./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_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/heapsort.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD --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 23:26:12,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:26:12,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:26:12,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:26:12,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:26:12,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:26:12,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:26:12,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:26:12,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:26:12,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:26:12,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:26:12,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:26:12,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:26:12,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:26:12,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:26:12,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:26:12,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:26:12,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:26:12,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:26:12,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:26:12,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:26:12,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:26:12,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:26:12,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:26:12,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:26:12,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:26:12,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:26:12,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:26:12,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:26:12,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:26:12,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:26:12,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:26:12,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:26:12,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:26:12,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:26:12,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:26:12,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:26:12,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:26:12,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:26:12,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:26:12,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:26:12,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:26:12,348 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:26:12,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:26:12,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:26:12,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:26:12,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:26:12,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:26:12,350 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:26:12,350 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:26:12,351 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:26:12,351 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:26:12,351 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:26:12,351 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:26:12,351 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:26:12,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:26:12,352 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:26:12,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:26:12,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:26:12,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:26:12,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:26:12,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:26:12,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:26:12,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:26:12,353 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:26:12,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:26:12,359 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:26:12,360 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:26:12,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:26:12,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:26:12,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:26:12,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:26:12,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:26:12,364 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:26:12,365 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:26:12,365 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_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e7c8e5dc2a9e8f11b25d1bb9948f05f37b9553e3dc9f8bd8213088dea43cb37 [2021-10-28 23:26:12,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:26:12,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:26:12,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:26:12,754 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:26:12,755 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:26:12,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/loop-invgen/heapsort.i [2021-10-28 23:26:12,840 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/data/a97788ce1/1d4d6c89faff4f4db30c283aa5bb0c63/FLAG75b57b81f [2021-10-28 23:26:13,414 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:26:13,415 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/sv-benchmarks/c/loop-invgen/heapsort.i [2021-10-28 23:26:13,429 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/data/a97788ce1/1d4d6c89faff4f4db30c283aa5bb0c63/FLAG75b57b81f [2021-10-28 23:26:13,729 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/data/a97788ce1/1d4d6c89faff4f4db30c283aa5bb0c63 [2021-10-28 23:26:13,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:26:13,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:26:13,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:26:13,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:26:13,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:26:13,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:26:13" (1/1) ... [2021-10-28 23:26:13,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d756d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:13, skipping insertion in model container [2021-10-28 23:26:13,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:26:13" (1/1) ... [2021-10-28 23:26:13,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:26:13,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:26:14,032 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_d587c3e3-ee6a-420e-8777-39dce7a7a73c/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2021-10-28 23:26:14,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:26:14,100 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:26:14,114 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_d587c3e3-ee6a-420e-8777-39dce7a7a73c/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2021-10-28 23:26:14,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:26:14,139 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:26:14,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:14 WrapperNode [2021-10-28 23:26:14,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:26:14,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:26:14,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:26:14,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:26:14,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:14" (1/1) ... [2021-10-28 23:26:14,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:14" (1/1) ... [2021-10-28 23:26:14,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:26:14,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:26:14,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:26:14,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:26:14,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:14" (1/1) ... [2021-10-28 23:26:14,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:14" (1/1) ... [2021-10-28 23:26:14,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:14" (1/1) ... [2021-10-28 23:26:14,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:14" (1/1) ... [2021-10-28 23:26:14,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:14" (1/1) ... [2021-10-28 23:26:14,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:14" (1/1) ... [2021-10-28 23:26:14,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:14" (1/1) ... [2021-10-28 23:26:14,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:26:14,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:26:14,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:26:14,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:26:14,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:14" (1/1) ... [2021-10-28 23:26:14,240 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:14,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:14,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:14,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:26:14,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:26:14,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:26:14,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:26:14,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:26:14,773 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:26:14,774 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-10-28 23:26:14,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:26:14 BoogieIcfgContainer [2021-10-28 23:26:14,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:26:14,777 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:26:14,777 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:26:14,781 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:26:14,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:26:14,782 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:26:13" (1/3) ... [2021-10-28 23:26:14,783 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25fc625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:26:14, skipping insertion in model container [2021-10-28 23:26:14,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:26:14,784 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:26:14" (2/3) ... [2021-10-28 23:26:14,784 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25fc625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:26:14, skipping insertion in model container [2021-10-28 23:26:14,784 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:26:14,784 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:26:14" (3/3) ... [2021-10-28 23:26:14,786 INFO L389 chiAutomizerObserver]: Analyzing ICFG heapsort.i [2021-10-28 23:26:14,857 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:26:14,857 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:26:14,857 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:26:14,858 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:26:14,858 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:26:14,858 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:26:14,858 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:26:14,858 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:26:14,884 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 23:26:14,907 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2021-10-28 23:26:14,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:14,908 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:14,916 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:26:14,916 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:14,916 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:26:14,917 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 23:26:14,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2021-10-28 23:26:14,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:14,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:14,924 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:26:14,924 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:14,932 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 23:26:14,933 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 23:26:14,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:14,940 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-10-28 23:26:14,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:14,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251104323] [2021-10-28 23:26:14,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:14,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:15,067 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:15,112 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:15,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:15,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1007028738, now seen corresponding path program 1 times [2021-10-28 23:26:15,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:15,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276919063] [2021-10-28 23:26:15,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:15,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:15,167 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 23:26:15,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:15,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276919063] [2021-10-28 23:26:15,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276919063] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:15,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:15,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:26:15,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750379462] [2021-10-28 23:26:15,174 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:26:15,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:15,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:26:15,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:26:15,190 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 23:26:15,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:15,200 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2021-10-28 23:26:15,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:26:15,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 62 transitions. [2021-10-28 23:26:15,205 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2021-10-28 23:26:15,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 37 states and 43 transitions. [2021-10-28 23:26:15,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-10-28 23:26:15,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-10-28 23:26:15,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 43 transitions. [2021-10-28 23:26:15,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:26:15,212 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-10-28 23:26:15,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 43 transitions. [2021-10-28 23:26:15,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-28 23:26:15,237 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 23:26:15,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2021-10-28 23:26:15,239 INFO L704 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-10-28 23:26:15,239 INFO L587 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-10-28 23:26:15,239 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:26:15,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 43 transitions. [2021-10-28 23:26:15,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2021-10-28 23:26:15,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:15,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:15,242 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:26:15,242 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:15,242 INFO L791 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 129#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 130#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 120#L30 assume !(main_~l~0 > 1);main_#t~post5 := main_~r~0;main_~r~0 := main_#t~post5 - 1;havoc main_#t~post5; 121#L59-1 [2021-10-28 23:26:15,243 INFO L793 eck$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 23:26:15,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:15,244 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2021-10-28 23:26:15,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:15,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724027341] [2021-10-28 23:26:15,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:15,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:15,263 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:15,285 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:15,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:15,286 INFO L85 PathProgramCache]: Analyzing trace with hash -147559562, now seen corresponding path program 1 times [2021-10-28 23:26:15,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:15,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785152417] [2021-10-28 23:26:15,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:15,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:15,297 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:15,310 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:15,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:15,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1812261295, now seen corresponding path program 1 times [2021-10-28 23:26:15,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:15,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001692203] [2021-10-28 23:26:15,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:15,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:15,361 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 23:26:15,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:15,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001692203] [2021-10-28 23:26:15,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001692203] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:15,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:15,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:26:15,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107269715] [2021-10-28 23:26:15,729 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:15,730 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:15,730 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:15,730 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:15,730 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:26:15,730 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:15,731 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:15,731 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:15,731 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration2_Loop [2021-10-28 23:26:15,731 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:15,731 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:15,751 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 23:26:15,770 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 23:26:15,773 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 23:26:15,856 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:15,857 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:26:15,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:15,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:15,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:15,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:26:15,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:15,881 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:15,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:15,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:15,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:15,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:15,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:26:15,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:16,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:26:16,300 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:26:16,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:16,307 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:16,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:16,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:16,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:16,307 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:26:16,307 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:16,307 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:16,307 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:16,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration2_Loop [2021-10-28 23:26:16,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:16,308 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:16,309 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 23:26:16,318 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 23:26:16,348 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 23:26:16,458 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:16,463 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:26:16,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:16,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:16,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:16,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:26:16,481 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 23:26:16,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:16,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:16,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:16,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:16,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:16,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:16,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:16,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:16,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:16,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:16,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:16,555 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:16,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:26:16,561 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 23:26:16,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:16,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:16,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:16,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:16,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:16,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:16,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:16,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:16,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:16,628 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:16,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:16,630 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:16,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:26:16,632 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 23:26:16,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:16,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:16,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:16,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:16,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:16,646 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:16,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:16,672 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:26:16,683 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:26:16,684 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:26:16,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:16,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:16,691 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:16,694 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:26:16,694 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:26:16,695 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:26:16,695 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 23:26:16,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:26:16,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:16,747 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:26:16,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:16,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:16,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:16,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:26:16,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:16,937 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 23:26:16,941 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 23:26:16,942 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 23:26:17,041 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 23:26:17,042 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 23:26:17,043 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 23:26:17,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2021-10-28 23:26:17,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 4 letters. Loop has 7 letters. [2021-10-28 23:26:17,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:17,052 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 11 letters. Loop has 7 letters. [2021-10-28 23:26:17,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:17,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 4 letters. Loop has 14 letters. [2021-10-28 23:26:17,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:17,054 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 124 transitions. [2021-10-28 23:26:17,064 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2021-10-28 23:26:17,066 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 102 states and 120 transitions. [2021-10-28 23:26:17,066 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2021-10-28 23:26:17,067 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2021-10-28 23:26:17,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 120 transitions. [2021-10-28 23:26:17,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:17,068 INFO L681 BuchiCegarLoop]: Abstraction has 102 states and 120 transitions. [2021-10-28 23:26:17,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 120 transitions. [2021-10-28 23:26:17,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2021-10-28 23:26:17,082 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 23:26:17,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2021-10-28 23:26:17,088 INFO L704 BuchiCegarLoop]: Abstraction has 101 states and 118 transitions. [2021-10-28 23:26:17,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:17,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:26:17,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:26:17,090 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 23:26:17,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:17,124 INFO L93 Difference]: Finished difference Result 121 states and 140 transitions. [2021-10-28 23:26:17,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:26:17,125 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 140 transitions. [2021-10-28 23:26:17,132 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 87 [2021-10-28 23:26:17,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 92 states and 106 transitions. [2021-10-28 23:26:17,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2021-10-28 23:26:17,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2021-10-28 23:26:17,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 106 transitions. [2021-10-28 23:26:17,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:26:17,138 INFO L681 BuchiCegarLoop]: Abstraction has 92 states and 106 transitions. [2021-10-28 23:26:17,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 106 transitions. [2021-10-28 23:26:17,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 62. [2021-10-28 23:26:17,143 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 23:26:17,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2021-10-28 23:26:17,144 INFO L704 BuchiCegarLoop]: Abstraction has 62 states and 72 transitions. [2021-10-28 23:26:17,144 INFO L587 BuchiCegarLoop]: Abstraction has 62 states and 72 transitions. [2021-10-28 23:26:17,144 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:26:17,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 72 transitions. [2021-10-28 23:26:17,145 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 58 [2021-10-28 23:26:17,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:17,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:17,146 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:26:17,146 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:17,147 INFO L791 eck$LassoCheckResult]: Stem: 572#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 551#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 552#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 542#L30 assume main_~l~0 > 1;main_#t~post4 := main_~l~0;main_~l~0 := main_#t~post4 - 1;havoc main_#t~post4; 543#L59-1 [2021-10-28 23:26:17,147 INFO L793 eck$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 23:26:17,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:17,148 INFO L85 PathProgramCache]: Analyzing trace with hash 925670, now seen corresponding path program 1 times [2021-10-28 23:26:17,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:17,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690976511] [2021-10-28 23:26:17,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:17,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:17,168 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:17,198 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:17,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:17,199 INFO L85 PathProgramCache]: Analyzing trace with hash -147559562, now seen corresponding path program 2 times [2021-10-28 23:26:17,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:17,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139355935] [2021-10-28 23:26:17,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:17,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:17,209 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:17,221 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:17,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:17,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1673359375, now seen corresponding path program 1 times [2021-10-28 23:26:17,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:17,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800555892] [2021-10-28 23:26:17,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:17,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:17,301 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 23:26:17,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:17,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800555892] [2021-10-28 23:26:17,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800555892] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:17,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:17,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:26:17,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249672401] [2021-10-28 23:26:17,441 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:17,441 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:17,441 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:17,442 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:17,442 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:26:17,442 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:17,442 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:17,442 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:17,442 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration3_Loop [2021-10-28 23:26:17,443 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:17,443 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:17,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:26:17,460 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 23:26:17,463 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 23:26:17,536 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:17,537 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:26:17,537 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:17,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:17,540 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:17,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:26:17,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:17,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:17,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:17,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:17,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:17,610 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:17,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:26:17,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:17,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:26:17,886 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:26:17,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-28 23:26:17,893 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:17,893 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:17,893 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:17,893 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:17,893 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:26:17,894 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:17,894 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:17,894 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:17,894 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration3_Loop [2021-10-28 23:26:17,894 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:17,894 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:17,895 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 23:26:17,912 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 23:26:17,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:26:18,000 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:18,000 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:26:18,000 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:18,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:18,002 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:18,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:26:18,007 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 23:26:18,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:18,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:18,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:18,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:18,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:18,028 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:18,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:18,043 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:18,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:18,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:18,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:18,093 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:18,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:18,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:26:18,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:18,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:18,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:18,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:18,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:18,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:18,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:18,119 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:26:18,124 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:26:18,125 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:26:18,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:18,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:18,160 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:18,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:26:18,166 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:26:18,166 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:26:18,166 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:26:18,166 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 23:26:18,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:18,195 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:26:18,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:18,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:18,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:18,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:26:18,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:18,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:18,449 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 23:26:18,450 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 23:26:18,450 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 23:26:18,493 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 23:26:18,494 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 23:26:18,494 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 23:26:18,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2021-10-28 23:26:18,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 77 transitions. Stem has 4 letters. Loop has 7 letters. [2021-10-28 23:26:18,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:18,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 77 transitions. Stem has 11 letters. Loop has 7 letters. [2021-10-28 23:26:18,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:18,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 77 transitions. Stem has 4 letters. Loop has 14 letters. [2021-10-28 23:26:18,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:18,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 175 transitions. [2021-10-28 23:26:18,499 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 81 [2021-10-28 23:26:18,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 117 states and 137 transitions. [2021-10-28 23:26:18,502 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 87 [2021-10-28 23:26:18,502 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 88 [2021-10-28 23:26:18,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 117 states and 137 transitions. [2021-10-28 23:26:18,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:18,503 INFO L681 BuchiCegarLoop]: Abstraction has 117 states and 137 transitions. [2021-10-28 23:26:18,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states and 137 transitions. [2021-10-28 23:26:18,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 63. [2021-10-28 23:26:18,512 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 23:26:18,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:18,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2021-10-28 23:26:18,518 INFO L704 BuchiCegarLoop]: Abstraction has 63 states and 74 transitions. [2021-10-28 23:26:18,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:18,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:26:18,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:26:18,520 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 23:26:18,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:18,725 INFO L93 Difference]: Finished difference Result 195 states and 219 transitions. [2021-10-28 23:26:18,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:26:18,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 219 transitions. [2021-10-28 23:26:18,728 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 119 [2021-10-28 23:26:18,731 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 195 states and 219 transitions. [2021-10-28 23:26:18,732 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 146 [2021-10-28 23:26:18,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 146 [2021-10-28 23:26:18,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 219 transitions. [2021-10-28 23:26:18,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:18,733 INFO L681 BuchiCegarLoop]: Abstraction has 195 states and 219 transitions. [2021-10-28 23:26:18,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 219 transitions. [2021-10-28 23:26:18,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 65. [2021-10-28 23:26:18,739 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 23:26:18,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2021-10-28 23:26:18,740 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-10-28 23:26:18,740 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-10-28 23:26:18,740 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:26:18,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 76 transitions. [2021-10-28 23:26:18,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2021-10-28 23:26:18,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:18,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:18,742 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:26:18,742 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:18,742 INFO L791 eck$LassoCheckResult]: Stem: 1126#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 1089#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 1090#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 1075#L30 assume !(main_~l~0 > 1);main_#t~post5 := main_~r~0;main_~r~0 := main_#t~post5 - 1;havoc main_#t~post5; 1077#L59-1 [2021-10-28 23:26:18,742 INFO L793 eck$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 23:26:18,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:18,743 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 3 times [2021-10-28 23:26:18,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:18,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957137107] [2021-10-28 23:26:18,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:18,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:18,756 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:18,769 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:18,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:18,770 INFO L85 PathProgramCache]: Analyzing trace with hash -126564852, now seen corresponding path program 1 times [2021-10-28 23:26:18,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:18,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112285922] [2021-10-28 23:26:18,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:18,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:18,794 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 23:26:18,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:18,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112285922] [2021-10-28 23:26:18,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112285922] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:18,795 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:18,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:26:18,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200671456] [2021-10-28 23:26:18,795 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:26:18,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:18,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:26:18,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:26:18,797 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 23:26:18,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:18,875 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2021-10-28 23:26:18,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:26:18,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 138 transitions. [2021-10-28 23:26:18,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 57 [2021-10-28 23:26:18,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 120 states and 137 transitions. [2021-10-28 23:26:18,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2021-10-28 23:26:18,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 63 [2021-10-28 23:26:18,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 137 transitions. [2021-10-28 23:26:18,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:18,880 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 137 transitions. [2021-10-28 23:26:18,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 137 transitions. [2021-10-28 23:26:18,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 65. [2021-10-28 23:26:18,885 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 23:26:18,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2021-10-28 23:26:18,885 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-10-28 23:26:18,885 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-10-28 23:26:18,885 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:26:18,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 76 transitions. [2021-10-28 23:26:18,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2021-10-28 23:26:18,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:18,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:18,887 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:26:18,887 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:18,887 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 23:26:18,887 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 23:26:18,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:18,888 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 4 times [2021-10-28 23:26:18,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:18,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608336485] [2021-10-28 23:26:18,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:18,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:18,900 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:18,914 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:18,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:18,915 INFO L85 PathProgramCache]: Analyzing trace with hash 831355200, now seen corresponding path program 1 times [2021-10-28 23:26:18,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:18,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067795127] [2021-10-28 23:26:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:18,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:18,932 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:18,947 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:18,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:18,948 INFO L85 PathProgramCache]: Analyzing trace with hash -490035015, now seen corresponding path program 1 times [2021-10-28 23:26:18,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:18,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841398558] [2021-10-28 23:26:18,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:18,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:18,990 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 23:26:18,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:18,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841398558] [2021-10-28 23:26:18,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841398558] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:18,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:18,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:26:18,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252758434] [2021-10-28 23:26:19,182 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:19,182 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:19,183 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:19,183 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:19,183 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:26:19,183 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:19,183 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:19,183 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:19,183 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration5_Loop [2021-10-28 23:26:19,183 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:19,183 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:19,185 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 23:26:19,203 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 23:26:19,209 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 23:26:19,212 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 23:26:19,316 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:19,317 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:26:19,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:19,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:19,318 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:19,333 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:19,333 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:19,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:26:19,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:19,373 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:19,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:19,374 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:19,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:26:19,375 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:26:19,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:19,456 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:26:19,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:19,460 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:19,460 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:19,460 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:19,460 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:19,460 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:26:19,460 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:19,460 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:19,460 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:19,460 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration5_Loop [2021-10-28 23:26:19,461 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:19,461 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:19,462 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 23:26:19,484 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 23:26:19,487 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 23:26:19,490 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 23:26:19,579 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:19,579 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:26:19,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:19,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:19,581 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:19,587 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 23:26:19,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:19,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:19,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:19,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:19,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:19,601 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:19,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:19,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:26:19,623 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:26:19,628 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:26:19,628 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:26:19,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:19,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:19,632 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:19,640 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:26:19,640 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:26:19,640 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:26:19,640 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 23:26:19,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:26:19,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:19,684 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:26:19,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:19,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:19,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:19,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:26:19,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:19,858 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 23:26:19,860 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 23:26:19,860 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 23:26:19,894 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 23:26:19,894 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 23:26:19,895 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 23:26:19,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2021-10-28 23:26:19,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 76 transitions. Stem has 4 letters. Loop has 13 letters. [2021-10-28 23:26:19,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:19,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 76 transitions. Stem has 17 letters. Loop has 13 letters. [2021-10-28 23:26:19,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:19,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 76 transitions. Stem has 4 letters. Loop has 26 letters. [2021-10-28 23:26:19,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:19,900 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 145 transitions. [2021-10-28 23:26:19,901 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-28 23:26:19,903 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 120 states and 139 transitions. [2021-10-28 23:26:19,903 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-10-28 23:26:19,903 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2021-10-28 23:26:19,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 139 transitions. [2021-10-28 23:26:19,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:19,903 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 139 transitions. [2021-10-28 23:26:19,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 139 transitions. [2021-10-28 23:26:19,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2021-10-28 23:26:19,918 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 23:26:19,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2021-10-28 23:26:19,919 INFO L704 BuchiCegarLoop]: Abstraction has 119 states and 138 transitions. [2021-10-28 23:26:19,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:19,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:26:19,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:26:19,920 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 23:26:19,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:19,946 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2021-10-28 23:26:19,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:26:19,947 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 76 transitions. [2021-10-28 23:26:19,948 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2021-10-28 23:26:19,948 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 65 states and 75 transitions. [2021-10-28 23:26:19,948 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-10-28 23:26:19,949 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-10-28 23:26:19,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 75 transitions. [2021-10-28 23:26:19,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:19,949 INFO L681 BuchiCegarLoop]: Abstraction has 65 states and 75 transitions. [2021-10-28 23:26:19,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 75 transitions. [2021-10-28 23:26:19,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-10-28 23:26:19,951 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 23:26:19,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2021-10-28 23:26:19,952 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 75 transitions. [2021-10-28 23:26:19,952 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 75 transitions. [2021-10-28 23:26:19,952 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:26:19,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 75 transitions. [2021-10-28 23:26:19,953 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2021-10-28 23:26:19,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:19,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:19,954 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:26:19,954 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:19,954 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 23:26:19,954 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 23:26:19,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:19,955 INFO L85 PathProgramCache]: Analyzing trace with hash 28695791, now seen corresponding path program 1 times [2021-10-28 23:26:19,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:19,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538294754] [2021-10-28 23:26:19,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:19,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:19,965 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:20,026 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:20,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:20,041 INFO L85 PathProgramCache]: Analyzing trace with hash 15893544, now seen corresponding path program 2 times [2021-10-28 23:26:20,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:20,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043793758] [2021-10-28 23:26:20,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:20,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:20,068 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:20,087 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:20,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:20,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:20,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1026319878, now seen corresponding path program 1 times [2021-10-28 23:26:20,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:20,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518230324] [2021-10-28 23:26:20,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:20,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:20,171 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 23:26:20,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:20,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518230324] [2021-10-28 23:26:20,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518230324] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:20,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:20,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:26:20,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235536946] [2021-10-28 23:26:20,389 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:20,389 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:20,390 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:20,390 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:20,390 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:26:20,390 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:20,390 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:20,390 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:20,390 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration6_Loop [2021-10-28 23:26:20,390 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:20,391 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:20,392 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 23:26:20,395 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 23:26:20,397 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 23:26:20,415 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 23:26:20,492 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:20,492 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:26:20,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:20,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:20,496 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:20,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:26:20,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:20,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:20,531 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:26:20,531 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 23:26:20,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:20,571 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:20,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:20,576 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:20,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:20,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:20,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:26:20,620 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:26:20,620 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 23:26:20,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:20,661 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:20,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:20,662 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:20,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:20,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:20,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:26:20,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:20,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:20,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:20,776 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:20,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:26:20,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:20,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:26:21,193 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:26:21,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:21,198 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:21,198 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:21,198 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:21,198 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:21,198 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:26:21,198 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:21,198 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:21,198 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:21,198 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration6_Loop [2021-10-28 23:26:21,199 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:21,199 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:21,200 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 23:26:21,205 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 23:26:21,209 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 23:26:21,212 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 23:26:21,316 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:21,316 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:26:21,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:21,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:21,318 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:21,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:26:21,332 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 23:26:21,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:21,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:21,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:21,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:21,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:21,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:21,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:21,368 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:21,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:21,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:21,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:21,406 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:21,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:26:21,408 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 23:26:21,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:21,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:21,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:21,416 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:26:21,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:21,418 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:26:21,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:21,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:21,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:21,444 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:21,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:21,445 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:21,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:26:21,447 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 23:26:21,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:21,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:21,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:21,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:21,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:21,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:21,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:21,458 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:21,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:21,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:21,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:21,483 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:21,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:26:21,484 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 23:26:21,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:21,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:21,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:21,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:21,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:21,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:21,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:21,523 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:26:21,530 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:26:21,531 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:26:21,531 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:21,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:21,544 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:21,546 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:26:21,546 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:26:21,546 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:26:21,546 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 23:26:21,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:26:21,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:21,586 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:26:21,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:21,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:21,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:21,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:26:21,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:21,739 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 23:26:21,740 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 23:26:21,740 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 23:26:21,783 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 23:26:21,784 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 23:26:21,784 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 23:26:21,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2021-10-28 23:26:21,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 5 letters. Loop has 13 letters. [2021-10-28 23:26:21,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:21,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 18 letters. Loop has 13 letters. [2021-10-28 23:26:21,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:21,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 5 letters. Loop has 26 letters. [2021-10-28 23:26:21,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:21,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 151 transitions. [2021-10-28 23:26:21,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 23:26:21,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 123 states and 144 transitions. [2021-10-28 23:26:21,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-10-28 23:26:21,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-10-28 23:26:21,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 144 transitions. [2021-10-28 23:26:21,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:21,800 INFO L681 BuchiCegarLoop]: Abstraction has 123 states and 144 transitions. [2021-10-28 23:26:21,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states and 144 transitions. [2021-10-28 23:26:21,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2021-10-28 23:26:21,811 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 23:26:21,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2021-10-28 23:26:21,812 INFO L704 BuchiCegarLoop]: Abstraction has 121 states and 141 transitions. [2021-10-28 23:26:21,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:21,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:26:21,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:26:21,815 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 23:26:21,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:21,980 INFO L93 Difference]: Finished difference Result 402 states and 448 transitions. [2021-10-28 23:26:21,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:26:21,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 402 states and 448 transitions. [2021-10-28 23:26:21,985 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2021-10-28 23:26:21,988 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 402 states to 354 states and 396 transitions. [2021-10-28 23:26:21,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 89 [2021-10-28 23:26:21,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 89 [2021-10-28 23:26:21,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 354 states and 396 transitions. [2021-10-28 23:26:21,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:21,989 INFO L681 BuchiCegarLoop]: Abstraction has 354 states and 396 transitions. [2021-10-28 23:26:21,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states and 396 transitions. [2021-10-28 23:26:21,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 122. [2021-10-28 23:26:21,996 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 23:26:21,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 142 transitions. [2021-10-28 23:26:21,997 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 142 transitions. [2021-10-28 23:26:21,997 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 142 transitions. [2021-10-28 23:26:21,997 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:26:21,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 142 transitions. [2021-10-28 23:26:21,999 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 23:26:21,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:21,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:22,000 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:26:22,000 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:26:22,000 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 23:26:22,001 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 23:26:22,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:22,001 INFO L85 PathProgramCache]: Analyzing trace with hash 889569551, now seen corresponding path program 1 times [2021-10-28 23:26:22,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:22,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583891575] [2021-10-28 23:26:22,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:22,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:22,018 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:22,045 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:22,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:22,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2032341595, now seen corresponding path program 1 times [2021-10-28 23:26:22,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:22,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947216885] [2021-10-28 23:26:22,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:22,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:22,113 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 23:26:22,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:22,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947216885] [2021-10-28 23:26:22,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947216885] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:22,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:26:22,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:26:22,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510469390] [2021-10-28 23:26:22,115 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:26:22,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:22,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:26:22,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:26:22,116 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 23:26:22,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:22,269 INFO L93 Difference]: Finished difference Result 213 states and 239 transitions. [2021-10-28 23:26:22,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:26:22,270 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 213 states and 239 transitions. [2021-10-28 23:26:22,272 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 23:26:22,274 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 213 states to 199 states and 225 transitions. [2021-10-28 23:26:22,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-10-28 23:26:22,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-10-28 23:26:22,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 199 states and 225 transitions. [2021-10-28 23:26:22,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:22,275 INFO L681 BuchiCegarLoop]: Abstraction has 199 states and 225 transitions. [2021-10-28 23:26:22,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states and 225 transitions. [2021-10-28 23:26:22,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 164. [2021-10-28 23:26:22,279 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 23:26:22,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 186 transitions. [2021-10-28 23:26:22,280 INFO L704 BuchiCegarLoop]: Abstraction has 164 states and 186 transitions. [2021-10-28 23:26:22,280 INFO L587 BuchiCegarLoop]: Abstraction has 164 states and 186 transitions. [2021-10-28 23:26:22,281 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 23:26:22,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states and 186 transitions. [2021-10-28 23:26:22,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 23:26:22,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:22,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:22,283 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:26:22,283 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 23:26:22,283 INFO L791 eck$LassoCheckResult]: Stem: 2931#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 2890#L-1 main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~nondet6, main_#t~nondet7, main_#t~post8, main_#t~post9, main_~argc, main_~argv.base, main_~argv.offset, main_~n~0, main_~l~0, main_~r~0, main_~i~0, main_~j~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~n~0;havoc main_~l~0;havoc main_~r~0;havoc main_~i~0;havoc main_~j~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 2891#L27 assume !!(1 <= main_~n~0 && main_~n~0 <= 1000000);main_~l~0 := 1 + (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2);main_~r~0 := main_~n~0; 2880#L30 assume main_~l~0 > 1;main_#t~post4 := main_~l~0;main_~l~0 := main_#t~post4 - 1;havoc main_#t~post4; 2881#L59-1 assume !!(main_~r~0 > 1);main_~i~0 := main_~l~0;main_~j~0 := 2 * main_~l~0; 2908#L38-2 assume !!(main_~j~0 <= main_~r~0); 2918#L39 [2021-10-28 23:26:22,284 INFO L793 eck$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 23:26:22,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:22,284 INFO L85 PathProgramCache]: Analyzing trace with hash 889569551, now seen corresponding path program 2 times [2021-10-28 23:26:22,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:22,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918549254] [2021-10-28 23:26:22,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:22,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:22,293 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:22,335 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:22,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:22,349 INFO L85 PathProgramCache]: Analyzing trace with hash -20833724, now seen corresponding path program 1 times [2021-10-28 23:26:22,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:22,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357432109] [2021-10-28 23:26:22,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:22,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:22,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:22,377 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:22,414 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:22,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:22,422 INFO L85 PathProgramCache]: Analyzing trace with hash -387380874, now seen corresponding path program 1 times [2021-10-28 23:26:22,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:22,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621087840] [2021-10-28 23:26:22,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:22,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:22,499 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 23:26:22,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:22,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621087840] [2021-10-28 23:26:22,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621087840] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:22,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488522935] [2021-10-28 23:26:22,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:22,501 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:22,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:22,502 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:26:22,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-28 23:26:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:22,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:26:22,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:23,027 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 23:26:23,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488522935] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:26:23,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:26:23,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2021-10-28 23:26:23,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401532037] [2021-10-28 23:26:23,358 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:23,358 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:23,358 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:23,358 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:23,358 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:26:23,359 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:23,359 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:23,359 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:23,359 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration8_Loop [2021-10-28 23:26:23,359 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:23,359 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:23,360 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 23:26:23,363 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 23:26:23,376 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 23:26:23,379 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 23:26:23,446 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:23,446 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:26:23,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:23,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:23,451 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:23,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:23,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:23,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:26:23,476 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:26:23,476 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 23:26:23,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:23,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:23,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:23,513 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:23,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:26:23,563 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:23,563 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:23,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:23,631 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:23,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:23,633 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:23,636 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:26:23,636 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:23,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:26:23,708 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:26:23,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:23,711 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:23,711 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:23,711 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:23,711 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:23,711 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:26:23,711 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:23,711 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:23,711 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:23,711 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration8_Loop [2021-10-28 23:26:23,712 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:23,712 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:23,713 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 23:26:23,717 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 23:26:23,729 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 23:26:23,732 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 23:26:23,810 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:23,810 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:26:23,811 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:23,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:23,816 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:23,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:23,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:23,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:23,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:23,830 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:26:23,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:23,831 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:26:23,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:23,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:26:23,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:23,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:23,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:23,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:23,885 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:23,886 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 23:26:23,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:26:23,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:23,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:23,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:23,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:23,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:23,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:23,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:23,914 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:26:23,919 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:26:23,919 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:26:23,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:23,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:23,927 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:23,929 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:26:23,929 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:26:23,930 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:26:23,930 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 23:26:23,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:26:23,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 23:26:23,955 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:26:23,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:23,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:23,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:24,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:26:24,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:24,317 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 23:26:24,317 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 23:26:24,318 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 23:26:24,677 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 23:26:24,678 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 23:26:24,678 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 23:26:24,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 92 transitions. [2021-10-28 23:26:24,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 92 transitions. Stem has 6 letters. Loop has 23 letters. [2021-10-28 23:26:24,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:24,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 92 transitions. Stem has 29 letters. Loop has 23 letters. [2021-10-28 23:26:24,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:24,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 92 transitions. Stem has 6 letters. Loop has 46 letters. [2021-10-28 23:26:24,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:24,680 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 806 states and 891 transitions. [2021-10-28 23:26:24,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 23:26:24,694 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 806 states to 576 states and 640 transitions. [2021-10-28 23:26:24,695 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-10-28 23:26:24,695 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-10-28 23:26:24,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 576 states and 640 transitions. [2021-10-28 23:26:24,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:24,695 INFO L681 BuchiCegarLoop]: Abstraction has 576 states and 640 transitions. [2021-10-28 23:26:24,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states and 640 transitions. [2021-10-28 23:26:24,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 396. [2021-10-28 23:26:24,705 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 23:26:24,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 445 transitions. [2021-10-28 23:26:24,707 INFO L704 BuchiCegarLoop]: Abstraction has 396 states and 445 transitions. [2021-10-28 23:26:24,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:24,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:26:24,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:26:24,709 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 23:26:24,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:24,943 INFO L93 Difference]: Finished difference Result 548 states and 595 transitions. [2021-10-28 23:26:24,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:26:24,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 548 states and 595 transitions. [2021-10-28 23:26:24,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 23:26:24,952 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 548 states to 303 states and 341 transitions. [2021-10-28 23:26:24,952 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-28 23:26:24,952 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-28 23:26:24,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 303 states and 341 transitions. [2021-10-28 23:26:24,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:24,953 INFO L681 BuchiCegarLoop]: Abstraction has 303 states and 341 transitions. [2021-10-28 23:26:24,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states and 341 transitions. [2021-10-28 23:26:24,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 211. [2021-10-28 23:26:24,959 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 23:26:24,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 239 transitions. [2021-10-28 23:26:24,960 INFO L704 BuchiCegarLoop]: Abstraction has 211 states and 239 transitions. [2021-10-28 23:26:24,960 INFO L587 BuchiCegarLoop]: Abstraction has 211 states and 239 transitions. [2021-10-28 23:26:24,960 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 23:26:24,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 239 transitions. [2021-10-28 23:26:24,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 23:26:24,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:24,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:24,963 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 23:26:24,963 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 23:26:24,963 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 23:26:24,963 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 23:26:24,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:24,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1677155888, now seen corresponding path program 1 times [2021-10-28 23:26:24,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:24,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021412542] [2021-10-28 23:26:24,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:24,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:24,976 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:24,988 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:24,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:24,989 INFO L85 PathProgramCache]: Analyzing trace with hash 146732118, now seen corresponding path program 2 times [2021-10-28 23:26:24,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:24,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219307662] [2021-10-28 23:26:24,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:24,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:25,013 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:25,037 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:25,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:25,042 INFO L85 PathProgramCache]: Analyzing trace with hash 601078183, now seen corresponding path program 1 times [2021-10-28 23:26:25,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:25,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254573602] [2021-10-28 23:26:25,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:25,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:25,061 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:25,095 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:25,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:25,438 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:25,439 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:25,439 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:25,439 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:25,439 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:26:25,439 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:25,439 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:25,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:25,440 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration9_Loop [2021-10-28 23:26:25,440 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:25,440 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:25,441 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 23:26:25,443 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 23:26:25,448 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 23:26:25,451 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 23:26:25,530 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:25,530 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:26:25,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:25,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:25,532 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:25,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:25,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:25,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:26:25,564 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:26:25,564 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 23:26:25,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:25,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:25,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:25,604 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:25,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:25,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:25,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:26:25,626 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:26:25,626 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 23:26:25,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:25,664 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:25,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:25,665 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:25,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:25,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:25,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:26:25,690 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:26:25,690 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 23:26:25,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-28 23:26:25,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:25,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:25,714 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:25,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:25,715 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:25,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:26:25,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:25,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:25,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:25,799 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:25,808 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:26:25,808 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:25,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:26:25,998 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:26:26,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:26,001 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:26,001 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:26,001 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:26,001 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:26,001 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:26:26,001 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:26,001 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:26,002 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:26,002 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration9_Loop [2021-10-28 23:26:26,002 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:26,002 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:26,003 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 23:26:26,012 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 23:26:26,015 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 23:26:26,019 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 23:26:26,098 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:26,098 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:26:26,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:26,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:26,102 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:26,112 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 23:26:26,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:26,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:26,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:26,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:26,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:26,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:26,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:26,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:26:26,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:26,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:26,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:26,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:26,176 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:26,178 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 23:26:26,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:26,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:26,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:26,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:26,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:26,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 23:26:26,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:26,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:26,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:26,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-28 23:26:26,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:26,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:26,210 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:26,212 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 23:26:26,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 23:26:26,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:26,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:26,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:26,220 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:26:26,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:26,221 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:26:26,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:26,249 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:26,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:26,269 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:26,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:26,270 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:26,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:26:26,272 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 23:26:26,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:26,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:26,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:26,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:26,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:26,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:26,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:26,307 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:26:26,311 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:26:26,311 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:26:26,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:26,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:26,312 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:26,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 23:26:26,313 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:26:26,314 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:26:26,314 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:26:26,314 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 23:26:26,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:26,339 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:26:26,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:26,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:26,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:26,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 23:26:26,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:26,938 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 23:26:26,939 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 23:26:26,939 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 23:26:27,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:27,545 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 23:26:27,546 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 23:26:27,546 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 23:26:27,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 53 transitions. [2021-10-28 23:26:27,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 53 transitions. Stem has 18 letters. Loop has 23 letters. [2021-10-28 23:26:27,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:27,547 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:26:27,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:27,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:27,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:27,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 23:26:27,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:28,162 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 23:26:28,163 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 23:26:28,163 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 23:26:28,837 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 23:26:28,838 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 23:26:28,839 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 23:26:28,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 64 transitions. [2021-10-28 23:26:28,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 64 transitions. Stem has 18 letters. Loop has 23 letters. [2021-10-28 23:26:28,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:28,840 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:26:28,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:28,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:28,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:28,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 23:26:28,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:29,440 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 23:26:29,440 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 23:26:30,042 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 23:26:30,042 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 23:26:30,043 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 23:26:30,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 101 transitions. [2021-10-28 23:26:30,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 101 transitions. Stem has 18 letters. Loop has 23 letters. [2021-10-28 23:26:30,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:30,051 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:26:30,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:30,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:30,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:30,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 23:26:30,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:30,656 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 23:26:30,657 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 23:26:30,657 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 23:26:31,170 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 23:26:31,179 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 23:26:31,180 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 23:26:31,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 103 transitions. [2021-10-28 23:26:31,180 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 103 transitions. Stem has 18 letters. Loop has 23 letters. [2021-10-28 23:26:31,181 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:31,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 103 transitions. Stem has 41 letters. Loop has 23 letters. [2021-10-28 23:26:31,181 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:31,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 103 transitions. Stem has 18 letters. Loop has 46 letters. [2021-10-28 23:26:31,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:31,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 812 states and 890 transitions. [2021-10-28 23:26:31,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 23:26:31,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 812 states to 568 states and 630 transitions. [2021-10-28 23:26:31,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2021-10-28 23:26:31,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-10-28 23:26:31,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 568 states and 630 transitions. [2021-10-28 23:26:31,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:31,199 INFO L681 BuchiCegarLoop]: Abstraction has 568 states and 630 transitions. [2021-10-28 23:26:31,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states and 630 transitions. [2021-10-28 23:26:31,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 384. [2021-10-28 23:26:31,208 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 23:26:31,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 433 transitions. [2021-10-28 23:26:31,210 INFO L704 BuchiCegarLoop]: Abstraction has 384 states and 433 transitions. [2021-10-28 23:26:31,210 INFO L587 BuchiCegarLoop]: Abstraction has 384 states and 433 transitions. [2021-10-28 23:26:31,210 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 23:26:31,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 384 states and 433 transitions. [2021-10-28 23:26:31,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 23:26:31,212 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:31,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:31,214 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 23:26:31,214 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 23:26:31,214 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 23:26:31,215 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 23:26:31,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:31,215 INFO L85 PathProgramCache]: Analyzing trace with hash 870747555, now seen corresponding path program 1 times [2021-10-28 23:26:31,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:31,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785128815] [2021-10-28 23:26:31,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:31,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:31,228 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:31,241 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:31,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:31,242 INFO L85 PathProgramCache]: Analyzing trace with hash 739173976, now seen corresponding path program 3 times [2021-10-28 23:26:31,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:31,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672039672] [2021-10-28 23:26:31,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:31,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:31,255 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:31,265 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:31,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:31,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1242964598, now seen corresponding path program 1 times [2021-10-28 23:26:31,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:31,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182402203] [2021-10-28 23:26:31,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:31,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:31,399 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 23:26:31,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:31,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182402203] [2021-10-28 23:26:31,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182402203] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:31,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93972256] [2021-10-28 23:26:31,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:31,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:31,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:31,401 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:26:31,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-28 23:26:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:31,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:26:31,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:32,080 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 23:26:32,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93972256] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:32,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:26:32,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-28 23:26:32,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023288142] [2021-10-28 23:26:32,399 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:32,399 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:32,399 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:32,400 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:32,401 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:26:32,401 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:32,401 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:32,401 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:32,401 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration10_Loop [2021-10-28 23:26:32,401 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:32,401 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:32,402 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 23:26:32,405 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 23:26:32,410 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 23:26:32,413 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 23:26:32,489 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:32,490 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:26:32,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:32,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:32,496 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:32,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:32,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:32,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 23:26:32,519 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:26:32,520 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 23:26:32,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:32,554 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:32,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:32,555 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:32,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:32,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:32,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 23:26:32,579 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:26:32,580 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 23:26:32,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-10-28 23:26:32,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:32,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:32,605 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:32,607 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:32,607 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:32,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 23:26:32,621 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:26:32,621 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 23:26:32,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:32,642 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:32,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:32,642 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:32,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 23:26:32,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:32,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:32,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-28 23:26:32,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:32,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:32,680 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:32,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 23:26:32,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:26:32,681 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:32,765 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:26:32,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-28 23:26:32,768 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:32,768 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:32,768 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:32,768 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:32,768 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:26:32,768 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:32,768 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:32,768 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:32,768 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration10_Loop [2021-10-28 23:26:32,768 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:32,769 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:32,769 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 23:26:32,771 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 23:26:32,779 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 23:26:32,784 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 23:26:32,858 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:32,858 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:26:32,858 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:32,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:32,859 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:32,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 23:26:32,861 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 23:26:32,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:32,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:32,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:32,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:32,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:32,868 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:32,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:32,870 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:32,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:32,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:32,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:32,905 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:32,912 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 23:26:32,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:32,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:32,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:32,922 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:26:32,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:32,922 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:26:32,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:32,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 23:26:32,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:32,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:32,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:32,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:32,972 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:32,974 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 23:26:32,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 23:26:32,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:32,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:32,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:32,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:32,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:32,982 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:32,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:32,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:33,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-28 23:26:33,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:33,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:33,006 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:33,009 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:33,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 23:26:33,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:33,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:33,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:33,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:33,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:33,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:33,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:33,020 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:26:33,024 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:26:33,024 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:26:33,024 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:33,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:33,025 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:33,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 23:26:33,026 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:26:33,026 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:26:33,026 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:26:33,026 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 23:26:33,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:33,046 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:26:33,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:33,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:33,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:33,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:26:33,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:33,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:33,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:33,441 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 23:26:33,442 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 23:26:33,850 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 23:26:33,850 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 23:26:33,851 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 23:26:33,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 162 transitions. [2021-10-28 23:26:33,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 162 transitions. Stem has 28 letters. Loop has 23 letters. [2021-10-28 23:26:33,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:33,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 162 transitions. Stem has 51 letters. Loop has 23 letters. [2021-10-28 23:26:33,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:33,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 162 transitions. Stem has 28 letters. Loop has 46 letters. [2021-10-28 23:26:33,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:33,853 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1275 states and 1405 transitions. [2021-10-28 23:26:33,863 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-10-28 23:26:33,871 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1275 states to 1091 states and 1206 transitions. [2021-10-28 23:26:33,872 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2021-10-28 23:26:33,872 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2021-10-28 23:26:33,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1091 states and 1206 transitions. [2021-10-28 23:26:33,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:33,873 INFO L681 BuchiCegarLoop]: Abstraction has 1091 states and 1206 transitions. [2021-10-28 23:26:33,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states and 1206 transitions. [2021-10-28 23:26:33,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 783. [2021-10-28 23:26:33,890 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 23:26:33,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 875 transitions. [2021-10-28 23:26:33,893 INFO L704 BuchiCegarLoop]: Abstraction has 783 states and 875 transitions. [2021-10-28 23:26:33,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:33,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:26:33,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:26:33,894 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 23:26:34,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:34,365 INFO L93 Difference]: Finished difference Result 2011 states and 2199 transitions. [2021-10-28 23:26:34,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:26:34,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2011 states and 2199 transitions. [2021-10-28 23:26:34,380 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-10-28 23:26:34,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2011 states to 1679 states and 1839 transitions. [2021-10-28 23:26:34,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2021-10-28 23:26:34,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2021-10-28 23:26:34,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1679 states and 1839 transitions. [2021-10-28 23:26:34,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:34,393 INFO L681 BuchiCegarLoop]: Abstraction has 1679 states and 1839 transitions. [2021-10-28 23:26:34,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states and 1839 transitions. [2021-10-28 23:26:34,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 965. [2021-10-28 23:26:34,416 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 23:26:34,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1075 transitions. [2021-10-28 23:26:34,419 INFO L704 BuchiCegarLoop]: Abstraction has 965 states and 1075 transitions. [2021-10-28 23:26:34,420 INFO L587 BuchiCegarLoop]: Abstraction has 965 states and 1075 transitions. [2021-10-28 23:26:34,420 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 23:26:34,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 965 states and 1075 transitions. [2021-10-28 23:26:34,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-10-28 23:26:34,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:34,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:34,426 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 23:26:34,426 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 23:26:34,426 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 23:26:34,426 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 23:26:34,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:34,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1634846562, now seen corresponding path program 1 times [2021-10-28 23:26:34,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:34,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420773319] [2021-10-28 23:26:34,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:34,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:34,440 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:34,454 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:34,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:34,454 INFO L85 PathProgramCache]: Analyzing trace with hash 739173976, now seen corresponding path program 4 times [2021-10-28 23:26:34,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:34,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892486007] [2021-10-28 23:26:34,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:34,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:34,466 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:34,475 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:34,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:34,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1847878103, now seen corresponding path program 1 times [2021-10-28 23:26:34,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:34,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039273411] [2021-10-28 23:26:34,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:34,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:34,491 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:34,511 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:34,778 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:34,778 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:34,778 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:34,778 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:34,778 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:26:34,778 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:34,779 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:34,779 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:34,779 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration11_Loop [2021-10-28 23:26:34,779 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:34,779 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:34,780 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 23:26:34,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:26:34,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:26:34,801 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 23:26:34,865 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:34,865 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:26:34,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:34,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:34,866 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:34,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:34,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:34,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 23:26:34,903 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:26:34,904 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 23:26:34,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:34,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:34,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:34,936 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:34,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 23:26:34,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:34,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:34,951 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:26:34,951 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 23:26:34,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-28 23:26:34,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:34,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:34,974 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:34,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 23:26:34,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:34,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:35,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:35,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:35,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:35,013 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:35,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 23:26:35,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:26:35,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:35,104 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:26:35,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-28 23:26:35,107 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:35,107 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:35,107 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:35,107 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:35,107 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:26:35,107 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:35,107 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:35,108 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:35,108 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration11_Loop [2021-10-28 23:26:35,108 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:35,108 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:35,108 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 23:26:35,111 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 23:26:35,115 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 23:26:35,124 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 23:26:35,171 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:35,171 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:26:35,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:35,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:35,178 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:35,180 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 23:26:35,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:35,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:35,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:35,190 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:26:35,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:35,191 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:26:35,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:35,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 23:26:35,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:35,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:35,228 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:35,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:35,229 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:35,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 23:26:35,230 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 23:26:35,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:35,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:35,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:35,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:35,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:35,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:35,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:35,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:35,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:35,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:35,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:35,262 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:35,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 23:26:35,263 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 23:26:35,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:35,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:35,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:35,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:35,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:35,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:35,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:35,275 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:26:35,279 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:26:35,279 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:26:35,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:35,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:35,280 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:35,281 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:26:35,281 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:26:35,281 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:26:35,281 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 23:26:35,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 23:26:35,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:35,303 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:26:35,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:35,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:35,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:35,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:26:35,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:35,636 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 23:26:35,637 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 23:26:35,637 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 23:26:36,015 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 23:26:36,016 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 23:26:36,016 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 23:26:36,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 159 transitions. [2021-10-28 23:26:36,017 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 159 transitions. Stem has 36 letters. Loop has 23 letters. [2021-10-28 23:26:36,017 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:36,017 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:26:36,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:36,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:36,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:36,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:26:36,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:36,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:36,421 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 23:26:36,421 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 23:26:36,422 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 23:26:36,752 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 23:26:36,753 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 23:26:36,753 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 23:26:36,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 159 transitions. [2021-10-28 23:26:36,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 159 transitions. Stem has 36 letters. Loop has 23 letters. [2021-10-28 23:26:36,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:36,754 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:26:36,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:36,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:36,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:36,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:26:36,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:37,168 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 23:26:37,169 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 23:26:37,169 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 23:26:37,606 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 23:26:37,606 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 23:26:37,607 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 23:26:37,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 160 transitions. [2021-10-28 23:26:37,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 160 transitions. Stem has 36 letters. Loop has 23 letters. [2021-10-28 23:26:37,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:37,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 160 transitions. Stem has 59 letters. Loop has 23 letters. [2021-10-28 23:26:37,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:37,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 160 transitions. Stem has 36 letters. Loop has 46 letters. [2021-10-28 23:26:37,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:37,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2357 states and 2561 transitions. [2021-10-28 23:26:37,626 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-10-28 23:26:37,638 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2357 states to 1581 states and 1731 transitions. [2021-10-28 23:26:37,638 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2021-10-28 23:26:37,639 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115 [2021-10-28 23:26:37,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1581 states and 1731 transitions. [2021-10-28 23:26:37,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:37,639 INFO L681 BuchiCegarLoop]: Abstraction has 1581 states and 1731 transitions. [2021-10-28 23:26:37,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states and 1731 transitions. [2021-10-28 23:26:37,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 785. [2021-10-28 23:26:37,659 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 23:26:37,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 872 transitions. [2021-10-28 23:26:37,662 INFO L704 BuchiCegarLoop]: Abstraction has 785 states and 872 transitions. [2021-10-28 23:26:37,662 INFO L587 BuchiCegarLoop]: Abstraction has 785 states and 872 transitions. [2021-10-28 23:26:37,662 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 23:26:37,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 785 states and 872 transitions. [2021-10-28 23:26:37,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2021-10-28 23:26:37,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:37,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:37,669 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 23:26:37,669 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 23:26:37,669 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 23:26:37,669 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 23:26:37,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:37,670 INFO L85 PathProgramCache]: Analyzing trace with hash 946074286, now seen corresponding path program 1 times [2021-10-28 23:26:37,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:37,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452486443] [2021-10-28 23:26:37,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:37,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:37,694 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:37,710 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:37,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:37,711 INFO L85 PathProgramCache]: Analyzing trace with hash 354378664, now seen corresponding path program 1 times [2021-10-28 23:26:37,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:37,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696634589] [2021-10-28 23:26:37,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:37,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:37,740 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:37,773 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:37,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:37,774 INFO L85 PathProgramCache]: Analyzing trace with hash -478626213, now seen corresponding path program 2 times [2021-10-28 23:26:37,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:37,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832976325] [2021-10-28 23:26:37,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:37,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:37,812 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:37,841 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:38,180 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:38,181 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:38,181 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:38,181 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:38,181 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:26:38,181 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:38,181 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:38,181 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:38,181 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration12_Loop [2021-10-28 23:26:38,181 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:38,181 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:38,182 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 23:26:38,189 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 23:26:38,192 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 23:26:38,206 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 23:26:38,298 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:38,298 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:26:38,298 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:38,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:38,304 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:38,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:38,306 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:38,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 23:26:38,328 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:26:38,328 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 23:26:38,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-28 23:26:38,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:38,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:38,354 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:38,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 23:26:38,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:38,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:38,365 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:26:38,365 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 23:26:38,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:38,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:38,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:38,389 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:38,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 23:26:38,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:26:38,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:38,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:38,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:38,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:38,430 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:38,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 23:26:38,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:26:38,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:26:38,543 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:26:38,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:38,546 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:38,546 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:38,546 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:38,546 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:38,546 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:26:38,546 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:38,547 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:38,547 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:38,547 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration12_Loop [2021-10-28 23:26:38,547 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:38,547 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:38,547 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 23:26:38,550 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 23:26:38,555 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 23:26:38,566 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 23:26:38,636 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:38,637 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:26:38,637 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:38,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:38,638 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:38,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 23:26:38,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:38,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:38,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:38,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:38,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:38,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:38,647 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:38,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:38,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:38,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-10-28 23:26:38,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:38,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:38,669 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:38,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 23:26:38,672 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 23:26:38,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:38,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:38,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:38,680 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:26:38,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:38,681 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:26:38,681 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:38,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:38,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:38,705 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:38,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:38,705 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:38,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 23:26:38,707 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 23:26:38,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:38,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:38,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:38,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:38,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:38,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:38,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:38,743 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:26:38,751 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:26:38,751 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:26:38,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:38,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:38,752 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:38,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 23:26:38,753 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:26:38,753 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:26:38,753 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:26:38,753 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 23:26:38,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:38,775 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:26:38,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:38,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:38,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:38,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:26:38,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:39,219 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 23:26:39,219 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 23:26:39,219 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 23:26:39,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:39,400 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 23:26:39,400 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 23:26:39,400 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 23:26:39,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 58 transitions. [2021-10-28 23:26:39,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 58 transitions. Stem has 37 letters. Loop has 23 letters. [2021-10-28 23:26:39,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:39,401 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:26:39,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:39,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:39,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:39,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:26:39,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:39,798 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 23:26:39,798 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 23:26:39,799 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 23:26:39,981 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 23:26:39,982 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 23:26:39,982 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 23:26:39,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 58 transitions. [2021-10-28 23:26:39,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 58 transitions. Stem has 37 letters. Loop has 23 letters. [2021-10-28 23:26:39,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:39,982 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:26:39,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:40,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:40,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:40,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:26:40,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:40,402 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 23:26:40,402 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 23:26:40,402 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 23:26:40,672 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 23:26:40,673 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 23:26:40,673 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 23:26:40,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 124 transitions. [2021-10-28 23:26:40,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 124 transitions. Stem has 37 letters. Loop has 23 letters. [2021-10-28 23:26:40,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:40,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 124 transitions. Stem has 60 letters. Loop has 23 letters. [2021-10-28 23:26:40,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:40,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 124 transitions. Stem has 37 letters. Loop has 46 letters. [2021-10-28 23:26:40,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:40,677 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2401 states and 2589 transitions. [2021-10-28 23:26:40,695 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:26:40,696 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2401 states to 0 states and 0 transitions. [2021-10-28 23:26:40,696 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:26:40,696 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:26:40,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:26:40,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:26:40,697 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:26:40,697 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:26:40,697 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:26:40,697 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-28 23:26:40,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:26:40,697 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:26:40,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:26:40,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:26:40 BoogieIcfgContainer [2021-10-28 23:26:40,704 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:26:40,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:26:40,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:26:40,705 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:26:40,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:26:14" (3/4) ... [2021-10-28 23:26:40,708 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:26:40,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:26:40,710 INFO L168 Benchmark]: Toolchain (without parser) took 26968.63 ms. Allocated memory was 111.1 MB in the beginning and 270.5 MB in the end (delta: 159.4 MB). Free memory was 73.0 MB in the beginning and 168.3 MB in the end (delta: -95.3 MB). Peak memory consumption was 63.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:40,710 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 111.1 MB. Free memory was 89.9 MB in the beginning and 89.8 MB in the end (delta: 74.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:26:40,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.97 ms. Allocated memory is still 111.1 MB. Free memory was 72.8 MB in the beginning and 85.9 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:40,711 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.77 ms. Allocated memory is still 111.1 MB. Free memory was 85.9 MB in the beginning and 84.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:40,712 INFO L168 Benchmark]: Boogie Preprocessor took 29.80 ms. Allocated memory is still 111.1 MB. Free memory was 83.9 MB in the beginning and 82.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:40,712 INFO L168 Benchmark]: RCFGBuilder took 558.84 ms. Allocated memory is still 111.1 MB. Free memory was 82.9 MB in the beginning and 70.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:40,712 INFO L168 Benchmark]: BuchiAutomizer took 25926.76 ms. Allocated memory was 111.1 MB in the beginning and 270.5 MB in the end (delta: 159.4 MB). Free memory was 70.3 MB in the beginning and 168.3 MB in the end (delta: -98.0 MB). Peak memory consumption was 62.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:40,713 INFO L168 Benchmark]: Witness Printer took 4.15 ms. Allocated memory is still 270.5 MB. Free memory is still 168.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:26:40,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 111.1 MB. Free memory was 89.9 MB in the beginning and 89.8 MB in the end (delta: 74.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 397.97 ms. Allocated memory is still 111.1 MB. Free memory was 72.8 MB in the beginning and 85.9 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.77 ms. Allocated memory is still 111.1 MB. Free memory was 85.9 MB in the beginning and 84.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.80 ms. Allocated memory is still 111.1 MB. Free memory was 83.9 MB in the beginning and 82.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 558.84 ms. Allocated memory is still 111.1 MB. Free memory was 82.9 MB in the beginning and 70.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 25926.76 ms. Allocated memory was 111.1 MB in the beginning and 270.5 MB in the end (delta: 159.4 MB). Free memory was 70.3 MB in the beginning and 168.3 MB in the end (delta: -98.0 MB). Peak memory consumption was 62.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.15 ms. Allocated memory is still 270.5 MB. Free memory is still 168.3 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 25.8s and 13 iterations. TraceHistogramMax:2. Analysis of lassos took 12.2s. Construction of modules took 2.7s. Büchi inclusion checks took 10.2s. 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 0.1s 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, 2.7s 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: 15ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:26:40,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:40,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2021-10-28 23:26:41,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d587c3e3-ee6a-420e-8777-39dce7a7a73c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...