021-10-28 08:41:39,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:39,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930151688] [2021-10-28 08:41:39,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:39,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:39,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:39,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:39,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930151688] [2021-10-28 08:41:39,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930151688] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:39,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:39,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:41:39,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090994164] [2021-10-28 08:41:39,802 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:39,802 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:39,802 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:39,803 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:39,803 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:39,803 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:39,803 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:39,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:39,803 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration2_Loop [2021-10-28 08:41:39,804 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:39,804 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:39,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:39,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:39,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:39,954 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:39,963 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:39,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:39,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:39,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:39,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:39,970 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:39,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:41:40,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:40,037 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:40,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:40,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:40,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:40,045 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:40,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:41:40,352 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:40,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-28 08:41:40,356 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:40,357 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:40,357 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:40,357 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:40,357 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:40,357 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:40,357 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:40,357 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:40,357 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration2_Loop [2021-10-28 08:41:40,358 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:40,358 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:40,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:40,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:40,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:40,450 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:40,454 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:40,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:40,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:40,460 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:40,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:41:40,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:40,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:40,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:40,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:40,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:40,481 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:40,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:40,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:41:40,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:40,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:40,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:40,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:40,548 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:40,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:41:40,555 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 [2021-10-28 08:41:40,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:40,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:40,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:40,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:40,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:40,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:40,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:40,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:40,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:40,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:40,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:40,623 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:40,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 08:41:40,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:41:40,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:40,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:40,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:40,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:40,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:40,643 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:40,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:40,655 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:40,663 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:41:40,663 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:41:40,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:40,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:40,667 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:40,672 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:40,672 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:40,672 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:40,673 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~l~0) = 1*ULTIMATE.start_main_~l~0 Supporting invariants [] [2021-10-28 08:41:40,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 08:41:40,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:40,713 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:40,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:40,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:40,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:40,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:40,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:40,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:40,883 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 [2021-10-28 08:41:40,884 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) [2021-10-28 08:41:40,950 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. [2021-10-28 08:41:40,951 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 [2021-10-28 08:41:40,952 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) [2021-10-28 08:41:40,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2021-10-28 08:41:40,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 4 letters. Loop has 7 letters. [2021-10-28 08:41:40,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:40,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 11 letters. Loop has 7 letters. [2021-10-28 08:41:40,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:40,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 4 letters. Loop has 14 letters. [2021-10-28 08:41:40,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:40,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 124 transitions. [2021-10-28 08:41:40,959 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2021-10-28 08:41:40,960 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 102 states and 120 transitions. [2021-10-28 08:41:40,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2021-10-28 08:41:40,961 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2021-10-28 08:41:40,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 120 transitions. [2021-10-28 08:41:40,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:40,962 INFO L681 BuchiCegarLoop]: Abstraction has 102 states and 120 transitions. [2021-10-28 08:41:40,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 120 transitions. [2021-10-28 08:41:40,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2021-10-28 08:41:40,969 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) [2021-10-28 08:41:40,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2021-10-28 08:41:40,970 INFO L704 BuchiCegarLoop]: Abstraction has 101 states and 118 transitions. [2021-10-28 08:41:40,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:40,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:41:40,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:40,971 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) [2021-10-28 08:41:40,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:40,988 INFO L93 Difference]: Finished difference Result 121 states and 140 transitions. [2021-10-28 08:41:40,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:41:40,989 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 140 transitions. [2021-10-28 08:41:40,992 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 87 [2021-10-28 08:41:40,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 92 states and 106 transitions. [2021-10-28 08:41:40,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2021-10-28 08:41:40,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2021-10-28 08:41:40,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 106 transitions. [2021-10-28 08:41:40,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:41:40,995 INFO L681 BuchiCegarLoop]: Abstraction has 92 states and 106 transitions. [2021-10-28 08:41:40,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 106 transitions. [2021-10-28 08:41:40,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 62. [2021-10-28 08:41:41,000 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) [2021-10-28 08:41:41,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2021-10-28 08:41:41,001 INFO L704 BuchiCegarLoop]: Abstraction has 62 states and 72 transitions. [2021-10-28 08:41:41,001 INFO L587 BuchiCegarLoop]: Abstraction has 62 states and 72 transitions. [2021-10-28 08:41:41,001 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:41:41,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 72 transitions. [2021-10-28 08:41:41,002 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 58 [2021-10-28 08:41:41,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:41,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:41,003 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 08:41:41,003 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:41,003 INFO L791 eck$LassoCheckResult]: Stem: 572#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 551#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 552#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 542#L30 assume main_~l~0 > 1;main_#t~post4 := main_~l~0;main_~l~0 := main_#t~post4 - 1;havoc main_#t~post4; 543#L59-1 [2021-10-28 08:41:41,003 INFO L793 eck$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 [2021-10-28 08:41:41,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:41,004 INFO L85 PathProgramCache]: Analyzing trace with hash 925670, now seen corresponding path program 1 times [2021-10-28 08:41:41,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:41,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618572485] [2021-10-28 08:41:41,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:41,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:41,052 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:41,089 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:41,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:41,094 INFO L85 PathProgramCache]: Analyzing trace with hash -147559562, now seen corresponding path program 2 times [2021-10-28 08:41:41,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:41,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:41,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544320104] [2021-10-28 08:41:41,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:41,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:41,120 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:41,129 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:41,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:41,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1673359375, now seen corresponding path program 1 times [2021-10-28 08:41:41,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:41,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806005317] [2021-10-28 08:41:41,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:41,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:41,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:41,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:41,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806005317] [2021-10-28 08:41:41,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806005317] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:41,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:41,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:41:41,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546414322] [2021-10-28 08:41:41,344 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:41,344 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:41,344 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:41,344 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:41,344 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:41,344 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:41,344 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:41,345 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:41,345 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration3_Loop [2021-10-28 08:41:41,345 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:41,345 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:41,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:41,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:41,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:41,452 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:41,452 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:41,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:41,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:41,455 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:41,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:41,460 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:41,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 08:41:41,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:41,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:41,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:41,528 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:41,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:41,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:41,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 08:41:41,858 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:41,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:41,861 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:41,861 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:41,861 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:41,861 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:41,862 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:41,862 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:41,862 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:41,862 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:41,862 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration3_Loop [2021-10-28 08:41:41,862 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:41,862 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:41,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:41,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:41,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:41,969 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:41,969 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:41,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:41,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:41,972 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:41,984 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 [2021-10-28 08:41:41,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:41,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:41,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:41,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:41,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:42,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:42,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:42,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 08:41:42,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:42,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:42,058 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:42,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:42,063 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:42,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 08:41:42,069 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 [2021-10-28 08:41:42,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:42,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:42,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:42,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:42,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:42,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:42,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:42,094 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:42,099 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:41:42,099 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:41:42,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:42,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:42,119 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:42,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 08:41:42,143 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:42,143 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:42,143 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:42,143 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~l~0) = 1*ULTIMATE.start_main_~l~0 Supporting invariants [] [2021-10-28 08:41:42,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:42,195 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:42,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:42,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:42,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:42,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:42,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:42,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:42,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:42,351 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 [2021-10-28 08:41:42,351 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) [2021-10-28 08:41:42,382 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. [2021-10-28 08:41:42,383 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 [2021-10-28 08:41:42,383 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) [2021-10-28 08:41:42,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2021-10-28 08:41:42,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 77 transitions. Stem has 4 letters. Loop has 7 letters. [2021-10-28 08:41:42,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:42,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 77 transitions. Stem has 11 letters. Loop has 7 letters. [2021-10-28 08:41:42,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:42,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 77 transitions. Stem has 4 letters. Loop has 14 letters. [2021-10-28 08:41:42,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:42,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 175 transitions. [2021-10-28 08:41:42,389 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 81 [2021-10-28 08:41:42,391 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 117 states and 137 transitions. [2021-10-28 08:41:42,391 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 87 [2021-10-28 08:41:42,392 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 88 [2021-10-28 08:41:42,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 117 states and 137 transitions. [2021-10-28 08:41:42,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:42,392 INFO L681 BuchiCegarLoop]: Abstraction has 117 states and 137 transitions. [2021-10-28 08:41:42,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states and 137 transitions. [2021-10-28 08:41:42,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 63. [2021-10-28 08:41:42,399 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) [2021-10-28 08:41:42,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2021-10-28 08:41:42,400 INFO L704 BuchiCegarLoop]: Abstraction has 63 states and 74 transitions. [2021-10-28 08:41:42,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:42,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:41:42,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:41:42,401 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) [2021-10-28 08:41:42,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:42,580 INFO L93 Difference]: Finished difference Result 195 states and 219 transitions. [2021-10-28 08:41:42,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:41:42,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 219 transitions. [2021-10-28 08:41:42,586 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 119 [2021-10-28 08:41:42,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 195 states and 219 transitions. [2021-10-28 08:41:42,589 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 146 [2021-10-28 08:41:42,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 146 [2021-10-28 08:41:42,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 219 transitions. [2021-10-28 08:41:42,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:42,591 INFO L681 BuchiCegarLoop]: Abstraction has 195 states and 219 transitions. [2021-10-28 08:41:42,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 219 transitions. [2021-10-28 08:41:42,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 65. [2021-10-28 08:41:42,597 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) [2021-10-28 08:41:42,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2021-10-28 08:41:42,598 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-10-28 08:41:42,598 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-10-28 08:41:42,598 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 08:41:42,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 76 transitions. [2021-10-28 08:41:42,600 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2021-10-28 08:41:42,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:42,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:42,600 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 08:41:42,600 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:42,601 INFO L791 eck$LassoCheckResult]: Stem: 1126#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 1089#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 1090#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 1075#L30 assume !(main_~l~0 > 1);main_#t~post5 := main_~r~0;main_~r~0 := main_#t~post5 - 1;havoc main_#t~post5; 1077#L59-1 [2021-10-28 08:41:42,601 INFO L793 eck$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 [2021-10-28 08:41:42,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:42,601 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 3 times [2021-10-28 08:41:42,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:42,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530831604] [2021-10-28 08:41:42,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:42,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:42,617 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:42,634 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:42,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:42,634 INFO L85 PathProgramCache]: Analyzing trace with hash -126564852, now seen corresponding path program 1 times [2021-10-28 08:41:42,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:42,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969937195] [2021-10-28 08:41:42,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:42,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:42,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:42,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969937195] [2021-10-28 08:41:42,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969937195] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:42,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:42,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:41:42,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539061373] [2021-10-28 08:41:42,676 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:41:42,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:42,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:41:42,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:41:42,678 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) [2021-10-28 08:41:42,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:42,756 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2021-10-28 08:41:42,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:41:42,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 138 transitions. [2021-10-28 08:41:42,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 57 [2021-10-28 08:41:42,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 120 states and 137 transitions. [2021-10-28 08:41:42,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2021-10-28 08:41:42,773 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2021-10-28 08:41:42,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 137 transitions. [2021-10-28 08:41:42,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:42,773 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 137 transitions. [2021-10-28 08:41:42,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 137 transitions. [2021-10-28 08:41:42,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 65. [2021-10-28 08:41:42,786 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) [2021-10-28 08:41:42,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2021-10-28 08:41:42,791 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-10-28 08:41:42,791 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-10-28 08:41:42,791 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 08:41:42,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 76 transitions. [2021-10-28 08:41:42,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2021-10-28 08:41:42,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:42,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:42,793 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 08:41:42,794 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:42,794 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 [2021-10-28 08:41:42,795 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 [2021-10-28 08:41:42,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:42,798 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 4 times [2021-10-28 08:41:42,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:42,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402263631] [2021-10-28 08:41:42,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:42,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:42,816 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:42,832 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:42,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:42,833 INFO L85 PathProgramCache]: Analyzing trace with hash 831355200, now seen corresponding path program 1 times [2021-10-28 08:41:42,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:42,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866128884] [2021-10-28 08:41:42,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:42,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:42,850 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:42,866 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:42,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:42,867 INFO L85 PathProgramCache]: Analyzing trace with hash -490035015, now seen corresponding path program 1 times [2021-10-28 08:41:42,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:42,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572095603] [2021-10-28 08:41:42,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:42,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:42,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:42,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572095603] [2021-10-28 08:41:42,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572095603] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:42,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:42,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:41:42,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147334883] [2021-10-28 08:41:43,123 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:43,124 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:43,124 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:43,124 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:43,125 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:43,125 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:43,125 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:43,125 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:43,126 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration5_Loop [2021-10-28 08:41:43,126 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:43,126 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:43,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:43,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:43,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:43,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:43,242 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:43,242 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:43,242 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:43,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:43,247 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:43,254 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:43,254 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:43,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 08:41:43,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:43,318 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:43,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:43,319 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:43,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:43,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:43,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 08:41:43,399 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:43,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:43,407 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:43,407 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:43,407 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:43,407 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:43,407 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:43,407 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:43,407 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:43,407 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:43,407 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration5_Loop [2021-10-28 08:41:43,408 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:43,408 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:43,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:43,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:43,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:43,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:43,534 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:43,534 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:43,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:43,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:43,539 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:43,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 08:41:43,541 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 [2021-10-28 08:41:43,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:43,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:43,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:43,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:43,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:43,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:43,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:43,566 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:43,571 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:41:43,571 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:41:43,571 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:43,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:43,572 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:43,583 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:43,583 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:43,584 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:43,584 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~r~0) = 1*ULTIMATE.start_main_~r~0 Supporting invariants [] [2021-10-28 08:41:43,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 08:41:43,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:43,617 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:43,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:43,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:43,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:43,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:43,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:43,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:43,790 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 [2021-10-28 08:41:43,790 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) [2021-10-28 08:41:43,832 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. [2021-10-28 08:41:43,833 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 [2021-10-28 08:41:43,833 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) [2021-10-28 08:41:43,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2021-10-28 08:41:43,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 76 transitions. Stem has 4 letters. Loop has 13 letters. [2021-10-28 08:41:43,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:43,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 76 transitions. Stem has 17 letters. Loop has 13 letters. [2021-10-28 08:41:43,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:43,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 76 transitions. Stem has 4 letters. Loop has 26 letters. [2021-10-28 08:41:43,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:43,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 145 transitions. [2021-10-28 08:41:43,840 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-28 08:41:43,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 120 states and 139 transitions. [2021-10-28 08:41:43,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-10-28 08:41:43,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2021-10-28 08:41:43,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 139 transitions. [2021-10-28 08:41:43,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:43,843 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 139 transitions. [2021-10-28 08:41:43,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 139 transitions. [2021-10-28 08:41:43,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2021-10-28 08:41:43,862 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) [2021-10-28 08:41:43,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2021-10-28 08:41:43,863 INFO L704 BuchiCegarLoop]: Abstraction has 119 states and 138 transitions. [2021-10-28 08:41:43,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:43,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:41:43,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:41:43,864 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) [2021-10-28 08:41:43,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:43,908 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2021-10-28 08:41:43,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:41:43,908 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 76 transitions. [2021-10-28 08:41:43,910 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2021-10-28 08:41:43,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 65 states and 75 transitions. [2021-10-28 08:41:43,911 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-10-28 08:41:43,911 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-10-28 08:41:43,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 75 transitions. [2021-10-28 08:41:43,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:43,912 INFO L681 BuchiCegarLoop]: Abstraction has 65 states and 75 transitions. [2021-10-28 08:41:43,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 75 transitions. [2021-10-28 08:41:43,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-10-28 08:41:43,916 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) [2021-10-28 08:41:43,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2021-10-28 08:41:43,918 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 75 transitions. [2021-10-28 08:41:43,918 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 75 transitions. [2021-10-28 08:41:43,918 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 08:41:43,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 75 transitions. [2021-10-28 08:41:43,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2021-10-28 08:41:43,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:43,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:43,920 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 08:41:43,920 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:43,920 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 [2021-10-28 08:41:43,920 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 [2021-10-28 08:41:43,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:43,921 INFO L85 PathProgramCache]: Analyzing trace with hash 28695791, now seen corresponding path program 1 times [2021-10-28 08:41:43,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:43,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599980968] [2021-10-28 08:41:43,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:43,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:43,945 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:43,973 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:43,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:43,973 INFO L85 PathProgramCache]: Analyzing trace with hash 15893544, now seen corresponding path program 2 times [2021-10-28 08:41:43,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:43,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886194623] [2021-10-28 08:41:43,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:43,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:43,996 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:44,012 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:44,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:44,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1026319878, now seen corresponding path program 1 times [2021-10-28 08:41:44,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:44,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746955781] [2021-10-28 08:41:44,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:44,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:44,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:44,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:44,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746955781] [2021-10-28 08:41:44,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746955781] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:44,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:44,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:41:44,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427275385] [2021-10-28 08:41:44,282 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:44,282 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:44,282 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:44,282 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:44,282 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:44,283 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:44,283 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:44,283 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:44,283 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration6_Loop [2021-10-28 08:41:44,283 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:44,283 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:44,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:44,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:44,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:44,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:44,379 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:44,379 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:44,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:44,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:44,387 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:44,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:44,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:44,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 08:41:44,410 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:44,410 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: [] [2021-10-28 08:41:44,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-10-28 08:41:44,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:44,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:44,438 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:44,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 08:41:44,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:44,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:44,456 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:44,456 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: [] [2021-10-28 08:41:44,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:44,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:44,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:44,484 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:44,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 08:41:44,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:44,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:44,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:44,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:44,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:44,546 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:44,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 08:41:44,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:44,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:45,023 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:45,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:45,031 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:45,031 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:45,031 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:45,031 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:45,031 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:45,031 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:45,032 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:45,032 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:45,032 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration6_Loop [2021-10-28 08:41:45,032 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:45,032 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:45,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:45,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:45,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:45,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:45,197 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:45,197 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:45,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:45,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:45,201 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:45,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:45,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 08:41:45,218 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 [2021-10-28 08:41:45,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:45,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:45,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:45,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:45,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:45,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:45,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:45,251 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:45,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:45,288 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:45,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:45,289 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:45,291 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 [2021-10-28 08:41:45,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:45,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:45,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:45,300 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 08:41:45,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:45,303 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:41:45,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:45,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 08:41:45,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:45,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-28 08:41:45,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:45,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:45,339 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:45,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 08:41:45,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:41:45,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:45,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:45,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:45,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:45,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:45,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:45,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:45,371 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:45,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:45,409 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:45,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:45,410 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:45,413 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 [2021-10-28 08:41:45,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:45,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:45,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:45,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:45,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:45,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 08:41:45,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:45,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:45,443 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:45,457 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:41:45,457 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:41:45,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:45,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:45,458 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:45,460 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:45,461 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:45,461 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:45,461 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~r~0) = 1*ULTIMATE.start_main_~r~0 Supporting invariants [] [2021-10-28 08:41:45,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 08:41:45,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:45,499 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:45,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:45,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:45,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:45,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:41:45,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:45,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:45,634 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 [2021-10-28 08:41:45,634 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) [2021-10-28 08:41:45,668 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. [2021-10-28 08:41:45,669 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 [2021-10-28 08:41:45,669 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) [2021-10-28 08:41:45,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2021-10-28 08:41:45,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 5 letters. Loop has 13 letters. [2021-10-28 08:41:45,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:45,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 18 letters. Loop has 13 letters. [2021-10-28 08:41:45,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:45,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 5 letters. Loop has 26 letters. [2021-10-28 08:41:45,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:45,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 151 transitions. [2021-10-28 08:41:45,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 08:41:45,678 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 123 states and 144 transitions. [2021-10-28 08:41:45,678 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-10-28 08:41:45,678 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-10-28 08:41:45,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 144 transitions. [2021-10-28 08:41:45,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:45,681 INFO L681 BuchiCegarLoop]: Abstraction has 123 states and 144 transitions. [2021-10-28 08:41:45,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states and 144 transitions. [2021-10-28 08:41:45,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2021-10-28 08:41:45,692 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) [2021-10-28 08:41:45,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2021-10-28 08:41:45,695 INFO L704 BuchiCegarLoop]: Abstraction has 121 states and 141 transitions. [2021-10-28 08:41:45,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:45,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:41:45,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:41:45,698 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) [2021-10-28 08:41:45,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:45,846 INFO L93 Difference]: Finished difference Result 402 states and 448 transitions. [2021-10-28 08:41:45,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:41:45,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 402 states and 448 transitions. [2021-10-28 08:41:45,851 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2021-10-28 08:41:45,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 402 states to 354 states and 396 transitions. [2021-10-28 08:41:45,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 89 [2021-10-28 08:41:45,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 89 [2021-10-28 08:41:45,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 354 states and 396 transitions. [2021-10-28 08:41:45,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:45,855 INFO L681 BuchiCegarLoop]: Abstraction has 354 states and 396 transitions. [2021-10-28 08:41:45,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states and 396 transitions. [2021-10-28 08:41:45,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 122. [2021-10-28 08:41:45,860 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) [2021-10-28 08:41:45,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 142 transitions. [2021-10-28 08:41:45,861 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 142 transitions. [2021-10-28 08:41:45,861 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 142 transitions. [2021-10-28 08:41:45,861 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 08:41:45,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 142 transitions. [2021-10-28 08:41:45,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 08:41:45,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:45,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:45,863 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:41:45,863 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:45,863 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 [2021-10-28 08:41:45,864 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 [2021-10-28 08:41:45,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:45,864 INFO L85 PathProgramCache]: Analyzing trace with hash 889569551, now seen corresponding path program 1 times [2021-10-28 08:41:45,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:45,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121680702] [2021-10-28 08:41:45,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:45,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:45,874 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:45,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:45,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:45,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2032341595, now seen corresponding path program 1 times [2021-10-28 08:41:45,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:45,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686777776] [2021-10-28 08:41:45,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:45,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:45,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:45,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:45,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686777776] [2021-10-28 08:41:45,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686777776] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:45,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:45,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:41:45,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172354531] [2021-10-28 08:41:45,954 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:41:45,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:45,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:41:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:41:45,957 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) [2021-10-28 08:41:46,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:46,105 INFO L93 Difference]: Finished difference Result 213 states and 239 transitions. [2021-10-28 08:41:46,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:41:46,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 213 states and 239 transitions. [2021-10-28 08:41:46,108 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 08:41:46,110 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 213 states to 199 states and 225 transitions. [2021-10-28 08:41:46,110 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-10-28 08:41:46,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-10-28 08:41:46,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 199 states and 225 transitions. [2021-10-28 08:41:46,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:46,113 INFO L681 BuchiCegarLoop]: Abstraction has 199 states and 225 transitions. [2021-10-28 08:41:46,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states and 225 transitions. [2021-10-28 08:41:46,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 164. [2021-10-28 08:41:46,119 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) [2021-10-28 08:41:46,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 186 transitions. [2021-10-28 08:41:46,120 INFO L704 BuchiCegarLoop]: Abstraction has 164 states and 186 transitions. [2021-10-28 08:41:46,120 INFO L587 BuchiCegarLoop]: Abstraction has 164 states and 186 transitions. [2021-10-28 08:41:46,120 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 08:41:46,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states and 186 transitions. [2021-10-28 08:41:46,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 08:41:46,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:46,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:46,123 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:41:46,123 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] [2021-10-28 08:41:46,123 INFO L791 eck$LassoCheckResult]: Stem: 2931#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 2890#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 2891#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 2880#L30 assume main_~l~0 > 1;main_#t~post4 := main_~l~0;main_~l~0 := main_#t~post4 - 1;havoc main_#t~post4; 2881#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 2908#L38-2 assume !!(main_~j~0 <= main_~r~0); 2918#L39 [2021-10-28 08:41:46,129 INFO L793 eck$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 [2021-10-28 08:41:46,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:46,130 INFO L85 PathProgramCache]: Analyzing trace with hash 889569551, now seen corresponding path program 2 times [2021-10-28 08:41:46,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:46,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516100410] [2021-10-28 08:41:46,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:46,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:46,149 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:46,173 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:46,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:46,175 INFO L85 PathProgramCache]: Analyzing trace with hash -20833724, now seen corresponding path program 1 times [2021-10-28 08:41:46,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:46,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744428263] [2021-10-28 08:41:46,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:46,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:46,203 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:46,226 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:46,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:46,227 INFO L85 PathProgramCache]: Analyzing trace with hash -387380874, now seen corresponding path program 1 times [2021-10-28 08:41:46,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:46,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036316847] [2021-10-28 08:41:46,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:46,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:46,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:46,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:46,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:46,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036316847] [2021-10-28 08:41:46,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036316847] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:41:46,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053955487] [2021-10-28 08:41:46,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:46,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:41:46,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:46,351 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:41:46,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-28 08:41:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:46,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:41:46,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:46,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:46,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053955487] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:46,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:41:46,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2021-10-28 08:41:46,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515430548] [2021-10-28 08:41:47,171 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:47,172 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:47,172 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:47,172 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:47,172 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:47,172 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:47,172 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:47,172 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:47,172 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration8_Loop [2021-10-28 08:41:47,173 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:47,173 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:47,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:47,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:47,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:47,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:47,257 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:47,258 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:47,258 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:47,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:47,259 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:47,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:47,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:47,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 08:41:47,291 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:47,291 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: [] [2021-10-28 08:41:47,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:47,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:47,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:47,331 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:47,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:47,337 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:47,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 08:41:47,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:47,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:47,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:47,408 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:47,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:47,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:47,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 08:41:47,505 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:47,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:47,508 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:47,508 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:47,508 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:47,508 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:47,508 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:47,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:47,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:47,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:47,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration8_Loop [2021-10-28 08:41:47,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:47,509 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:47,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:47,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:47,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:47,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:47,604 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:47,604 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:47,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:47,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:47,605 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:47,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:41:47,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:47,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:47,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:47,625 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 08:41:47,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:47,626 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:41:47,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:47,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 08:41:47,647 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:47,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:47,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:47,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:47,685 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:47,687 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 [2021-10-28 08:41:47,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:47,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:47,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:47,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:47,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:47,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:47,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:47,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 08:41:47,711 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:47,725 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 08:41:47,726 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:41:47,726 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:47,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:47,728 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:47,729 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:47,729 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:47,729 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:47,729 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 [] [2021-10-28 08:41:47,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 08:41:47,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:47,767 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:47,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:47,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:47,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:47,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:41:47,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:48,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:48,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:48,116 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 [2021-10-28 08:41:48,116 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) [2021-10-28 08:41:48,467 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. [2021-10-28 08:41:48,468 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 [2021-10-28 08:41:48,468 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) [2021-10-28 08:41:48,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 92 transitions. [2021-10-28 08:41:48,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 92 transitions. Stem has 6 letters. Loop has 23 letters. [2021-10-28 08:41:48,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:48,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 92 transitions. Stem has 29 letters. Loop has 23 letters. [2021-10-28 08:41:48,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:48,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 92 transitions. Stem has 6 letters. Loop has 46 letters. [2021-10-28 08:41:48,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:48,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 806 states and 891 transitions. [2021-10-28 08:41:48,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 08:41:48,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 806 states to 576 states and 640 transitions. [2021-10-28 08:41:48,487 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-10-28 08:41:48,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-10-28 08:41:48,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 576 states and 640 transitions. [2021-10-28 08:41:48,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:48,487 INFO L681 BuchiCegarLoop]: Abstraction has 576 states and 640 transitions. [2021-10-28 08:41:48,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states and 640 transitions. [2021-10-28 08:41:48,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 396. [2021-10-28 08:41:48,499 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) [2021-10-28 08:41:48,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 445 transitions. [2021-10-28 08:41:48,501 INFO L704 BuchiCegarLoop]: Abstraction has 396 states and 445 transitions. [2021-10-28 08:41:48,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:48,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:41:48,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:41:48,502 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) [2021-10-28 08:41:48,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:48,742 INFO L93 Difference]: Finished difference Result 548 states and 595 transitions. [2021-10-28 08:41:48,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 08:41:48,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 548 states and 595 transitions. [2021-10-28 08:41:48,748 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 08:41:48,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 548 states to 303 states and 341 transitions. [2021-10-28 08:41:48,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-28 08:41:48,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-28 08:41:48,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 303 states and 341 transitions. [2021-10-28 08:41:48,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:48,752 INFO L681 BuchiCegarLoop]: Abstraction has 303 states and 341 transitions. [2021-10-28 08:41:48,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states and 341 transitions. [2021-10-28 08:41:48,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 211. [2021-10-28 08:41:48,757 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) [2021-10-28 08:41:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 239 transitions. [2021-10-28 08:41:48,759 INFO L704 BuchiCegarLoop]: Abstraction has 211 states and 239 transitions. [2021-10-28 08:41:48,759 INFO L587 BuchiCegarLoop]: Abstraction has 211 states and 239 transitions. [2021-10-28 08:41:48,759 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 08:41:48,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 239 transitions. [2021-10-28 08:41:48,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 08:41:48,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:48,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:48,762 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:48,762 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] [2021-10-28 08:41:48,762 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 [2021-10-28 08:41:48,762 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 [2021-10-28 08:41:48,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:48,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1677155888, now seen corresponding path program 1 times [2021-10-28 08:41:48,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:48,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282929613] [2021-10-28 08:41:48,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:48,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:48,774 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:48,787 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:48,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:48,788 INFO L85 PathProgramCache]: Analyzing trace with hash 146732118, now seen corresponding path program 2 times [2021-10-28 08:41:48,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:48,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570959615] [2021-10-28 08:41:48,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:48,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:48,810 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:48,831 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:48,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:48,835 INFO L85 PathProgramCache]: Analyzing trace with hash 601078183, now seen corresponding path program 1 times [2021-10-28 08:41:48,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:48,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970962158] [2021-10-28 08:41:48,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:48,836 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:48,869 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:48,907 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:49,252 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:49,252 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:49,252 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:49,252 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:49,252 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:49,252 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:49,252 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:49,252 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:49,253 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration9_Loop [2021-10-28 08:41:49,253 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:49,253 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:49,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:49,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:49,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:49,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:49,338 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:49,338 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:49,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:49,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:49,339 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:49,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 08:41:49,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:49,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:49,360 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:49,360 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: [] [2021-10-28 08:41:49,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 08:41:49,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:49,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:49,381 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:49,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 08:41:49,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:49,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:49,395 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:49,395 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: [] [2021-10-28 08:41:49,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 08:41:49,415 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:49,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:49,416 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:49,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 08:41:49,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:49,418 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:49,431 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:49,431 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: [] [2021-10-28 08:41:49,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-28 08:41:49,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:49,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:49,452 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:49,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:49,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:49,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 08:41:49,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:49,518 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:49,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:49,523 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:49,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:49,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:49,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 08:41:49,705 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:49,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:49,708 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:49,708 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:49,709 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:49,709 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:49,709 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:49,709 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:49,709 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:49,709 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:49,709 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration9_Loop [2021-10-28 08:41:49,709 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:49,709 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:49,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:49,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:49,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:49,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:49,806 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:49,806 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:49,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:49,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:49,811 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:49,819 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 [2021-10-28 08:41:49,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:49,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:49,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:49,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:49,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:49,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:49,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:49,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 08:41:49,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:49,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:49,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:49,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:49,880 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:49,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 08:41:49,887 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 [2021-10-28 08:41:49,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:49,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:49,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:49,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:49,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:49,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:49,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:49,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:49,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:49,918 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:49,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:49,918 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:49,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 08:41:49,920 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 [2021-10-28 08:41:49,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:49,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:49,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:49,928 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 08:41:49,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:49,928 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:41:49,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:49,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:49,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:49,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:49,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:49,952 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:49,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 08:41:49,954 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 [2021-10-28 08:41:49,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:49,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:49,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:49,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:49,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:49,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:49,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:49,987 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:49,991 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 08:41:49,992 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:41:49,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:49,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:49,995 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:49,999 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:49,999 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:50,000 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:50,000 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 [] [2021-10-28 08:41:50,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 08:41:50,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:50,029 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:50,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:50,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:50,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:50,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 08:41:50,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:50,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:50,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:50,698 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 [2021-10-28 08:41:50,698 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) [2021-10-28 08:41:51,310 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. [2021-10-28 08:41:51,311 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 [2021-10-28 08:41:51,311 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) [2021-10-28 08:41:51,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 53 transitions. [2021-10-28 08:41:51,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 53 transitions. Stem has 18 letters. Loop has 23 letters. [2021-10-28 08:41:51,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:51,312 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:41:51,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:51,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:51,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:51,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 08:41:51,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:51,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:51,958 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 [2021-10-28 08:41:51,958 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) [2021-10-28 08:41:52,657 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. [2021-10-28 08:41:52,657 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 [2021-10-28 08:41:52,658 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) [2021-10-28 08:41:52,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 64 transitions. [2021-10-28 08:41:52,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 64 transitions. Stem has 18 letters. Loop has 23 letters. [2021-10-28 08:41:52,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:52,658 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:41:52,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:52,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:52,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:52,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 08:41:52,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:53,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:53,244 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 [2021-10-28 08:41:53,244 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) [2021-10-28 08:41:53,802 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. [2021-10-28 08:41:53,806 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 [2021-10-28 08:41:53,806 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) [2021-10-28 08:41:53,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 101 transitions. [2021-10-28 08:41:53,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 101 transitions. Stem has 18 letters. Loop has 23 letters. [2021-10-28 08:41:53,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:53,807 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:41:53,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:53,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:53,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:53,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 08:41:53,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:54,374 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 [2021-10-28 08:41:54,374 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) [2021-10-28 08:41:54,968 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. [2021-10-28 08:41:54,978 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 [2021-10-28 08:41:54,978 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) [2021-10-28 08:41:54,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 103 transitions. [2021-10-28 08:41:54,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 103 transitions. Stem has 18 letters. Loop has 23 letters. [2021-10-28 08:41:54,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:54,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 103 transitions. Stem has 41 letters. Loop has 23 letters. [2021-10-28 08:41:54,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:54,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 103 transitions. Stem has 18 letters. Loop has 46 letters. [2021-10-28 08:41:54,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:54,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 812 states and 890 transitions. [2021-10-28 08:41:54,988 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 08:41:54,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 812 states to 568 states and 630 transitions. [2021-10-28 08:41:54,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2021-10-28 08:41:54,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-10-28 08:41:54,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 568 states and 630 transitions. [2021-10-28 08:41:54,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:54,995 INFO L681 BuchiCegarLoop]: Abstraction has 568 states and 630 transitions. [2021-10-28 08:41:54,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states and 630 transitions. [2021-10-28 08:41:55,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 384. [2021-10-28 08:41:55,004 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) [2021-10-28 08:41:55,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 433 transitions. [2021-10-28 08:41:55,006 INFO L704 BuchiCegarLoop]: Abstraction has 384 states and 433 transitions. [2021-10-28 08:41:55,006 INFO L587 BuchiCegarLoop]: Abstraction has 384 states and 433 transitions. [2021-10-28 08:41:55,006 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 08:41:55,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 384 states and 433 transitions. [2021-10-28 08:41:55,009 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 08:41:55,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:55,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:55,010 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] [2021-10-28 08:41:55,010 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] [2021-10-28 08:41:55,011 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 [2021-10-28 08:41:55,011 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 [2021-10-28 08:41:55,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:55,011 INFO L85 PathProgramCache]: Analyzing trace with hash 870747555, now seen corresponding path program 1 times [2021-10-28 08:41:55,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:55,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083570574] [2021-10-28 08:41:55,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:55,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:55,025 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:55,039 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:55,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:55,039 INFO L85 PathProgramCache]: Analyzing trace with hash 739173976, now seen corresponding path program 3 times [2021-10-28 08:41:55,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:55,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775095404] [2021-10-28 08:41:55,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:55,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:55,057 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:55,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:55,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1242964598, now seen corresponding path program 1 times [2021-10-28 08:41:55,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:55,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372474790] [2021-10-28 08:41:55,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:55,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:55,147 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:55,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:55,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372474790] [2021-10-28 08:41:55,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372474790] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:41:55,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048340542] [2021-10-28 08:41:55,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:55,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:41:55,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:55,149 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:41:55,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-28 08:41:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:55,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:41:55,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:55,892 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:55,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048340542] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:41:55,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:41:55,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-28 08:41:55,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982724148] [2021-10-28 08:41:56,240 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:56,240 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:56,240 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:56,240 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:56,241 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:56,242 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:56,242 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:56,242 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:56,242 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration10_Loop [2021-10-28 08:41:56,242 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:56,242 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:56,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:56,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:56,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:56,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:56,328 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:56,328 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:56,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:56,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:56,331 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:56,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:56,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:56,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 08:41:56,355 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:56,355 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: [] [2021-10-28 08:41:56,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:56,391 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:56,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:56,392 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:56,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:56,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:56,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 08:41:56,415 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:56,415 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: [] [2021-10-28 08:41:56,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:56,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:56,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:56,456 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:56,458 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:56,459 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:56,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 08:41:56,480 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:56,480 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: [] [2021-10-28 08:41:56,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:56,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:56,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:56,520 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:56,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:56,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:56,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 08:41:56,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:56,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:56,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:56,592 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:56,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:56,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:56,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 08:41:56,693 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:56,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-28 08:41:56,696 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:56,696 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:56,696 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:56,696 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:56,696 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:56,696 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:56,696 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:56,696 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:56,696 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration10_Loop [2021-10-28 08:41:56,696 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:56,696 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:56,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:56,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:56,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:56,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:56,774 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:56,774 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:56,774 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:56,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:56,775 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:56,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 08:41:56,780 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 [2021-10-28 08:41:56,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:56,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:56,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:56,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:56,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:56,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:56,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:56,789 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:56,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-28 08:41:56,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:56,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:56,809 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:56,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 08:41:56,811 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 [2021-10-28 08:41:56,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:56,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:56,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:56,819 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 08:41:56,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:56,820 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:41:56,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:56,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:56,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-10-28 08:41:56,846 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:56,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:56,846 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:56,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 08:41:56,848 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 [2021-10-28 08:41:56,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:56,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:56,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:56,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:56,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:56,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:56,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:56,859 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:56,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:56,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:56,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:56,882 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:56,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 08:41:56,884 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 [2021-10-28 08:41:56,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:56,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:56,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:56,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:56,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:56,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:56,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:56,897 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:56,900 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 08:41:56,900 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:41:56,901 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:56,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:56,902 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:56,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 08:41:56,903 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:56,903 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:56,903 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:56,903 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 [] [2021-10-28 08:41:56,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:56,926 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:56,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:56,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:56,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:57,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 08:41:57,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:57,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:57,324 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 [2021-10-28 08:41:57,324 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) [2021-10-28 08:41:57,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:57,767 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. [2021-10-28 08:41:57,767 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 [2021-10-28 08:41:57,768 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) [2021-10-28 08:41:57,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 162 transitions. [2021-10-28 08:41:57,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 162 transitions. Stem has 28 letters. Loop has 23 letters. [2021-10-28 08:41:57,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:57,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 162 transitions. Stem has 51 letters. Loop has 23 letters. [2021-10-28 08:41:57,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:57,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 162 transitions. Stem has 28 letters. Loop has 46 letters. [2021-10-28 08:41:57,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:41:57,769 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1275 states and 1405 transitions. [2021-10-28 08:41:57,781 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-10-28 08:41:57,791 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1275 states to 1091 states and 1206 transitions. [2021-10-28 08:41:57,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2021-10-28 08:41:57,791 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2021-10-28 08:41:57,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1091 states and 1206 transitions. [2021-10-28 08:41:57,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:57,792 INFO L681 BuchiCegarLoop]: Abstraction has 1091 states and 1206 transitions. [2021-10-28 08:41:57,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states and 1206 transitions. [2021-10-28 08:41:57,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 783. [2021-10-28 08:41:57,809 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) [2021-10-28 08:41:57,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 875 transitions. [2021-10-28 08:41:57,812 INFO L704 BuchiCegarLoop]: Abstraction has 783 states and 875 transitions. [2021-10-28 08:41:57,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:57,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:41:57,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:41:57,814 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) [2021-10-28 08:41:58,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:58,329 INFO L93 Difference]: Finished difference Result 2011 states and 2199 transitions. [2021-10-28 08:41:58,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 08:41:58,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2011 states and 2199 transitions. [2021-10-28 08:41:58,352 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-10-28 08:41:58,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2011 states to 1679 states and 1839 transitions. [2021-10-28 08:41:58,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2021-10-28 08:41:58,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2021-10-28 08:41:58,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1679 states and 1839 transitions. [2021-10-28 08:41:58,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:41:58,369 INFO L681 BuchiCegarLoop]: Abstraction has 1679 states and 1839 transitions. [2021-10-28 08:41:58,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states and 1839 transitions. [2021-10-28 08:41:58,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 965. [2021-10-28 08:41:58,413 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) [2021-10-28 08:41:58,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1075 transitions. [2021-10-28 08:41:58,419 INFO L704 BuchiCegarLoop]: Abstraction has 965 states and 1075 transitions. [2021-10-28 08:41:58,419 INFO L587 BuchiCegarLoop]: Abstraction has 965 states and 1075 transitions. [2021-10-28 08:41:58,419 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 08:41:58,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 965 states and 1075 transitions. [2021-10-28 08:41:58,425 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-10-28 08:41:58,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:41:58,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:41:58,430 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] [2021-10-28 08:41:58,430 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] [2021-10-28 08:41:58,432 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 [2021-10-28 08:41:58,433 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 [2021-10-28 08:41:58,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:58,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1634846562, now seen corresponding path program 1 times [2021-10-28 08:41:58,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:58,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334496721] [2021-10-28 08:41:58,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:58,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:58,460 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:58,484 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:58,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:58,485 INFO L85 PathProgramCache]: Analyzing trace with hash 739173976, now seen corresponding path program 4 times [2021-10-28 08:41:58,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:58,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226930875] [2021-10-28 08:41:58,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:58,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:58,508 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:58,519 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:58,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:58,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1847878103, now seen corresponding path program 1 times [2021-10-28 08:41:58,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:58,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920713075] [2021-10-28 08:41:58,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:58,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:58,537 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:41:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:41:58,566 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:41:58,802 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:58,802 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:58,802 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:58,803 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:58,803 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:41:58,803 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:58,803 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:58,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:58,803 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration11_Loop [2021-10-28 08:41:58,803 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:58,803 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:58,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:58,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:58,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:58,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:58,932 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:58,932 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:41:58,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:58,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:58,935 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:58,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:58,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:58,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 08:41:58,953 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:58,953 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: [] [2021-10-28 08:41:58,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:58,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:58,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:58,974 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:58,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 08:41:58,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:58,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:58,989 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:41:58,989 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: [] [2021-10-28 08:41:59,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-28 08:41:59,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:59,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:59,013 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:59,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 08:41:59,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:41:59,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:59,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-28 08:41:59,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:59,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:59,058 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:59,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 08:41:59,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:41:59,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:41:59,152 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:41:59,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-28 08:41:59,155 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:41:59,155 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:41:59,155 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:41:59,155 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:41:59,155 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:41:59,155 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:59,155 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:41:59,156 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:41:59,156 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration11_Loop [2021-10-28 08:41:59,156 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:41:59,156 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:41:59,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:59,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:59,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:59,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:41:59,229 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:41:59,229 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:41:59,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:59,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:59,247 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:59,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 08:41:59,249 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 [2021-10-28 08:41:59,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:59,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:59,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:59,260 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 08:41:59,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:59,261 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:41:59,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:59,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:59,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-28 08:41:59,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:59,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:59,307 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:59,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 08:41:59,308 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 [2021-10-28 08:41:59,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:59,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:59,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:59,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:59,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:59,316 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:59,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:59,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:41:59,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-10-28 08:41:59,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:59,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:59,339 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:59,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 08:41:59,340 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 [2021-10-28 08:41:59,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:41:59,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:41:59,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:41:59,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:41:59,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:41:59,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:41:59,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:41:59,353 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:41:59,356 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 08:41:59,356 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:41:59,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:41:59,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:59,358 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:59,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 08:41:59,359 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:41:59,359 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:41:59,359 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:41:59,359 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 [] [2021-10-28 08:41:59,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-28 08:41:59,382 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:41:59,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:59,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:59,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:59,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:41:59,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:59,770 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 [2021-10-28 08:41:59,771 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) [2021-10-28 08:42:00,159 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. [2021-10-28 08:42:00,159 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 [2021-10-28 08:42:00,160 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) [2021-10-28 08:42:00,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 159 transitions. [2021-10-28 08:42:00,160 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 159 transitions. Stem has 36 letters. Loop has 23 letters. [2021-10-28 08:42:00,160 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:00,161 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:42:00,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:00,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:00,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:42:00,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:00,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:42:00,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:00,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:42:00,564 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 [2021-10-28 08:42:00,565 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) [2021-10-28 08:42:00,900 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. [2021-10-28 08:42:00,901 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 [2021-10-28 08:42:00,901 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) [2021-10-28 08:42:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 159 transitions. [2021-10-28 08:42:00,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 159 transitions. Stem has 36 letters. Loop has 23 letters. [2021-10-28 08:42:00,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:00,902 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:42:00,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:00,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:42:00,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:01,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:42:01,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:42:01,253 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 [2021-10-28 08:42:01,253 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) [2021-10-28 08:42:01,728 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. [2021-10-28 08:42:01,729 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 [2021-10-28 08:42:01,729 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) [2021-10-28 08:42:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 160 transitions. [2021-10-28 08:42:01,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 160 transitions. Stem has 36 letters. Loop has 23 letters. [2021-10-28 08:42:01,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:01,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 160 transitions. Stem has 59 letters. Loop has 23 letters. [2021-10-28 08:42:01,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:01,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 160 transitions. Stem has 36 letters. Loop has 46 letters. [2021-10-28 08:42:01,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:01,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2357 states and 2561 transitions. [2021-10-28 08:42:01,752 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-10-28 08:42:01,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2357 states to 1581 states and 1731 transitions. [2021-10-28 08:42:01,767 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2021-10-28 08:42:01,767 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115 [2021-10-28 08:42:01,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1581 states and 1731 transitions. [2021-10-28 08:42:01,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:42:01,768 INFO L681 BuchiCegarLoop]: Abstraction has 1581 states and 1731 transitions. [2021-10-28 08:42:01,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states and 1731 transitions. [2021-10-28 08:42:01,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 785. [2021-10-28 08:42:01,790 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) [2021-10-28 08:42:01,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 872 transitions. [2021-10-28 08:42:01,793 INFO L704 BuchiCegarLoop]: Abstraction has 785 states and 872 transitions. [2021-10-28 08:42:01,793 INFO L587 BuchiCegarLoop]: Abstraction has 785 states and 872 transitions. [2021-10-28 08:42:01,794 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 08:42:01,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 785 states and 872 transitions. [2021-10-28 08:42:01,798 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 08:42:01,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:42:01,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:42:01,799 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] [2021-10-28 08:42:01,800 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] [2021-10-28 08:42:01,800 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 [2021-10-28 08:42:01,800 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 [2021-10-28 08:42:01,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:01,801 INFO L85 PathProgramCache]: Analyzing trace with hash 946074286, now seen corresponding path program 1 times [2021-10-28 08:42:01,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:01,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334995507] [2021-10-28 08:42:01,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:01,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:01,826 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:01,840 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:01,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:01,840 INFO L85 PathProgramCache]: Analyzing trace with hash 354378664, now seen corresponding path program 1 times [2021-10-28 08:42:01,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:01,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832344749] [2021-10-28 08:42:01,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:01,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:01,874 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:01,902 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:01,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:01,903 INFO L85 PathProgramCache]: Analyzing trace with hash -478626213, now seen corresponding path program 2 times [2021-10-28 08:42:01,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:01,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701388762] [2021-10-28 08:42:01,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:01,904 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:01,924 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:01,952 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:02,264 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:42:02,265 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:42:02,265 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:42:02,265 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:42:02,265 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:42:02,265 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:02,265 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:42:02,265 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:42:02,265 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration12_Loop [2021-10-28 08:42:02,266 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:42:02,266 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:42:02,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:42:02,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:42:02,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:42:02,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:42:02,369 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:42:02,369 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:42:02,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:02,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:02,370 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:02,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 08:42:02,375 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:02,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:02,390 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:02,390 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: [] [2021-10-28 08:42:02,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:02,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:02,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:02,411 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:02,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 08:42:02,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:02,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:02,421 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:02,421 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: [] [2021-10-28 08:42:02,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-28 08:42:02,441 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:02,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:02,449 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:02,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 08:42:02,450 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:02,450 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:02,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-10-28 08:42:02,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:02,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:02,512 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:02,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 08:42:02,514 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:42:02,514 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:02,620 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:42:02,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-10-28 08:42:02,623 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:42:02,623 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:42:02,623 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:42:02,623 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:42:02,623 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:42:02,623 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:02,624 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:42:02,624 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:42:02,624 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration12_Loop [2021-10-28 08:42:02,624 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:42:02,624 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:42:02,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:42:02,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:42:02,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:42:02,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:42:02,719 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:42:02,719 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:42:02,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:02,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:02,720 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:02,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 08:42:02,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:42:02,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:02,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:02,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:02,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:02,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:02,754 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:02,754 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:02,755 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:02,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-10-28 08:42:02,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:02,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:02,776 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:02,781 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 [2021-10-28 08:42:02,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:02,790 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:02,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:02,790 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 08:42:02,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:02,792 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:42:02,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:02,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 08:42:02,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:02,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-10-28 08:42:02,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:02,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:02,819 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:02,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 08:42:02,821 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 [2021-10-28 08:42:02,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:02,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:02,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:02,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:02,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:02,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:02,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:02,833 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:42:02,835 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:42:02,836 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:42:02,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:02,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:02,842 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:02,844 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:42:02,844 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:42:02,844 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:42:02,844 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 [] [2021-10-28 08:42:02,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 08:42:02,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-28 08:42:02,867 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:42:02,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:02,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:42:02,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:03,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 08:42:03,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:03,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:42:03,355 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 [2021-10-28 08:42:03,355 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) [2021-10-28 08:42:03,579 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. [2021-10-28 08:42:03,580 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 [2021-10-28 08:42:03,580 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) [2021-10-28 08:42:03,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 58 transitions. [2021-10-28 08:42:03,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 58 transitions. Stem has 37 letters. Loop has 23 letters. [2021-10-28 08:42:03,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:03,581 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:42:03,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:03,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-28 08:42:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:03,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:42:03,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:03,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 08:42:03,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:04,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:42:04,069 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 [2021-10-28 08:42:04,070 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) [2021-10-28 08:42:04,260 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. [2021-10-28 08:42:04,263 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 [2021-10-28 08:42:04,263 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) [2021-10-28 08:42:04,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 58 transitions. [2021-10-28 08:42:04,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 58 transitions. Stem has 37 letters. Loop has 23 letters. [2021-10-28 08:42:04,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:04,264 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:42:04,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:04,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:42:04,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:04,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 08:42:04,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:04,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:42:04,721 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 [2021-10-28 08:42:04,721 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) [2021-10-28 08:42:05,013 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. [2021-10-28 08:42:05,013 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 [2021-10-28 08:42:05,013 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) [2021-10-28 08:42:05,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 124 transitions. [2021-10-28 08:42:05,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 124 transitions. Stem has 37 letters. Loop has 23 letters. [2021-10-28 08:42:05,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:05,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 124 transitions. Stem has 60 letters. Loop has 23 letters. [2021-10-28 08:42:05,015 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:05,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 124 transitions. Stem has 37 letters. Loop has 46 letters. [2021-10-28 08:42:05,017 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:05,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2401 states and 2589 transitions. [2021-10-28 08:42:05,036 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:42:05,037 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2401 states to 0 states and 0 transitions. [2021-10-28 08:42:05,037 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:42:05,037 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:42:05,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:42:05,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:42:05,037 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:42:05,037 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:42:05,038 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:42:05,038 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-28 08:42:05,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:42:05,038 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:42:05,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 08:42:05,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:42:05 BoogieIcfgContainer [2021-10-28 08:42:05,045 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:42:05,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:42:05,045 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:42:05,045 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:42:05,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:41:38" (3/4) ... [2021-10-28 08:42:05,049 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:42:05,049 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:42:05,051 INFO L168 Benchmark]: Toolchain (without parser) took 27208.25 ms. Allocated memory was 81.8 MB in the beginning and 209.7 MB in the end (delta: 127.9 MB). Free memory was 45.4 MB in the beginning and 91.5 MB in the end (delta: -46.1 MB). Peak memory consumption was 81.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:05,051 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 81.8 MB. Free memory was 62.1 MB in the beginning and 62.0 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:42:05,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.51 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 45.2 MB in the beginning and 75.3 MB in the end (delta: -30.1 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:05,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.05 ms. Allocated memory is still 98.6 MB. Free memory was 75.3 MB in the beginning and 73.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:05,052 INFO L168 Benchmark]: Boogie Preprocessor took 42.93 ms. Allocated memory is still 98.6 MB. Free memory was 73.3 MB in the beginning and 72.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:05,053 INFO L168 Benchmark]: RCFGBuilder took 502.62 ms. Allocated memory is still 98.6 MB. Free memory was 72.0 MB in the beginning and 60.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:05,053 INFO L168 Benchmark]: BuchiAutomizer took 26253.82 ms. Allocated memory was 98.6 MB in the beginning and 209.7 MB in the end (delta: 111.1 MB). Free memory was 59.7 MB in the beginning and 92.6 MB in the end (delta: -32.9 MB). Peak memory consumption was 79.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:05,054 INFO L168 Benchmark]: Witness Printer took 4.36 ms. Allocated memory is still 209.7 MB. Free memory was 92.6 MB in the beginning and 91.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:42:05,056 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 81.8 MB. Free memory was 62.1 MB in the beginning and 62.0 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 332.51 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 45.2 MB in the beginning and 75.3 MB in the end (delta: -30.1 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.05 ms. Allocated memory is still 98.6 MB. Free memory was 75.3 MB in the beginning and 73.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.93 ms. Allocated memory is still 98.6 MB. Free memory was 73.3 MB in the beginning and 72.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 502.62 ms. Allocated memory is still 98.6 MB. Free memory was 72.0 MB in the beginning and 60.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 26253.82 ms. Allocated memory was 98.6 MB in the beginning and 209.7 MB in the end (delta: 111.1 MB). Free memory was 59.7 MB in the beginning and 92.6 MB in the end (delta: -32.9 MB). Peak memory consumption was 79.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.36 ms. Allocated memory is still 209.7 MB. Free memory was 92.6 MB in the beginning and 91.5 MB in the end (delta: 1.0 MB). There was no memory consumed. 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 26.2s and 13 iterations. TraceHistogramMax:2. Analysis of lassos took 12.2s. Construction of modules took 2.8s. Büchi inclusion checks took 10.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 15. Automata minimization 0.2s 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, 2.8s 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: 26ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 08:42:05,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:05,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:05,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279fe9ba-333c-4f70-b4a7-3f58b36c444f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...