./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/heapsort.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN --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 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:36:05,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:36:05,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:36:05,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:36:05,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:36:05,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:36:05,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:36:05,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:36:05,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:36:05,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:36:05,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:36:05,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:36:05,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:36:05,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:36:05,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:36:05,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:36:05,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:36:05,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:36:05,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:36:05,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:36:05,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:36:05,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:36:05,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:36:05,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:36:05,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:36:05,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:36:05,517 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:36:05,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:36:05,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:36:05,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:36:05,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:36:05,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:36:05,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:36:05,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:36:05,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:36:05,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:36:05,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:36:05,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:36:05,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:36:05,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:36:05,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:36:05,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 12:36:05,554 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:36:05,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:36:05,555 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:36:05,555 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:36:05,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:36:05,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:36:05,557 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:36:05,557 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 12:36:05,557 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 12:36:05,558 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 12:36:05,558 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 12:36:05,558 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 12:36:05,558 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 12:36:05,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:36:05,559 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:36:05,559 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:36:05,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:36:05,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:36:05,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:36:05,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 12:36:05,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 12:36:05,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 12:36:05,561 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:36:05,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:36:05,562 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 12:36:05,562 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:36:05,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 12:36:05,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:36:05,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:36:05,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:36:05,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:36:05,565 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 12:36:05,565 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_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e7c8e5dc2a9e8f11b25d1bb9948f05f37b9553e3dc9f8bd8213088dea43cb37 [2022-11-20 12:36:05,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:36:05,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:36:05,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:36:05,916 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:36:05,916 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:36:05,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/loop-invgen/heapsort.i [2022-11-20 12:36:08,971 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:36:09,184 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:36:09,185 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/sv-benchmarks/c/loop-invgen/heapsort.i [2022-11-20 12:36:09,192 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/data/918f1334d/37453248dfe449608988b685cc97ef1c/FLAG62031bd17 [2022-11-20 12:36:09,207 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/data/918f1334d/37453248dfe449608988b685cc97ef1c [2022-11-20 12:36:09,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:36:09,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:36:09,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:36:09,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:36:09,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:36:09,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:36:09" (1/1) ... [2022-11-20 12:36:09,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547e3019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09, skipping insertion in model container [2022-11-20 12:36:09,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:36:09" (1/1) ... [2022-11-20 12:36:09,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:36:09,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:36:09,387 WARN L237 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_0e4ba57f-33a5-424f-8623-3da75ef5d25a/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2022-11-20 12:36:09,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:36:09,422 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:36:09,446 WARN L237 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_0e4ba57f-33a5-424f-8623-3da75ef5d25a/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2022-11-20 12:36:09,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:36:09,468 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:36:09,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09 WrapperNode [2022-11-20 12:36:09,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:36:09,469 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:36:09,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:36:09,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:36:09,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09" (1/1) ... [2022-11-20 12:36:09,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09" (1/1) ... [2022-11-20 12:36:09,506 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 158 [2022-11-20 12:36:09,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:36:09,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:36:09,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:36:09,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:36:09,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09" (1/1) ... [2022-11-20 12:36:09,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09" (1/1) ... [2022-11-20 12:36:09,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09" (1/1) ... [2022-11-20 12:36:09,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09" (1/1) ... [2022-11-20 12:36:09,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09" (1/1) ... [2022-11-20 12:36:09,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09" (1/1) ... [2022-11-20 12:36:09,530 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09" (1/1) ... [2022-11-20 12:36:09,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09" (1/1) ... [2022-11-20 12:36:09,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:36:09,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:36:09,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:36:09,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:36:09,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09" (1/1) ... [2022-11-20 12:36:09,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:09,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:09,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:09,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 12:36:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:36:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:36:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:36:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:36:09,711 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:36:09,714 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:36:09,949 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:36:09,956 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:36:09,956 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:36:09,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:36:09 BoogieIcfgContainer [2022-11-20 12:36:09,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:36:09,960 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 12:36:09,966 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 12:36:09,970 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 12:36:09,971 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:36:09,971 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:36:09" (1/3) ... [2022-11-20 12:36:09,973 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9bc037f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:36:09, skipping insertion in model container [2022-11-20 12:36:09,982 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:36:09,983 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:09" (2/3) ... [2022-11-20 12:36:09,983 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9bc037f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:36:09, skipping insertion in model container [2022-11-20 12:36:09,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:36:09,983 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:36:09" (3/3) ... [2022-11-20 12:36:09,985 INFO L332 chiAutomizerObserver]: Analyzing ICFG heapsort.i [2022-11-20 12:36:10,086 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 12:36:10,087 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 12:36:10,087 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 12:36:10,087 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 12:36:10,087 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 12:36:10,087 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 12:36:10,088 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 12:36:10,088 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 12:36:10,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 57 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 56 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:10,119 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-11-20 12:36:10,119 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:36:10,119 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:36:10,127 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 12:36:10,128 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:36:10,128 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 12:36:10,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 57 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 56 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:10,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-11-20 12:36:10,132 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:36:10,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:36:10,133 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 12:36:10,133 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:36:10,141 INFO L748 eck$LassoCheckResult]: Stem: 49#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 18#L27true assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 3#L30true assume !(main_~l~0#1 > 1);main_#t~post3#1 := main_~r~0#1;main_~r~0#1 := main_#t~post3#1 - 1;havoc main_#t~post3#1; 15#L59-1true [2022-11-20 12:36:10,142 INFO L750 eck$LassoCheckResult]: Loop: 15#L59-1true assume !!(main_~r~0#1 > 1);main_~i~0#1 := main_~l~0#1;main_~j~0#1 := 2 * main_~l~0#1; 50#L38-2true assume !true; 34#L38-3true assume main_~l~0#1 > 1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~l~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 14#L18-30true assume !(0 == __VERIFIER_assert_~cond#1); 19#L18-32true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~l~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 32#L18-33true assume !(0 == __VERIFIER_assert_~cond#1); 13#L18-35true assume { :end_inline___VERIFIER_assert } true;main_#t~post6#1 := main_~l~0#1;main_~l~0#1 := main_#t~post6#1 - 1;havoc main_#t~post6#1; 15#L59-1true [2022-11-20 12:36:10,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:10,148 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-11-20 12:36:10,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:10,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615872490] [2022-11-20 12:36:10,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:10,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:10,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:36:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:10,295 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:36:10,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:10,299 INFO L85 PathProgramCache]: Analyzing trace with hash -947861826, now seen corresponding path program 1 times [2022-11-20 12:36:10,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:10,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756772593] [2022-11-20 12:36:10,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:10,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:10,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:36:10,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756772593] [2022-11-20 12:36:10,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756772593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:36:10,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:36:10,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:36:10,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128770230] [2022-11-20 12:36:10,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:36:10,355 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 12:36:10,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:36:10,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:36:10,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:36:10,420 INFO L87 Difference]: Start difference. First operand has 57 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 56 states have internal predecessors, (80), 0 states have call successors, (0), 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) [2022-11-20 12:36:10,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:36:10,430 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2022-11-20 12:36:10,434 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 64 transitions. [2022-11-20 12:36:10,445 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2022-11-20 12:36:10,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 39 states and 45 transitions. [2022-11-20 12:36:10,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2022-11-20 12:36:10,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2022-11-20 12:36:10,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 45 transitions. [2022-11-20 12:36:10,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:36:10,457 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-11-20 12:36:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 45 transitions. [2022-11-20 12:36:10,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-20 12:36:10,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 38 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:10,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2022-11-20 12:36:10,482 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-11-20 12:36:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:36:10,487 INFO L428 stractBuchiCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-11-20 12:36:10,487 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 12:36:10,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 45 transitions. [2022-11-20 12:36:10,488 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2022-11-20 12:36:10,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:36:10,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:36:10,489 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 12:36:10,489 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:36:10,489 INFO L748 eck$LassoCheckResult]: Stem: 155#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 135#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 136#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 124#L30 assume !(main_~l~0#1 > 1);main_#t~post3#1 := main_~r~0#1;main_~r~0#1 := main_#t~post3#1 - 1;havoc main_#t~post3#1; 125#L59-1 [2022-11-20 12:36:10,489 INFO L750 eck$LassoCheckResult]: Loop: 125#L59-1 assume !!(main_~r~0#1 > 1);main_~i~0#1 := main_~l~0#1;main_~j~0#1 := 2 * main_~l~0#1; 145#L38-2 assume !(main_~j~0#1 <= main_~r~0#1); 126#L38-3 assume main_~l~0#1 > 1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~l~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 128#L18-30 assume !(0 == __VERIFIER_assert_~cond#1); 142#L18-32 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~l~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 122#L18-33 assume !(0 == __VERIFIER_assert_~cond#1); 123#L18-35 assume { :end_inline___VERIFIER_assert } true;main_#t~post6#1 := main_~l~0#1;main_~l~0#1 := main_#t~post6#1 - 1;havoc main_#t~post6#1; 125#L59-1 [2022-11-20 12:36:10,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:10,490 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2022-11-20 12:36:10,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:10,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206900419] [2022-11-20 12:36:10,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:10,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:10,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:36:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:10,543 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:36:10,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:10,544 INFO L85 PathProgramCache]: Analyzing trace with hash -145650952, now seen corresponding path program 1 times [2022-11-20 12:36:10,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:10,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580329795] [2022-11-20 12:36:10,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:10,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:10,556 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:36:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:10,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:36:10,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:10,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1814169905, now seen corresponding path program 1 times [2022-11-20 12:36:10,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:10,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775279851] [2022-11-20 12:36:10,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:10,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:10,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:10,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:36:10,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775279851] [2022-11-20 12:36:10,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775279851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:36:10,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:36:10,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:36:10,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286623270] [2022-11-20 12:36:10,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:36:10,902 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:36:10,903 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:36:10,903 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:36:10,903 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:36:10,903 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 12:36:10,904 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:10,904 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:36:10,904 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:36:10,904 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration2_Loop [2022-11-20 12:36:10,904 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:36:10,905 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:36:10,924 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:10,971 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:10,974 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:11,055 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:36:11,056 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 12:36:11,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:11,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:11,062 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:11,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:36:11,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:11,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 12:36:11,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:11,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:11,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:11,119 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:11,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 12:36:11,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:11,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 12:36:11,375 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 12:36:11,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:11,383 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:36:11,383 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:36:11,383 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:36:11,384 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:36:11,384 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:36:11,384 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:11,384 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:36:11,384 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:36:11,384 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration2_Loop [2022-11-20 12:36:11,384 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:36:11,384 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:36:11,386 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:11,395 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:11,419 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:11,507 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:36:11,512 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:36:11,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:11,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:11,515 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:11,524 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 [2022-11-20 12:36:11,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:36:11,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:36:11,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:36:11,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:36:11,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:36:11,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:36:11,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:36:11,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 12:36:11,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:36:11,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:11,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:11,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:11,571 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:11,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 12:36:11,575 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 [2022-11-20 12:36:11,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:36:11,588 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:36:11,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:36:11,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:36:11,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:36:11,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:36:11,592 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:36:11,602 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:36:11,611 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 12:36:11,611 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 12:36:11,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:11,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:11,643 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:11,651 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:36:11,651 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 12:36:11,652 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:36:11,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 12:36:11,652 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~l~0#1) = 1*ULTIMATE.start_main_~l~0#1 Supporting invariants [] [2022-11-20 12:36:11,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:11,664 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 12:36:11,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:11,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:36:11,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:11,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:36:11,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:11,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:11,797 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 12:36:11,798 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 45 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) [2022-11-20 12:36:11,881 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 45 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 112 states and 130 transitions. Complement of second has 6 states. [2022-11-20 12:36:11,883 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 [2022-11-20 12:36:11,884 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) [2022-11-20 12:36:11,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2022-11-20 12:36:11,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 4 letters. Loop has 7 letters. [2022-11-20 12:36:11,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:11,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 11 letters. Loop has 7 letters. [2022-11-20 12:36:11,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:11,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 4 letters. Loop has 14 letters. [2022-11-20 12:36:11,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:11,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 130 transitions. [2022-11-20 12:36:11,892 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2022-11-20 12:36:11,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 108 states and 126 transitions. [2022-11-20 12:36:11,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2022-11-20 12:36:11,894 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2022-11-20 12:36:11,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 126 transitions. [2022-11-20 12:36:11,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:36:11,894 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 126 transitions. [2022-11-20 12:36:11,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 126 transitions. [2022-11-20 12:36:11,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2022-11-20 12:36:11,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 107 states have (on average 1.158878504672897) internal successors, (124), 106 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:11,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2022-11-20 12:36:11,901 INFO L240 hiAutomatonCegarLoop]: Abstraction has 107 states and 124 transitions. [2022-11-20 12:36:11,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:36:11,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:36:11,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:36:11,903 INFO L87 Difference]: Start difference. First operand 107 states and 124 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) [2022-11-20 12:36:11,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:36:11,929 INFO L93 Difference]: Finished difference Result 129 states and 148 transitions. [2022-11-20 12:36:11,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 148 transitions. [2022-11-20 12:36:11,933 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 93 [2022-11-20 12:36:11,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 98 states and 112 transitions. [2022-11-20 12:36:11,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 98 [2022-11-20 12:36:11,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2022-11-20 12:36:11,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 112 transitions. [2022-11-20 12:36:11,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:36:11,935 INFO L218 hiAutomatonCegarLoop]: Abstraction has 98 states and 112 transitions. [2022-11-20 12:36:11,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 112 transitions. [2022-11-20 12:36:11,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 66. [2022-11-20 12:36:11,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.1515151515151516) internal successors, (76), 65 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) [2022-11-20 12:36:11,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2022-11-20 12:36:11,940 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 76 transitions. [2022-11-20 12:36:11,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:36:11,948 INFO L428 stractBuchiCegarLoop]: Abstraction has 66 states and 76 transitions. [2022-11-20 12:36:11,948 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 12:36:11,948 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 76 transitions. [2022-11-20 12:36:11,949 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2022-11-20 12:36:11,949 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:36:11,949 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:36:11,950 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 12:36:11,950 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:36:11,950 INFO L748 eck$LassoCheckResult]: Stem: 599#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 578#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 579#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 567#L30 assume main_~l~0#1 > 1;main_#t~post2#1 := main_~l~0#1;main_~l~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 568#L59-1 [2022-11-20 12:36:11,950 INFO L750 eck$LassoCheckResult]: Loop: 568#L59-1 assume !!(main_~r~0#1 > 1);main_~i~0#1 := main_~l~0#1;main_~j~0#1 := 2 * main_~l~0#1; 608#L38-2 assume !(main_~j~0#1 <= main_~r~0#1); 605#L38-3 assume main_~l~0#1 > 1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~l~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 585#L18-30 assume !(0 == __VERIFIER_assert_~cond#1); 586#L18-32 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~l~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 565#L18-33 assume !(0 == __VERIFIER_assert_~cond#1); 566#L18-35 assume { :end_inline___VERIFIER_assert } true;main_#t~post6#1 := main_~l~0#1;main_~l~0#1 := main_#t~post6#1 - 1;havoc main_#t~post6#1; 568#L59-1 [2022-11-20 12:36:11,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:11,951 INFO L85 PathProgramCache]: Analyzing trace with hash 925670, now seen corresponding path program 1 times [2022-11-20 12:36:11,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:11,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598446099] [2022-11-20 12:36:11,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:11,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:11,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:36:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:11,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:36:11,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:11,996 INFO L85 PathProgramCache]: Analyzing trace with hash -145650952, now seen corresponding path program 2 times [2022-11-20 12:36:11,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:11,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673579721] [2022-11-20 12:36:11,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:11,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:12,017 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:36:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:12,025 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:36:12,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:12,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1671450765, now seen corresponding path program 1 times [2022-11-20 12:36:12,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:12,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170464775] [2022-11-20 12:36:12,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:12,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:12,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:12,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:36:12,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170464775] [2022-11-20 12:36:12,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170464775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:36:12,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:36:12,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:36:12,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68941020] [2022-11-20 12:36:12,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:36:12,331 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:36:12,331 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:36:12,331 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:36:12,331 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:36:12,331 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 12:36:12,332 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:12,332 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:36:12,332 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:36:12,332 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration3_Loop [2022-11-20 12:36:12,332 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:36:12,332 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:36:12,335 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:12,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:12,345 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:12,452 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:36:12,453 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 12:36:12,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:12,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:12,455 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:12,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:36:12,469 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:12,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 12:36:12,500 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:36:12,500 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:36:12,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:12,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:12,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:12,519 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:12,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:36:12,529 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:12,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 12:36:12,571 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:36:12,572 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:36:12,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:12,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:12,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:12,603 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:12,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 12:36:12,607 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:36:12,607 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:12,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:12,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:12,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:12,652 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:12,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 12:36:12,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 12:36:12,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:12,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:13,021 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 12:36:13,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:13,032 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:36:13,032 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:36:13,032 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:36:13,033 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:36:13,033 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:36:13,033 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:13,033 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:36:13,033 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:36:13,033 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration3_Loop [2022-11-20 12:36:13,033 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:36:13,033 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:36:13,035 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:13,045 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:13,062 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:13,130 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:36:13,130 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:36:13,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:13,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:13,132 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:13,146 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 [2022-11-20 12:36:13,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:36:13,158 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:36:13,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:36:13,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:36:13,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:36:13,160 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:36:13,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:36:13,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 12:36:13,169 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:36:13,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:13,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:13,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:13,180 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:13,189 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 [2022-11-20 12:36:13,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 12:36:13,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:36:13,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:36:13,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:36:13,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:36:13,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:36:13,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:36:13,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:36:13,216 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:36:13,227 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 12:36:13,227 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 12:36:13,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:13,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:13,228 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:13,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 12:36:13,237 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:36:13,237 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 12:36:13,237 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:36:13,237 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~l~0#1) = 1*ULTIMATE.start_main_~l~0#1 Supporting invariants [] [2022-11-20 12:36:13,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-11-20 12:36:13,243 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 12:36:13,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:13,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:36:13,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:13,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:36:13,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:13,359 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 12:36:13,359 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 76 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) [2022-11-20 12:36:13,401 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 76 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 160 states and 185 transitions. Complement of second has 6 states. [2022-11-20 12:36:13,406 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 [2022-11-20 12:36:13,407 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) [2022-11-20 12:36:13,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2022-11-20 12:36:13,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 4 letters. Loop has 7 letters. [2022-11-20 12:36:13,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:13,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 11 letters. Loop has 7 letters. [2022-11-20 12:36:13,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:13,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 4 letters. Loop has 14 letters. [2022-11-20 12:36:13,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:13,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 185 transitions. [2022-11-20 12:36:13,414 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 87 [2022-11-20 12:36:13,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 125 states and 145 transitions. [2022-11-20 12:36:13,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2022-11-20 12:36:13,420 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2022-11-20 12:36:13,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 145 transitions. [2022-11-20 12:36:13,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:36:13,424 INFO L218 hiAutomatonCegarLoop]: Abstraction has 125 states and 145 transitions. [2022-11-20 12:36:13,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 145 transitions. [2022-11-20 12:36:13,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 67. [2022-11-20 12:36:13,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 67 states have (on average 1.164179104477612) internal successors, (78), 66 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) [2022-11-20 12:36:13,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 78 transitions. [2022-11-20 12:36:13,433 INFO L240 hiAutomatonCegarLoop]: Abstraction has 67 states and 78 transitions. [2022-11-20 12:36:13,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:36:13,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:36:13,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:36:13,434 INFO L87 Difference]: Start difference. First operand 67 states and 78 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) [2022-11-20 12:36:13,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:36:13,602 INFO L93 Difference]: Finished difference Result 207 states and 231 transitions. [2022-11-20 12:36:13,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 207 states and 231 transitions. [2022-11-20 12:36:13,604 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 128 [2022-11-20 12:36:13,609 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 207 states to 207 states and 231 transitions. [2022-11-20 12:36:13,609 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 155 [2022-11-20 12:36:13,611 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 155 [2022-11-20 12:36:13,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 231 transitions. [2022-11-20 12:36:13,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:36:13,616 INFO L218 hiAutomatonCegarLoop]: Abstraction has 207 states and 231 transitions. [2022-11-20 12:36:13,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 231 transitions. [2022-11-20 12:36:13,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 69. [2022-11-20 12:36:13,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.1594202898550725) internal successors, (80), 68 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:13,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2022-11-20 12:36:13,634 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-11-20 12:36:13,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:36:13,635 INFO L428 stractBuchiCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-11-20 12:36:13,637 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 12:36:13,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 80 transitions. [2022-11-20 12:36:13,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2022-11-20 12:36:13,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:36:13,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:36:13,639 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 12:36:13,639 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:36:13,640 INFO L748 eck$LassoCheckResult]: Stem: 1184#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 1147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1148#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 1129#L30 assume !(main_~l~0#1 > 1);main_#t~post3#1 := main_~r~0#1;main_~r~0#1 := main_#t~post3#1 - 1;havoc main_#t~post3#1; 1131#L59-1 [2022-11-20 12:36:13,640 INFO L750 eck$LassoCheckResult]: Loop: 1131#L59-1 assume !!(main_~r~0#1 > 1);main_~i~0#1 := main_~l~0#1;main_~j~0#1 := 2 * main_~l~0#1; 1167#L38-2 assume !(main_~j~0#1 <= main_~r~0#1); 1132#L38-3 assume !(main_~l~0#1 > 1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~r~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1133#L18-36 assume !(0 == __VERIFIER_assert_~cond#1); 1144#L18-38 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~r~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1145#L18-39 assume !(0 == __VERIFIER_assert_~cond#1); 1146#L18-41 assume { :end_inline___VERIFIER_assert } true;main_#t~post7#1 := main_~r~0#1;main_~r~0#1 := main_#t~post7#1 - 1;havoc main_#t~post7#1; 1131#L59-1 [2022-11-20 12:36:13,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:13,641 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 3 times [2022-11-20 12:36:13,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:13,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408708218] [2022-11-20 12:36:13,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:13,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:13,657 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:36:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:13,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:36:13,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:13,674 INFO L85 PathProgramCache]: Analyzing trace with hash -124656242, now seen corresponding path program 1 times [2022-11-20 12:36:13,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:13,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556817254] [2022-11-20 12:36:13,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:13,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:13,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:13,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:36:13,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556817254] [2022-11-20 12:36:13,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556817254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:36:13,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:36:13,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:36:13,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246823633] [2022-11-20 12:36:13,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:36:13,713 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 12:36:13,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:36:13,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:36:13,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:36:13,715 INFO L87 Difference]: Start difference. First operand 69 states and 80 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) [2022-11-20 12:36:13,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:36:13,791 INFO L93 Difference]: Finished difference Result 129 states and 146 transitions. [2022-11-20 12:36:13,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 146 transitions. [2022-11-20 12:36:13,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61 [2022-11-20 12:36:13,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 128 states and 145 transitions. [2022-11-20 12:36:13,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2022-11-20 12:36:13,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2022-11-20 12:36:13,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 145 transitions. [2022-11-20 12:36:13,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:36:13,795 INFO L218 hiAutomatonCegarLoop]: Abstraction has 128 states and 145 transitions. [2022-11-20 12:36:13,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 145 transitions. [2022-11-20 12:36:13,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 69. [2022-11-20 12:36:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.1594202898550725) internal successors, (80), 68 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:13,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2022-11-20 12:36:13,808 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-11-20 12:36:13,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:36:13,810 INFO L428 stractBuchiCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-11-20 12:36:13,811 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 12:36:13,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 80 transitions. [2022-11-20 12:36:13,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2022-11-20 12:36:13,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:36:13,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:36:13,812 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 12:36:13,813 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:36:13,813 INFO L748 eck$LassoCheckResult]: Stem: 1390#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 1354#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1355#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 1336#L30 assume !(main_~l~0#1 > 1);main_#t~post3#1 := main_~r~0#1;main_~r~0#1 := main_#t~post3#1 - 1;havoc main_#t~post3#1; 1338#L59-1 [2022-11-20 12:36:13,814 INFO L750 eck$LassoCheckResult]: Loop: 1338#L59-1 assume !!(main_~r~0#1 > 1);main_~i~0#1 := main_~l~0#1;main_~j~0#1 := 2 * main_~l~0#1; 1374#L38-2 assume !!(main_~j~0#1 <= main_~r~0#1); 1378#L39 assume !(main_~j~0#1 < main_~r~0#1); 1348#L39-1 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1356#L18-12 assume !(0 == __VERIFIER_assert_~cond#1); 1357#L18-14 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1391#L18-15 assume !(0 == __VERIFIER_assert_~cond#1); 1392#L18-17 assume { :end_inline___VERIFIER_assert } true; 1376#L49 assume 0 != main_#t~nondet5#1;havoc main_#t~nondet5#1; 1339#L38-3 assume !(main_~l~0#1 > 1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~r~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1340#L18-36 assume !(0 == __VERIFIER_assert_~cond#1); 1351#L18-38 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~r~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1352#L18-39 assume !(0 == __VERIFIER_assert_~cond#1); 1353#L18-41 assume { :end_inline___VERIFIER_assert } true;main_#t~post7#1 := main_~r~0#1;main_~r~0#1 := main_#t~post7#1 - 1;havoc main_#t~post7#1; 1338#L59-1 [2022-11-20 12:36:13,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:13,816 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 4 times [2022-11-20 12:36:13,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:13,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172440664] [2022-11-20 12:36:13,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:13,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:13,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:36:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:13,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:36:13,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:13,847 INFO L85 PathProgramCache]: Analyzing trace with hash -470789538, now seen corresponding path program 1 times [2022-11-20 12:36:13,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:13,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136365584] [2022-11-20 12:36:13,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:13,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:13,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:36:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:13,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:36:13,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:13,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1515786757, now seen corresponding path program 1 times [2022-11-20 12:36:13,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:13,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84373831] [2022-11-20 12:36:13,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:13,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:13,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:13,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:36:13,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84373831] [2022-11-20 12:36:13,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84373831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:36:13,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:36:13,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:36:13,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424804850] [2022-11-20 12:36:13,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:36:14,226 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:36:14,226 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:36:14,226 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:36:14,226 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:36:14,226 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 12:36:14,227 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:14,227 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:36:14,227 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:36:14,227 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration5_Loop [2022-11-20 12:36:14,227 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:36:14,227 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:36:14,228 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:14,236 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:14,239 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:14,262 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:14,342 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:36:14,343 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 12:36:14,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:14,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:14,359 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:14,368 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:36:14,368 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:14,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 12:36:14,391 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:36:14,392 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:36:14,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:14,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:14,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:14,402 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:14,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 12:36:14,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:36:14,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:14,439 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:36:14,439 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=4} Honda state: {ULTIMATE.start_main_#t~nondet5#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:36:14,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:14,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:14,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:14,449 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:14,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:36:14,460 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:14,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 12:36:14,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:14,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:14,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:14,498 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:14,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 12:36:14,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:14,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 12:36:14,937 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 12:36:14,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:14,943 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:36:14,943 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:36:14,960 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:36:14,960 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:36:14,961 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:36:14,961 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:14,961 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:36:14,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:36:14,961 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration5_Loop [2022-11-20 12:36:14,961 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:36:14,961 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:36:14,962 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:14,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-11-20 12:36:14,996 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:14,998 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:15,008 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:15,089 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:36:15,089 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:36:15,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:15,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:15,095 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:15,104 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 [2022-11-20 12:36:15,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:36:15,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:36:15,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:36:15,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:36:15,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:36:15,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 12:36:15,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:36:15,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:36:15,136 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:36:15,140 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-20 12:36:15,140 INFO L444 ModelExtractionUtils]: 5 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 12:36:15,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:15,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:15,143 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:15,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 12:36:15,153 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:36:15,153 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 12:36:15,153 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:36:15,153 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~r~0#1) = 1*ULTIMATE.start_main_~r~0#1 Supporting invariants [] [2022-11-20 12:36:15,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:15,158 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 12:36:15,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:15,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:36:15,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:15,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:36:15,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:15,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:15,305 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 12:36:15,305 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 80 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2022-11-20 12:36:15,348 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 80 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 133 states and 153 transitions. Complement of second has 4 states. [2022-11-20 12:36:15,348 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 [2022-11-20 12:36:15,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2022-11-20 12:36:15,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2022-11-20 12:36:15,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 80 transitions. Stem has 4 letters. Loop has 14 letters. [2022-11-20 12:36:15,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:15,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 80 transitions. Stem has 18 letters. Loop has 14 letters. [2022-11-20 12:36:15,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:15,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 80 transitions. Stem has 4 letters. Loop has 28 letters. [2022-11-20 12:36:15,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:15,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 133 states and 153 transitions. [2022-11-20 12:36:15,358 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2022-11-20 12:36:15,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 133 states to 128 states and 147 transitions. [2022-11-20 12:36:15,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2022-11-20 12:36:15,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2022-11-20 12:36:15,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 147 transitions. [2022-11-20 12:36:15,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:36:15,361 INFO L218 hiAutomatonCegarLoop]: Abstraction has 128 states and 147 transitions. [2022-11-20 12:36:15,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 147 transitions. [2022-11-20 12:36:15,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2022-11-20 12:36:15,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 127 states have (on average 1.1496062992125984) internal successors, (146), 126 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:15,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2022-11-20 12:36:15,376 INFO L240 hiAutomatonCegarLoop]: Abstraction has 127 states and 146 transitions. [2022-11-20 12:36:15,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:36:15,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:36:15,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:36:15,377 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. 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) [2022-11-20 12:36:15,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:36:15,410 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2022-11-20 12:36:15,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 80 transitions. [2022-11-20 12:36:15,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2022-11-20 12:36:15,411 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 69 states and 79 transitions. [2022-11-20 12:36:15,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2022-11-20 12:36:15,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2022-11-20 12:36:15,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 79 transitions. [2022-11-20 12:36:15,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:36:15,412 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-20 12:36:15,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 79 transitions. [2022-11-20 12:36:15,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-20 12:36:15,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.144927536231884) internal successors, (79), 68 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:15,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2022-11-20 12:36:15,415 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-20 12:36:15,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:36:15,423 INFO L428 stractBuchiCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-20 12:36:15,423 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-20 12:36:15,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 79 transitions. [2022-11-20 12:36:15,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 32 [2022-11-20 12:36:15,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:36:15,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:36:15,424 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-20 12:36:15,424 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:36:15,424 INFO L748 eck$LassoCheckResult]: Stem: 1866#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 1829#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1830#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 1812#L30 assume main_~l~0#1 > 1;main_#t~post2#1 := main_~l~0#1;main_~l~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 1813#L59-1 assume !!(main_~r~0#1 > 1);main_~i~0#1 := main_~l~0#1;main_~j~0#1 := 2 * main_~l~0#1; 1846#L38-2 [2022-11-20 12:36:15,425 INFO L750 eck$LassoCheckResult]: Loop: 1846#L38-2 assume !!(main_~j~0#1 <= main_~r~0#1); 1858#L39 assume !(main_~j~0#1 < main_~r~0#1); 1823#L39-1 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1831#L18-12 assume !(0 == __VERIFIER_assert_~cond#1); 1832#L18-14 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1867#L18-15 assume !(0 == __VERIFIER_assert_~cond#1); 1868#L18-17 assume { :end_inline___VERIFIER_assert } true; 1852#L49 assume 0 != main_#t~nondet5#1;havoc main_#t~nondet5#1; 1818#L38-3 assume !(main_~l~0#1 > 1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~r~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1819#L18-36 assume !(0 == __VERIFIER_assert_~cond#1); 1826#L18-38 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~r~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1827#L18-39 assume !(0 == __VERIFIER_assert_~cond#1); 1828#L18-41 assume { :end_inline___VERIFIER_assert } true;main_#t~post7#1 := main_~r~0#1;main_~r~0#1 := main_#t~post7#1 - 1;havoc main_#t~post7#1; 1840#L59-1 assume !!(main_~r~0#1 > 1);main_~i~0#1 := main_~l~0#1;main_~j~0#1 := 2 * main_~l~0#1; 1846#L38-2 [2022-11-20 12:36:15,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:15,425 INFO L85 PathProgramCache]: Analyzing trace with hash 28695791, now seen corresponding path program 1 times [2022-11-20 12:36:15,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:15,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950038843] [2022-11-20 12:36:15,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:15,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:15,441 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:36:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:15,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:36:15,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:15,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1285304700, now seen corresponding path program 2 times [2022-11-20 12:36:15,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:15,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080348292] [2022-11-20 12:36:15,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:15,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:15,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:36:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:15,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:36:15,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:15,485 INFO L85 PathProgramCache]: Analyzing trace with hash 765817586, now seen corresponding path program 1 times [2022-11-20 12:36:15,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:15,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259212441] [2022-11-20 12:36:15,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:15,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:15,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:15,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:36:15,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259212441] [2022-11-20 12:36:15,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259212441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:36:15,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:36:15,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:36:15,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979296072] [2022-11-20 12:36:15,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:36:15,776 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:36:15,777 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:36:15,777 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:36:15,777 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:36:15,777 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 12:36:15,777 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:15,777 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:36:15,777 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:36:15,777 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration6_Loop [2022-11-20 12:36:15,777 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:36:15,777 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:36:15,778 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:15,782 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:15,788 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:15,805 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:15,875 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:36:15,875 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 12:36:15,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:15,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:15,879 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:15,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:36:15,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:15,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 12:36:15,914 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:36:15,914 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=4} Honda state: {ULTIMATE.start_main_#t~nondet5#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:36:15,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:15,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:15,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:15,919 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:15,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 12:36:15,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:36:15,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:15,941 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:36:15,941 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:36:15,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:15,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:15,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:15,948 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:15,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-20 12:36:15,951 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:36:15,951 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:15,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:15,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:15,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:15,979 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:15,983 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 12:36:15,983 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:15,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 12:36:16,277 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 12:36:16,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:16,282 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:36:16,282 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:36:16,282 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:36:16,282 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:36:16,282 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:36:16,282 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:16,282 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:36:16,282 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:36:16,282 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration6_Loop [2022-11-20 12:36:16,282 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:36:16,283 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:36:16,284 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:16,287 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:16,313 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:16,315 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:16,390 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:36:16,390 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:36:16,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:16,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:16,392 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:16,400 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 [2022-11-20 12:36:16,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:36:16,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:36:16,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:36:16,413 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-20 12:36:16,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:36:16,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 12:36:16,414 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-20 12:36:16,414 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:36:16,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:36:16,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:16,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:16,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:16,433 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:16,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 12:36:16,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:36:16,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:36:16,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:36:16,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:36:16,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:36:16,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-20 12:36:16,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:36:16,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:36:16,471 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:36:16,478 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 12:36:16,478 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 12:36:16,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:16,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:16,482 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:16,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-20 12:36:16,484 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:36:16,485 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 12:36:16,485 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:36:16,485 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~r~0#1) = 1*ULTIMATE.start_main_~r~0#1 Supporting invariants [] [2022-11-20 12:36:16,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:16,490 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 12:36:16,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:16,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:36:16,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:16,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:36:16,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:16,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:16,578 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 12:36:16,578 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 79 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:16,652 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 79 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 137 states and 159 transitions. Complement of second has 6 states. [2022-11-20 12:36:16,653 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 [2022-11-20 12:36:16,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:16,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2022-11-20 12:36:16,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 5 letters. Loop has 14 letters. [2022-11-20 12:36:16,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:16,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:16,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 19 letters. Loop has 14 letters. [2022-11-20 12:36:16,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:16,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 5 letters. Loop has 28 letters. [2022-11-20 12:36:16,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:16,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 159 transitions. [2022-11-20 12:36:16,657 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-20 12:36:16,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 131 states and 152 transitions. [2022-11-20 12:36:16,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-11-20 12:36:16,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2022-11-20 12:36:16,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 152 transitions. [2022-11-20 12:36:16,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:36:16,659 INFO L218 hiAutomatonCegarLoop]: Abstraction has 131 states and 152 transitions. [2022-11-20 12:36:16,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states and 152 transitions. [2022-11-20 12:36:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2022-11-20 12:36:16,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 129 states have (on average 1.1550387596899225) internal successors, (149), 128 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2022-11-20 12:36:16,663 INFO L240 hiAutomatonCegarLoop]: Abstraction has 129 states and 149 transitions. [2022-11-20 12:36:16,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:36:16,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:36:16,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-11-20 12:36:16,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:36:16,665 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:16,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:36:16,845 INFO L93 Difference]: Finished difference Result 430 states and 476 transitions. [2022-11-20 12:36:16,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 430 states and 476 transitions. [2022-11-20 12:36:16,849 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2022-11-20 12:36:16,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 430 states to 379 states and 421 transitions. [2022-11-20 12:36:16,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2022-11-20 12:36:16,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2022-11-20 12:36:16,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 379 states and 421 transitions. [2022-11-20 12:36:16,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:36:16,852 INFO L218 hiAutomatonCegarLoop]: Abstraction has 379 states and 421 transitions. [2022-11-20 12:36:16,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states and 421 transitions. [2022-11-20 12:36:16,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 130. [2022-11-20 12:36:16,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 130 states have (on average 1.1538461538461537) internal successors, (150), 129 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:16,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 150 transitions. [2022-11-20 12:36:16,857 INFO L240 hiAutomatonCegarLoop]: Abstraction has 130 states and 150 transitions. [2022-11-20 12:36:16,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:36:16,858 INFO L428 stractBuchiCegarLoop]: Abstraction has 130 states and 150 transitions. [2022-11-20 12:36:16,858 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-20 12:36:16,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states and 150 transitions. [2022-11-20 12:36:16,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-20 12:36:16,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:36:16,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:36:16,861 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-20 12:36:16,861 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:36:16,861 INFO L748 eck$LassoCheckResult]: Stem: 2726#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 2684#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 2685#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 2670#L30 assume main_~l~0#1 > 1;main_#t~post2#1 := main_~l~0#1;main_~l~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 2671#L59-1 assume !!(main_~r~0#1 > 1);main_~i~0#1 := main_~l~0#1;main_~j~0#1 := 2 * main_~l~0#1; 2707#L38-2 assume !!(main_~j~0#1 <= main_~r~0#1); 2714#L39 [2022-11-20 12:36:16,861 INFO L750 eck$LassoCheckResult]: Loop: 2714#L39 assume !(main_~j~0#1 < main_~r~0#1); 2673#L39-1 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 2687#L18-12 assume !(0 == __VERIFIER_assert_~cond#1); 2688#L18-14 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 2727#L18-15 assume !(0 == __VERIFIER_assert_~cond#1); 2728#L18-17 assume { :end_inline___VERIFIER_assert } true; 2711#L49 assume !(0 != main_#t~nondet5#1);havoc main_#t~nondet5#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 2699#L18-18 assume !(0 == __VERIFIER_assert_~cond#1); 2700#L18-20 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~i~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 2718#L18-21 assume !(0 == __VERIFIER_assert_~cond#1); 2719#L18-23 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 2722#L18-24 assume !(0 == __VERIFIER_assert_~cond#1); 2723#L18-26 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 2739#L18-27 assume !(0 == __VERIFIER_assert_~cond#1); 2734#L18-29 assume { :end_inline___VERIFIER_assert } true;main_~i~0#1 := main_~j~0#1;main_~j~0#1 := 2 * main_~j~0#1; 2709#L38-2 assume !!(main_~j~0#1 <= main_~r~0#1); 2714#L39 [2022-11-20 12:36:16,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:16,862 INFO L85 PathProgramCache]: Analyzing trace with hash 889569551, now seen corresponding path program 1 times [2022-11-20 12:36:16,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:16,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903136471] [2022-11-20 12:36:16,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:16,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:16,869 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:36:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:16,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:36:16,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:16,876 INFO L85 PathProgramCache]: Analyzing trace with hash 184163919, now seen corresponding path program 1 times [2022-11-20 12:36:16,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:16,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704210539] [2022-11-20 12:36:16,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:16,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:16,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:16,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:36:16,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704210539] [2022-11-20 12:36:16,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704210539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:36:16,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:36:16,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:36:16,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636746155] [2022-11-20 12:36:16,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:36:16,982 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 12:36:16,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:36:16,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:36:16,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:36:16,983 INFO L87 Difference]: Start difference. First operand 130 states and 150 transitions. cyclomatic complexity: 24 Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:17,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:36:17,182 INFO L93 Difference]: Finished difference Result 239 states and 267 transitions. [2022-11-20 12:36:17,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 239 states and 267 transitions. [2022-11-20 12:36:17,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-20 12:36:17,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 239 states to 224 states and 252 transitions. [2022-11-20 12:36:17,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2022-11-20 12:36:17,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2022-11-20 12:36:17,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 252 transitions. [2022-11-20 12:36:17,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 12:36:17,186 INFO L218 hiAutomatonCegarLoop]: Abstraction has 224 states and 252 transitions. [2022-11-20 12:36:17,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 252 transitions. [2022-11-20 12:36:17,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 175. [2022-11-20 12:36:17,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 175 states have (on average 1.1257142857142857) internal successors, (197), 174 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:17,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 197 transitions. [2022-11-20 12:36:17,190 INFO L240 hiAutomatonCegarLoop]: Abstraction has 175 states and 197 transitions. [2022-11-20 12:36:17,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:36:17,192 INFO L428 stractBuchiCegarLoop]: Abstraction has 175 states and 197 transitions. [2022-11-20 12:36:17,192 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-20 12:36:17,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states and 197 transitions. [2022-11-20 12:36:17,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-11-20 12:36:17,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:36:17,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:36:17,195 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-20 12:36:17,195 INFO L149 hiAutomatonCegarLoop]: 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, 1, 1] [2022-11-20 12:36:17,195 INFO L748 eck$LassoCheckResult]: Stem: 3113#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 3070#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;main_#in~argc#1, main_#in~argv#1.base, main_#in~argv#1.offset := #in~argc#1, #in~argv#1.base, #in~argv#1.offset;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_#t~post7#1, main_~argc#1, main_~argv#1.base, main_~argv#1.offset, main_~n~0#1, main_~l~0#1, main_~r~0#1, main_~i~0#1, main_~j~0#1;main_~argc#1 := main_#in~argc#1;main_~argv#1.base, main_~argv#1.offset := main_#in~argv#1.base, main_#in~argv#1.offset;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~r~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3071#L27 assume !!(1 <= main_~n~0#1 && main_~n~0#1 <= 1000000);main_~l~0#1 := 1 + (if main_~n~0#1 < 0 && 0 != main_~n~0#1 % 2 then 1 + main_~n~0#1 / 2 else main_~n~0#1 / 2);main_~r~0#1 := main_~n~0#1; 3056#L30 assume main_~l~0#1 > 1;main_#t~post2#1 := main_~l~0#1;main_~l~0#1 := main_#t~post2#1 - 1;havoc main_#t~post2#1; 3057#L59-1 assume !!(main_~r~0#1 > 1);main_~i~0#1 := main_~l~0#1;main_~j~0#1 := 2 * main_~l~0#1; 3088#L38-2 assume !!(main_~j~0#1 <= main_~r~0#1); 3100#L39 [2022-11-20 12:36:17,196 INFO L750 eck$LassoCheckResult]: Loop: 3100#L39 assume main_~j~0#1 < main_~r~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 3101#L18 assume !(0 == __VERIFIER_assert_~cond#1); 3092#L18-2 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 3093#L18-3 assume !(0 == __VERIFIER_assert_~cond#1); 3058#L18-5 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= 1 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 3059#L18-6 assume !(0 == __VERIFIER_assert_~cond#1); 3077#L18-8 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 + main_~j~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 3078#L18-9 assume !(0 == __VERIFIER_assert_~cond#1); 3124#L18-11 assume { :end_inline___VERIFIER_assert } true; 3064#L44 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~j~0#1 := 1 + main_~j~0#1; 3065#L39-1 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 3073#L18-12 assume !(0 == __VERIFIER_assert_~cond#1); 3074#L18-14 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 3114#L18-15 assume !(0 == __VERIFIER_assert_~cond#1); 3115#L18-17 assume { :end_inline___VERIFIER_assert } true; 3096#L49 assume !(0 != main_#t~nondet5#1);havoc main_#t~nondet5#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 3084#L18-18 assume !(0 == __VERIFIER_assert_~cond#1); 3085#L18-20 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~i~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 3105#L18-21 assume !(0 == __VERIFIER_assert_~cond#1); 3106#L18-23 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 3109#L18-24 assume !(0 == __VERIFIER_assert_~cond#1); 3110#L18-26 assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 3132#L18-27 assume !(0 == __VERIFIER_assert_~cond#1); 3126#L18-29 assume { :end_inline___VERIFIER_assert } true;main_~i~0#1 := main_~j~0#1;main_~j~0#1 := 2 * main_~j~0#1; 3090#L38-2 assume !!(main_~j~0#1 <= main_~r~0#1); 3100#L39 [2022-11-20 12:36:17,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:17,196 INFO L85 PathProgramCache]: Analyzing trace with hash 889569551, now seen corresponding path program 2 times [2022-11-20 12:36:17,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:17,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145536299] [2022-11-20 12:36:17,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:17,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:17,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:36:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:17,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:36:17,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:17,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1105792449, now seen corresponding path program 1 times [2022-11-20 12:36:17,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:17,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747153284] [2022-11-20 12:36:17,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:17,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:17,244 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:36:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:36:17,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:36:17,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:17,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1170285327, now seen corresponding path program 1 times [2022-11-20 12:36:17,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:36:17,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483083563] [2022-11-20 12:36:17,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:17,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:36:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:17,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:17,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:36:17,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483083563] [2022-11-20 12:36:17,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483083563] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:36:17,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032778752] [2022-11-20 12:36:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:36:17,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:36:17,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:17,437 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:36:17,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-20 12:36:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:17,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:36:17,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:17,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:17,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:36:17,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032778752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:36:17,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:36:17,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-11-20 12:36:17,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086241962] [2022-11-20 12:36:17,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:36:18,051 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:36:18,051 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:36:18,051 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:36:18,051 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:36:18,051 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 12:36:18,052 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:18,052 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:36:18,052 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:36:18,052 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration8_Loop [2022-11-20 12:36:18,052 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:36:18,052 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:36:18,054 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:18,057 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:18,072 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:18,079 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:18,150 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:36:18,150 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 12:36:18,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:18,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:18,152 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:18,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:36:18,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:18,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-20 12:36:18,183 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:36:18,183 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=4} Honda state: {ULTIMATE.start_main_#t~nondet4#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:36:18,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-11-20 12:36:18,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:18,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:18,188 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:18,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:36:18,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:18,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-20 12:36:18,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:18,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:18,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:18,237 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:18,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 12:36:18,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:36:18,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-20 12:36:18,382 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 12:36:18,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-11-20 12:36:18,385 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:36:18,385 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:36:18,385 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:36:18,385 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:36:18,386 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 12:36:18,386 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:18,386 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:36:18,386 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:36:18,386 INFO L133 ssoRankerPreferences]: Filename of dumped script: heapsort.i_Iteration8_Loop [2022-11-20 12:36:18,386 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:36:18,386 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:36:18,387 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:18,390 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:18,411 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:18,417 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:36:18,489 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:36:18,489 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 12:36:18,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:18,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:18,491 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:18,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-20 12:36:18,497 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 [2022-11-20 12:36:18,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:36:18,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:36:18,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:36:18,507 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-20 12:36:18,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:36:18,508 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-20 12:36:18,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:36:18,510 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 12:36:18,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-11-20 12:36:18,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:18,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:18,514 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:18,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-20 12:36:18,518 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 [2022-11-20 12:36:18,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 12:36:18,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 12:36:18,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 12:36:18,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 12:36:18,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 12:36:18,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 12:36:18,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 12:36:18,538 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 12:36:18,542 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 12:36:18,543 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 12:36:18,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:36:18,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:18,544 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:18,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-20 12:36:18,546 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 12:36:18,546 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 12:36:18,547 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 12:36:18,547 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2022-11-20 12:36:18,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-11-20 12:36:18,550 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 12:36:18,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:18,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:36:18,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:18,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 12:36:18,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:18,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:18,827 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2022-11-20 12:36:18,828 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 175 states and 197 transitions. cyclomatic complexity: 26 Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:18,949 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 175 states and 197 transitions. cyclomatic complexity: 26. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 483 states and 524 transitions. Complement of second has 11 states. [2022-11-20 12:36:18,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2022-11-20 12:36:18,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:18,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 47 transitions. [2022-11-20 12:36:18,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 47 transitions. Stem has 6 letters. Loop has 25 letters. [2022-11-20 12:36:18,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:18,951 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 12:36:18,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:18,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:36:18,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:19,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 12:36:19,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:19,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:19,292 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 7 loop predicates [2022-11-20 12:36:19,293 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 175 states and 197 transitions. cyclomatic complexity: 26 Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:19,467 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 175 states and 197 transitions. cyclomatic complexity: 26. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 483 states and 524 transitions. Complement of second has 11 states. [2022-11-20 12:36:19,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-20 12:36:19,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:19,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 47 transitions. [2022-11-20 12:36:19,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 47 transitions. Stem has 6 letters. Loop has 25 letters. [2022-11-20 12:36:19,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:19,469 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 12:36:19,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:19,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:36:19,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:19,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 12:36:19,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:19,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:19,776 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2022-11-20 12:36:19,777 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 175 states and 197 transitions. cyclomatic complexity: 26 Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:19,891 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 175 states and 197 transitions. cyclomatic complexity: 26. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 373 states and 405 transitions. Complement of second has 10 states. [2022-11-20 12:36:19,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2022-11-20 12:36:19,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:19,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2022-11-20 12:36:19,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 86 transitions. Stem has 6 letters. Loop has 25 letters. [2022-11-20 12:36:19,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:19,893 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 12:36:19,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:19,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:36:19,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:19,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 12:36:19,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:20,168 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 7 loop predicates [2022-11-20 12:36:20,168 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 175 states and 197 transitions. cyclomatic complexity: 26 Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:20,327 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 175 states and 197 transitions. cyclomatic complexity: 26. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 373 states and 405 transitions. Complement of second has 10 states. [2022-11-20 12:36:20,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-20 12:36:20,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2022-11-20 12:36:20,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 86 transitions. Stem has 6 letters. Loop has 25 letters. [2022-11-20 12:36:20,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:20,329 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 12:36:20,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:36:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:20,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:36:20,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:36:20,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 12:36:20,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:36:20,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:36:20,636 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2022-11-20 12:36:20,637 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 175 states and 197 transitions. cyclomatic complexity: 26 Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:20,942 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 175 states and 197 transitions. cyclomatic complexity: 26 Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 2225 states and 2838 transitions. Complement of second has 60 states 8 powerset states52 rank states. The highest rank that occured is 5 [2022-11-20 12:36:20,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-20 12:36:20,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:36:20,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 196 transitions. [2022-11-20 12:36:20,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 196 transitions. Stem has 6 letters. Loop has 25 letters. [2022-11-20 12:36:20,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 12:36:20,946 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 12:36:20,946 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: no settings was sufficient at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.refineBuchiInternal(AbstractBuchiCegarLoop.java:663) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.runCegarLoop(AbstractBuchiCegarLoop.java:398) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.runCegarLoops(BuchiAutomizerObserver.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:157) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:341) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 12:36:20,950 INFO L158 Benchmark]: Toolchain (without parser) took 11738.49ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 121.9MB in the beginning and 113.3MB in the end (delta: 8.6MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2022-11-20 12:36:20,950 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory was 73.9MB in the beginning and 73.8MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:36:20,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.42ms. Allocated memory is still 165.7MB. Free memory was 121.4MB in the beginning and 110.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 12:36:20,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.31ms. Allocated memory is still 165.7MB. Free memory was 110.9MB in the beginning and 109.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:36:20,951 INFO L158 Benchmark]: Boogie Preprocessor took 26.68ms. Allocated memory is still 165.7MB. Free memory was 108.8MB in the beginning and 107.9MB in the end (delta: 936.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:36:20,951 INFO L158 Benchmark]: RCFGBuilder took 424.57ms. Allocated memory is still 165.7MB. Free memory was 107.9MB in the beginning and 94.1MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:36:20,952 INFO L158 Benchmark]: BuchiAutomizer took 10988.94ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 94.1MB in the beginning and 113.3MB in the end (delta: -19.2MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2022-11-20 12:36:20,953 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory was 73.9MB in the beginning and 73.8MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.42ms. Allocated memory is still 165.7MB. Free memory was 121.4MB in the beginning and 110.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.31ms. Allocated memory is still 165.7MB. Free memory was 110.9MB in the beginning and 109.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.68ms. Allocated memory is still 165.7MB. Free memory was 108.8MB in the beginning and 107.9MB in the end (delta: 936.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.57ms. Allocated memory is still 165.7MB. Free memory was 107.9MB in the beginning and 94.1MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 10988.94ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 94.1MB in the beginning and 113.3MB in the end (delta: -19.2MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: no settings was sufficient de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: no settings was sufficient: de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.refineBuchiInternal(AbstractBuchiCegarLoop.java:663) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-20 12:36:20,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-20 12:36:21,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e4ba57f-33a5-424f-8623-3da75ef5d25a/bin/uautomizer-ug76WZFUDN/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: no settings was sufficient